Principal Features
HAYNES® 282®alloy (UNS N07208) is a, wrought, gamma-prime strengthened superalloy developed for high temperature structural applications, especially those in aero and industrial gas turbine engines. It possesses a unique combination of creep strength, thermal stability, weldability, and fabricability not found in currently available commercial alloys. The excellent creep strength in the temperature range of 1200 to 1700°F (649 to 927°C) surpasses that of Waspaloy alloy, and approaches R-41 alloy without sacrificing weldability.
Easily Fabricated
This high level of creep strength in HAYNES®282®alloy has been attained at a relatively low volume fraction of the strengthening gamma-prime phase, resulting in outstanding resistance to strain-age cracking (normally a problem with superalloys in this creep strength range). Additionally, slow gamma-prime precipitation kinetics allow for the alloy to have excellent ductility in the as-annealed condition. Consequently, HAYNES®282®alloy exhibits superior weldability and fabricability. Machinability is similar to that of Waspaloy.
Heat Treatment
HAYNES®282®alloy is provided in the solution-annealed condition, in which it is readily formable. The typical solution-annealing temperature is in the range of 2050 to 2100°F (1121 to 1149°C). After component fabrication, an age hardening treatment is required to put the alloy into the high-strength condition. The standard two-step treatment includes 1850°F (1010°C) / 2 hours / AC (air cool) + 1450°F (788°C) / 8 hours / AC, but alternative heat treatments are available to optimize properties for specific performance requirements or for manufacturability.
NOTE:The heat treatment for Advanced Ultra-Supercritical (A-USC), Supercritical CO2, and Other ASME Boiler Code Applications is different from the standard heat treatment.
Product Forms
HAYNES®282®alloy is available in a full range of product forms and sizes, including plate, sheet and coil products from foil thickness up to cross-sections greater than 2” (>50mm) thick; Bar and wire from up to 9” in diameter, Reforge billet and ingot products from 4” up to 20” (100-500mm) diameters; and seamless and welded Pipe and tube in some standard sizes. Vacuum castings have also been produced for various applications, and powder products are available to support many Additive Manufacturing methods.
Applications
The features of HAYNES®282®alloy make it suitable for critical gas turbine applications found in the combustors, turbine and exhaust sections, and nozzle components. Fabrication methods commonly employed include sheet and plate fabrications, seamless and flash butt-welded rings, closed die forgings and components directly machined from bar and heavy plate blanks. In industrial gas turbines, HAYNES®282®alloy is defining performance standards for combustors and transition sections, and other hot-gas-path components requiring exceptional creep life and low cycle fatigue (LCF) resistance. Automotive turbocharger applications, such as seals and high temperature springs, benefit from the superior high-temperature properties.
HAYNES®282®alloy is also a strong candidate for use in Advanced Ultra-Supercritical (A-USC) boiler and steam turbines, Supercritical CO2power cycle, and concentrating solar power plant, where creep life is required to surpass 100,000 hours at 14.5 ksi (100 MPa) at 1400°F (760°C). ASME Code Case 3024 covers a new single-step age-hardening treatment for HAYNES®282®alloy for use in Advanced Ultra-Supercritical (A-USC) and Supercritical CO2and other ASME Boiler Code applications.
*Please contact ourtechnical support teamif you have technical questions about this alloy.
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Nominal Composition
| Weight % | |
| Nickel | Balance |
| Chromium | 20 |
| Cobalt | 10 |
| Molybdenum | 8.5 |
| Titanium | 2.1 |
| Aluminum | 1.5 |
| Iron | 1.5 max. |
| Manganese | 0.3 max. |
| Silicon | 0.15 max. |
| Carbon | 0.06 |
| Boron | 0.005 |
Creep and Stress Rupture Strength
HAYNES®282®alloy possesses exceptional creep strength in the temperature range 1200-1700°F (649-927°C). For example, it has superior strength to 263 alloy at all temperatures in this range in terms of both 1% creep and rupture. Despite the exceptional fabricability of 282®alloy, it compares well to less fabricable alloys developed for high creep strength. For example, its rupture strength is equivalent to the well-known, but less fabricable, Waspaloy alloy at the lower temperatures in this range and actually has a distinct advantage at the higher end of the temperature range. In terms of 1% creep strength, 282®alloy is superior to Waspaloy alloy across the entire temperature range. At temperatures of 1500-1700°F (816-927°C), 282®alloy has creep strength equivalent to even that of R-41 alloy, an alloy developed for excellent creep strength, but notorious for poor fabricability.
1% Creep Strength of Various Superalloys
in the Temperature Range 1500-1700°F (816-927°C)
Comparative Creep-Rupture Properties of Gamma-Prime Strengthened Alloys* (Sheet)
| Property | Test Temperature | 263 | R-41 | Waspaloy | 282® | |||||
| Stress-to-Produce 1%Creep in 100 h ksi (MPa) | °F | °C | ksi | MPa | ksi | MPa | ksi | MPa | ksi | MPa |
| 1200 | 649 | 75 | 517 | 105 | 724 | 81 | 558 | – | – | |
| 1300 | 704 | 54 | 372 | 75 | 517 | 63 | 434 | 72 | 496 | |
| 1400 | 760 | 37 | 255 | 53 | 365 | 41 | 283 | 48 | 331 | |
| 1500 | 816 | 22 | 152 | 32 | 221 | 25 | 172 | 32 | 221 | |
| 1600 | 871 | 11 | 76 | 17 | 117 | 15 | 103 | 18 | 124 | |
| 1700 | 927 | 6 | 41 | 8 | 55 | 6 | 41 | 9 | 62 | |
| Stress-to-Produce 1%Creep in 1000 h ksi (MPa) | 1200 | 649 | 58 | 400 | 84 | 579 | 67 | 462 | 79 | 545 |
| 1300 | 704 | 41 | 283 | 59 | 407 | 46 | 317 | 53 | 365 | |
| 1400 | 760 | 25 | 172 | 34 | 234 | 28 | 193 | 35 | 241 | |
| 1500 | 816 | 12 | 83 | 18 | 124 | 16 | 110 | 21 | 145 | |
| 1600 | 871 | 6 | 41 | 9 | 62 | 7 | 48 | 10 | 69 | |
| 1700 | 927 | 3 | 21 | 5 | 34 | 3 | 21 | 5 | 34 | |
| Stress-to-ProduceRupture in 100 h ksi (MPa) | 1200 | 649 | 77 | 531 | 110 | 758 | 92 | 634 | – | – |
| 1300 | 704 | 60 | 414 | 85 | 586 | 75 | 517 | 75 | 517 | |
| 1400 | 760 | 42 | 290 | 63 | 434 | 53 | 365 | 56 | 386 | |
| 1500 | 816 | 25 | 172 | 39 | 269 | 32 | 221 | 37 | 255 | |
| 1600 | 871 | 14 | 97 | 23 | 159 | 19 | 131 | 22 | 152 | |
| 1700 | 927 | 7 | 48 | 13 | 90 | 10 | 69 | 12 | 83 | |
| Stress-to-ProduceRupture in 1000 h ksi (MPa) | 1200 | 649 | 64 | 441 | 90 | 621 | 80 | 552 | 80 | 552 |
| 1300 | 704 | 45 | 310 | 68 | 469 | 58 | 400 | 56 | 386 | |
| 1400 | 760 | 28 | 193 | 43 | 296 | 36 | 248 | 38 | 262 | |
| 1500 | 816 | 15 | 103 | 24 | 165 | 20 | 138 | 23 | 159 | |
| 1600 | 871 | 7 | 48 | 13 | 90 | 7 | 48 | 12 | 83 | |
| 1700 | 927 | 4 | 28 | 7 | 48 | 3 | 21 | 6 | 41 | |
*Age-hardened (263 alloy: 1472°F (800°C)/8h/AC, Waspaloy alloy : 1825°F (996°C)/2h/AC + 1550°F (843°C)/4h/AC + 1400°F
(760°C)/16h/AC, R-41 alloy: 1650°F (899°C)/4h/AC, 282®alloy: 1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC)
Solution Annealed* + Age Hardened** 282®Sheet
| Test Temperature | Creep | Approximate Initial Stress to Produce Specified Creep in: | ||||
| 100 h | 1,000 h | |||||
| °F | °C | % | ksi | MPa | ksi | MPa |
| 1200 | 649 | 0.5 | – | – | 78 | 538 |
| 1 | – | – | 79 | 545 | ||
| Rupture | – | – | 80 | 552 | ||
| 1300 | 704 | 0.5 | 70 | 483 | 51 | 352 |
| 1 | 72 | 496 | 53 | 365 | ||
| Rupture | 75 | 517 | 56 | 386 | ||
| 1400 | 760 | 0.5 | 46 | 317 | 33 | 228 |
| 1 | 48 | 331 | 35 | 241 | ||
| Rupture | 56 | 386 | 38 | 262 | ||
| 1500 | 816 | 0.5 | 30 | 207 | 18 | 124 |
| 1 | 32 | 221 | 21 | 145 | ||
| Rupture | 37 | 225 | 23 | 159 | ||
| 1600 | 871 | 0.5 | 17 | 117 | 9.0 | 62 |
| 1 | 18 | 124 | 10 | 69 | ||
| Rupture | 22 | 152 | 12 | 83 | ||
| 1700 | 927 | 0.5 | 8.3 | 57 | 4.2 | 29 |
| 1 | 9.0 | 62 | 5.0 | 34 | ||
| Rupture | 12 | 83 | 6.0 | 41 | ||
| 1800 | 982 | 0.5 | 3.6 | 25 | – | – |
| 1 | 4.2 | 29 | 1.8 | 12 | ||
| Rupture | 5.5 | 38 | 2.5 | 17 | ||
*2100°F (1149°C)
**1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC
Solution Annealed* + Age Hardened** 282®Plate
| Test Temperature | Creep | Approximate Initial Stress to Produce Specified Creep in: | ||||||
| 100 h | 1,000 h | 10,000 h | ||||||
| °F | °C | % | ksi | MPa | ksi | MPa | ksi | MPa |
| 1200 | 1200 | 0.5 | – | – | 81 | 558 | – | – |
| 1 | – | – | 82 | 565 | – | – | ||
| Rupture | – | – | 85 | 586 | 64 | 441 | ||
| 1300 | 704 | 0.5 | 73 | 503 | 53 | 365 | – | – |
| 1 | 75 | 517 | 55 | 379 | – | – | ||
| Rupture | 80 | 552 | 61 | 421 | 45 | 310 | ||
| 1400 | 760 | 0.5 | 49 | 338 | 35 | 241 | – | – |
| 1 | 50 | 345 | 36 | 248 | – | – | ||
| Rupture | 57 | 393 | 41 | 283 | 27 | 186 | ||
| 1500 | 816 | 0.5 | 32 | 221 | 20 | 138 | – | – |
| 1 | 34 | 234 | 22 | 152 | – | – | ||
| Rupture | 38 | 262 | 25 | 172 | 14 | 97 | ||
| 1600 | 871 | 0.5 | 18 | 124 | 11 | 76 | – | – |
| 1 | 19 | 131 | 12 | 83 | – | – | ||
| Rupture | 23 | 159 | 14 | 97 | 8 | 55 | ||
| 1700 | 927 | 0.5 | 9.4 | 65 | 4.8 | 33 | – | – |
| 1 | 10 | 69 | 5.2 | 36 | – | – | ||
| Rupture | 13 | 90 | 7.0 | 48 | 3.7 | 26 | ||
| 1800 | 982 | 0.5 | 4.2 | 29 | 1.8 | 12 | – | – |
| 1 | 4.6 | 32 | 2.0 | 14 | – | – | ||
| Rupture | 6.2 | 43 | 3.6 | 25 | – | – | ||
*2075°F (1135°C)
**1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC
Strain Age Cracking Resistance
Resistance to strain-age cracking is a major attribute of HAYNES®282®alloy. As indicated in the chart below, 282®alloy approaches the well-known 263 alloy in this regard, and possesses much higher resistance to strain-age cracking than other nickel superalloys in its strength class (Waspaloy and R-41 alloys).
Resistance to Strain-Age Cracking as Measured by
the Controlled Heating-Rate Tensile (CHRT) Test
The CHRT test is an excellent measure of the resistance of gamma-prime strengthened superalloys to strain-age cracking. Samples of thickness 0.063” (1.6 mm), originally in the solution annealed condition, are heated to the test temperature at a rate of 25-30°F (14-17°C) per minute, this being representative of a typical post-weld heat treatment. Tests are performed for each alloy over a range of temperatures. The susceptibility to strain-age cracking is related to the minimum tensile elongation observed within that temperature range (the higher the minimum elongation, the greater is the resistance to strain-age cracking).
For further information regarding this test, please refer to:
1. R.W. Fawley, M. Prager, J.B. Carlton, and G. Sines,WRC Bulletin No. 150, Welding Research Council, New York, 1970.
2. M.D. Rowe, “Ranking the Resistance of Wrought Superalloys to Strain-Age Cracking”,Welding Journal, 85 (2), pp. 27-s to 34-s, 2006.
Tensile Properties
Solution-annealed and Age-hardened Sheet*
| Temperature | 0.2% Yield Strength | Ultimate TensileStrength | Elongation | |||
| °F | °C | ksi | MPa | ksi | MPa | % |
| RT | RT | 101.4 | 699 | 164.2 | 1132 | 30 |
| 1000 | 538 | 91.6 | 632 | 139.3 | 960 | 36 |
| 1200 | 649 | 91.5 | 631 | 145.7 | 1005 | 27 |
| 1300 | 704 | 90.5 | 624 | 136.5 | 941 | 24 |
| 1400 | 760 | 88.7 | 612 | 120.8 | 833 | 22 |
| 1500 | 816 | 82.3 | 567 | 100.3 | 692 | 24 |
| 1600 | 871 | 72.6 | 501 | 80.5 | 555 | 31 |
| 1700 | 927 | 43.9 | 303 | 50.2 | 346 | 37 |
| 1800 | 982 | 18.7 | 129 | 24.5 | 169 | 61 |
Solution-annealed and Age-hardened Plate*
| Temperature | 0.2% Yield Strength | Ultimate TensileStrength | Elongation | Reduction of Area | |||
| °F | °C | ksi | MPa | ksi | MPa | % | % |
| RT | RT | 103.7 | 715 | 166.4 | 1147 | 30 | 31 |
| 1000 | 538 | 94.1 | 649 | 143.8 | 991 | 34 | 36 |
| 1200 | 649 | 93.2 | 643 | 152.0 | 1048 | 31 | 31 |
| 1300 | 704 | 94.2 | 649 | 141.8 | 978 | 29 | 28 |
| 1400 | 760 | 91.1 | 628 | 124.2 | 856 | 22 | 24 |
| 1500 | 816 | 83.4 | 575 | 102.8 | 709 | 28 | 31 |
| 1600 | 871 | 73.6 | 507 | 82.1 | 566 | 31 | 42 |
| 1700 | 927 | 44.9 | 310 | 52.1 | 359 | 50 | 69 |
| 1800 | 982 | 19.1 | 132 | 25.3 | 174 | 71 | 91 |
*Solution Annealing: Sheet at 2100°F (1149°C), Plate at 2075°F (1135°C)
Age-Hardening: 1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC
RT= Room Temperature
Comparative Yield Strengths of Age-hardened* Sheet Material at Room Temperature and 1600°F (871°C)
At room temperature, HAYNES®282®alloy has a higher yield strength than 263 alloy, but is not as strong as R-41 and Waspaloy alloys, which contain higher gamma-prime phase contents. However, at higher temperatures typical of gas turbine component applications, 282 alloy exhibits excellent yield strength, surpassing that of 263 and Waspaloy, and approaching that of the less fabricable R-41 alloy.
*Age-hardened (263 alloy: 1472°F (800°C)/8h/AC, Waspaloy alloy : 1825°F (996°C)/2h/AC + 1550°F (843°C)/4h/AC + 1400°F (760°C)/16h/AC, R-41 alloy: 1650°F (899°C)/4h/AC, 282®alloy: 1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC)
Hardness
Average Room Temperature Hardness of Mill Annealed HAYNES®282®Alloy
| Form | Solution Annealed* | Age-hardened** |
| – | HRBW | HRC |
| Sheet | 90 | 30 |
| Plate | 93 | 32 |
| Bar | 86 | 29 |
*Solution Annealing: Sheet at 2100°F (1149°C), Plate and Bar at 2075°F (1135°C)
**Age-hardening: 1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC
HRBW = Hardness Rockwell “B”, Tungsten Indentor.
HRC = Hardness Rockewll “C”.
Aging Kinetics
A key attribute of HAYNES®282®alloy is its sluggish gamma-prime precipitation kinetics which are highly desirable for improved fabricability for two main reasons. One, the formation of gamma-prime during heat treatment is a key factor in strain age-cracking. Two, it allows sufficient time for the alloy to cool after solution annealing without formation of the gamma-prime phase which would reduce cold formability. The chart below indicates the increase in the room-temperature hardness (an indicator of the precipitation of the gamma-prime phase) with increasing aging time at 1500°F (816°C) for 282 alloy and several other gamma-prime strengthened alloys. 282 alloy was found to have a sluggish response, similar to the readily fabricable 263 alloy. The less fabricable R-41 and Waspaloy alloys hardened much more quickly.
Isothermal Hardening Kinetics
Temperature: 1500°F (816°C), Starting Material: Solution Annealed Sheet
Oxidation Resistance
Environment: Flowing Air
Test Duration: 1,008 h
Number of Cycles: 6
Cycle Length: 168 h
Temperatures: 1600, 1700, 1800°F (871, 927, 982°C)
Metal Loss = (A-B)/2
Average Internal Penetration = C
Maximum Internal Penetration = D
Average Metal Affected = Metal Loss + Average Internal Penetration
Maximum Metal Affected = Metal Loss + Maximum Internal Penetration
Comparative Oxidation Resistance in Flowing Air, 1008 Hours
| Alloy | 1600°F (871°C) | 1700°F (927°C) | 1800°F (982°C) | |||||||||
| Metal Loss | Avg. Met. Aff. | Metal Loss | Avg. Met. Aff. | Metal Loss | Avg. Met. Aff. | |||||||
| - | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm |
| 263 | 0.1 | 3 | 0.4 | 10 | 0.2 | 5 | 0.7 | 18 | 0.9 | 23 | 5.0 | 127 |
| 282® | 0.2 | 5 | 0.6 | 15 | 0.1 | 3 | 1.1 | 28 | 0.2 | 5 | 1.8 | 46 |
| R‐41 | 0.2 | 5 | 0.8 | 20 | 0.2 | 5 | 1.5 | 38 | 0.2 | 5 | 2.9 | 74 |
| Waspaloy | 0.3 | 8 | 1.4 | 36 | 0.3 | 8 | 3.4 | 86 | 0.7 | 18 | 5.0 | 127 |
Dynamic Oxidation Testing (Burner Rig)
Burner rig oxidation tests were conducted by exposing, in a rotating holder, samples 0.375 inch x 2.5 inches x thickness (9.5mm x 64mm x thickness) to the products of combustion of fuel oil (2 parts No. 1 and 1 part No. 2), burned at an air to fuel ratio of about 50:1. The gas velocity was about 0.3 mach. Samples were automatically removed from the gas stream every 30 minutes and fan cooled to less than 500°F (260°C) and then reinserted into the flame tunnel.
| Vickers Diamond Pyramid Hardness (Rockwell C/BW Hardness) | ||||||||||
| 70°F (20°C) | 800°F (425°C) | 1000°F (540°C) | 1200°F (650°C) | 1400°F (760°C) | ||||||
| Solution Treated | 251 | 22 HRC | 171 | 87 HRBW | 160 | 83 HRBW | 150 | 80 HRBW | 134 | 74 HRBW |
| 15% Cold-Work | 348 | 35 HRC | 254 | 23 HRC | 234 | 97 HRBW | 218 | 95 HRBW | – | – |
| 20% Cold-Work | 401 | 41 HRC | 318 | 32 HRC | 284 | 27 HRC | 268 | 25 HRC | – | – |
| 25% Cold-Work | 482 | 48 HRC | 318 | 32 HRC | 200 | 30 HRC | 286 | 28 HRC | – | – |
Thermal Stability
Comparative Thermal Stability Data of Gamma-Prime Strengthened Alloys (Sheet)
Room Temperature Tensile Data – Exposed* at 1200°F (649°C) for 1,000 hours
HAYNES® 282® alloy Thermal Stability Room Temperature Tensile Data – Exposed* at 1200°F (649°C) for 1,000 hours
| Alloy | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||
| – | ksi | MPa | ksi | MPa | % |
| 263 | 113.6 | 783 | 166.6 | 1149 | 21.3 |
| 282® | 112.9 | 778 | 172.8 | 1191 | 25.8 |
| Waspaloy | 136.5 | 941 | 196.2 | 1353 | 22.6 |
| R-41 | 141.9 | 979 | 189.4 | 1306 | 8.9 |
Room Temperature Tensile Data – Exposed* at 1400°F (760°C) for 1,000 hours
| Alloy | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||
| – | ksi | MPa | ksi | MPa | % |
| 263 | 92.7 | 639 | 160.3 | 1105 | 32.4 |
| 282® | 104.1 | 718 | 170.5 | 1176 | 22.8 |
| Waspaloy | 112.9 | 779 | 182.4 | 1258 | 24.0 |
| R-41 | 167.0 | 1151 | 197.2 | 1359 | 1.9 |
Room Temperature Tensile Data – Exposed* at 1500°F (816°C) for 1,000 hours
| Alloy | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||
| – | ksi | MPa | ksi | MPa | % |
| 263 | 71.4 | 492 | 144.0 | 993 | 34.7 |
| 282® | 91.9 | 634 | 159.8 | 1102 | 22.3 |
| Waspaloy | 103.5 | 714 | 170.1 | 1173 | 22.8 |
| R-41 | 137.9 | 951 | 177.5 | 1224 | 1.8 |
Room Temperature Tensile Data – Exposed* at 1600°F (871°C) for 1,000 hours
| Alloy | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||
| – | ksi | MPa | ksi | MPa | % |
| 263 | 55.0 | 379 | 125.2 | 863 | 40.9 |
| 282® | 72.9 | 505 | 141.4 | 975 | 24.2 |
| Waspaloy | 84.6 | 584 | 149.3 | 1030 | 18.1 |
| R-41 | 103.8 | 715 | 148.0 | 1021 | 2.6 |
*Thermal exposure was applied to samples in the age-hardened condition (263 alloy: 1472°F (800°C)/8h/AC,Waspaloy alloy : 1825°F (996°C)/2h/AC + 1550°F (843°C)/4h/AC + 1400°F (760°C)/16h/AC,R-41 alloy: 1650°F (899°C)/4h/AC, 282®alloy: 1850°F (1010°C)/2h/AC + 1450°F (788°C)/8h/AC)
Effect of Thermal Exposure on Yield Strength (At the Exposure Temperature)
Room Temperature Properties of HAYNES®282®Plate after Thermal Exposure*
| 曝露温度 | 曝露時間 | 0.2% 耐力 | 極限引張強さ | 伸び | 絞り | |||
| °F | °C | h | ksi | MPa | ksi | MPa | % | % |
| 1200 | 649 | 0 | 102 | 705 | 167 | 1152 | 30 | 33 |
| 100 | 116 | 798 | 181 | 1247 | 27 | 31 | ||
| 1,000 | 118 | 814 | 181 | 1248 | 26 | 29 | ||
| 4,000 | 120 | 830 | 182 | 1255 | 26 | 29 | ||
| 8,000 | 119 | 819 | 183 | 1264 | 24 | 27 | ||
| 16,000 | 118 | 816 | 183 | 1260 | 23 | 25 | ||
| 1400 | 760 | 0 | 102 | 705 | 167 | 1152 | 30 | 33 |
| 100 | 110 | 759 | 177 | 1223 | 27 | 30 | ||
| 1,000 | 108 | 742 | 178 | 1226 | 26 | 29 | ||
| 4,000 | 103 | 707 | 175 | 1205 | 21 | 22 | ||
| 8,000 | 100 | 690 | 173 | 1191 | 20 | 21 | ||
| 16,000 | 96 | 658 | 168 | 1161 | 20 | 19 | ||
| 1600 | 871 | 0 | 102 | 705 | 167 | 1152 | 30 | 33 |
| 100 | 90 | 618 | 162 | 1114 | 31 | 36 | ||
| 1,000 | 77 | 533 | 155 | 1065 | 30 | 30 | ||
| 4,000 | 71 | 487 | 148 | 1022 | 32 | 31 | ||
| 8,000 | 69 | 473 | 146 | 1006 | 32 | 31 | ||
| 16,000 | 66 | 452 | 142 | 978 | 33 | 32 | ||
*Thermal exposure was applied to the samples in the age-hardened condition (1850ºF(1010ºC)/2h/AC+1450ºF(788ºC)/8h/AC)
Physical Properties
| Physical Property* | British Units | Metric Units | ||
| Density (Solution Annealed) | 0.299 lb/in3 | 8.27 g/cm3 | ||
| Density (Age-Hardened) | 0.300 lb/in3 | 8.29 g/cm3 | ||
| Melting Range | 2370-2510°F | 1300-1375°C | ||
| Gamma-Prime Solvus | 1827°F | 997°C | ||
| Specific Heat | RT | 0.104 Btu/lb.°F | RT | 436 J/Kg.°C |
| 200°F | 0.110 Btu/lb.°F | 100°C | 463 J/Kg.°C | |
| 300°F | 0.114 Btu/lb.°F | 200°C | 494 J/Kg.°C | |
| 400°F | 0.118 Btu/lb.°F | 300°C | 522 J/Kg.°C | |
| 500°F | 0.122 Btu/lb.°F | 400°C | 544 J/Kg.°C | |
| 600°F | 0.125 Btu/lb.°F | 500°C | 563 J/Kg.°C | |
| 700°F | 0.128 Btu/lb.°F | 600°C | 581 J/Kg.°C | |
| 800°F | 0.131 Btu/lb.°F | 700°C | 594 J/Kg.°C | |
| 900°F | 0.134 Btu/lb.°F | 800°C | 650 J/Kg.°C | |
| 1000°F | 0.136 Btu/lb.°F | 900°C | 668 J/Kg.°C | |
| 1100°F | 0.138 Btu/lb.°F | 1000°C | 676 J/Kg.°C | |
| 1200°F | 0.140 Btu/lb.°F | - | - | |
| 1300°F | 0.142 Btu/lb.°F | - | - | |
| 1400°F | 0.150 Btu/lb.°F | - | - | |
| 1500°F | 0.156 Btu/lb.°F | - | - | |
| 1600°F | 0.158 Btu/lb.°F | - | - | |
| 1700°F | 0.160 Btu/lb.°F | - | - | |
| 1800°F | 0.161 Btu/lb.°F | - | - | |
| Thermal Conductivity | RT | 72 Btu-in/ft2-hr.°F | RT | 10.3 W/m.°C |
| 200°F | 82 Btu-in/ft2-hr.°F | 100°C | 12.0 W/m.°C | |
| 300°F | 90 Btu-in/ft2-hr.°F | 200°C | 14.1 W/m.°C | |
| 400°F | 99 Btu-in/ft2-hr.°F | 300°C | 16.3 W/m.°C | |
| 500°F | 107 Btu-in/ft2-hr.°F | 400°C | 18.5 W/m.°C | |
| 600°F | 116 Btu-in/ft2-hr.°F | 500°C | 20.5 W/m.°C | |
| 700°F | 124 Btu-in/ft2-hr.°F | 600°C | 22.6 W/m.°C | |
| 800°F | 132 Btu-in/ft2-hr.°F | 700°C | 24.8 W/m.°C | |
| 900°F | 140 Btu-in/ft2-hr.°F | 800°C | 26.1 W/m.°C | |
| 1000°F | 148 Btu-in/ft2-hr.°F | 900°C | 27.3 W/m.°C | |
| 1100°F | 156 Btu-in/ft2-hr.°F | 1000°C | 28.9 W/m.°C | |
| 1200°F | 164 Btu-in/ft2-hr.°F | - | - | |
| 1300°F | 173 Btu-in/ft2-hr.°F | - | - | |
| 1400°F | 177 Btu-in/ft2-hr.°F | - | - | |
| 1500°F | 182 Btu-in/ft2-hr.°F | - | - | |
| 1600°F | 187 Btu-in/ft2-hr.°F | - | - | |
| 1700°F | 192 Btu-in/ft2-hr.°F | - | - | |
| 1800°F | 199 Btu-in/ft2-hr.°F | - | - | |
| Thermal Diffusivity | RT | 0.112 ft2/h | RT | 0.0288 cm2/s |
| 200°F | 0.121 ft2/h | 100°C | 0.0315 cm2/s | |
| 300°F | 0.128 ft2/h | 200°C | 0.0348 cm2/s | |
| 400°F | 0.135 ft2/h | 300°C | 0.0381 cm2/s | |
| 500°F | 0.143 ft2/h | 400°C | 0.0413 cm2/s | |
| 600°F | 0.150 ft2/h | 500°C | 0.0444 cm2/s | |
| 700°F | 0.156 ft2/h | 600°C | 0.0473 cm2/s | |
| 800°F | 0.163 ft2/h | 700°C | 0.0509 cm2/s | |
| 900°F | 0.170 ft2/h | 800°C | 0.0488 cm2/s | |
| 1000°F | 0.176 ft2/h | 900°C | 0.0498 cm2/s | |
| 1100°F | 0.183 ft2/h | 1000°C | 0.0521 cm2/s | |
| 1200°F | 0.190 ft2/h | - | - | |
| 1300°F | 0.197 ft2/h | - | - | |
| 1400°F | 0.192 ft2/h | - | - | |
| 1500°F | 0.190 ft2/h | - | - | |
| 1600°F | 0.192 ft2/h | - | - | |
| 1700°F | 0.195 ft2/h | - | - | |
| 1800°F | 0.200 ft2/h | - | - | |
| Electrical Resistivity | RT | 49.7 µohm.in | RT | 126.1 µohm.cm |
| 200°F | 50.3 µohm.in | 100°C | 127.8 µohm.cm | |
| 300°F | 50.7 µohm.in | 200°C | 129.9 µohm.cm | |
| 400°F | 51.2 µohm.in | 300°C | 131.8 µohm.cm | |
| 500°F | 51.6 µohm.in | 400°C | 133.4 µohm.cm | |
| 600°F | 52.0 µohm.in | 500°C | 135.0 µohm.cm | |
| 700°F | 52.3 µohm.in | 600°C | 136.2 µohm.cm | |
| 800°F | 52.7 µohm.in | 700°C | 135.5 µohm.cm | |
| 900°F | 53.0 µohm.in | 800°C | 134.5 µohm.cm | |
| 1000°F | 53.5 µohm.in | 900°C | 132.6 µohm.cm | |
| 1100°F | 53.7 µohm.in | 1000°C | 129.9 µohm.cm | |
| 1200°F | 53.4 µohm.in | - | - | |
| 1300°F | 53.3 µohm.in | - | - | |
| 1400°F | 53.1 µohm.in | - | - | |
| 1500°F | 52.9 µohm.in | - | - | |
| 1600°F | 52.5 µohm.in | - | - | |
| 1700°F | 51.9 µohm.in | - | - | |
| 1800°F | 51.3 µohm.in | - | - | |
| Mean Coefficient of Thermal Expansion | RT | - | RT | - |
| 200°F | 6.7 µin/in.°F | 100°C | 12.1 µm/m.°C | |
| 300°F | 6.8 µin/in.°F | 200°C | 12.4 µm/m.°C | |
| 400°F | 6.9 µin/in.°F | 300°C | 12.8 µm/m.°C | |
| 500°F | 7.0 µin/in.°F | 400°C | 13.1 µm/m.°C | |
| 600°F | 7.1 µin/in.°F | 500°C | 13.5 µm/m.°C | |
| 700°F | 7.2 µin/in.°F | 600°C | 13.7 µm/m.°C | |
| 800°F | 7.3 µin/in.°F | 700°C | 14.2 µm/m.°C | |
| 900°F | 7.5 µin/in.°F | 800°C | 14.9 µm/m.°C | |
| 1000°F | 7.5 µin/in.°F | 900°C | 15.9 µm/m.°C | |
| 1100°F | 7.6 µin/in.°F | 1000°C | 16.9 µm/m.°C | |
| 1200°F | 7.8 µin/in.°F | - | - | |
| 1300°F | 7.9 µin/in.°F | - | - | |
| 1400°F | 8.1 µin/in.°F | - | - | |
| 1500°F | 8.4 µin/in.°F | - | - | |
| 1600°F | 8.7 µin/in.°F | - | - | |
| 1700°F | 9.0 µin/in.°F | - | - | |
| 1800°F | 9.3 µin/in.°F | - | - | |
| Dynamic Modulusof Elasticity | RT | 31.5 x 106 psi | RT | 217 GPa |
| 200°F | 31.0 x 106 psi | 100°C | 213 GPa | |
| 300°F | 30.6 x 106 psi | 200°C | 209 GPa | |
| 400°F | 30.2 x 106 psi | 300°C | 202 GPa | |
| 500°F | 29.7 x 106 psi | 400°C | 196 GPa | |
| 600°F | 29.2 x 106 psi | 500°C | 190 GPa | |
| 700°F | 28.7 x 106 psi | 600°C | 183 GPa | |
| 800°F | 28.2 x 106 psi | 700°C | 175 GPa | |
| 900°F | 27.7 x 106 psi | 800°C | 166 GPa | |
| 1000°F | 27.2 x 106 psi | 900°C | 154 GPa | |
| 1100°F | 26.6 x 106 psi | 1000°C | 140 GPa | |
| 1200°F | 26.0 x 106 psi | - | - | |
| 1300°F | 25.4 x 106 psi | - | - | |
| 1400°F | 24.7 x 106 psi | - | - | |
| 1500°F | 23.8 x 106 psi | - | - | |
| 1600°F | 22.9 x 106 psi | - | - | |
| 1700°F | 21.7 x 106 psi | - | - | |
| 1800°F | 20.6 x 106 psi | - | - | |
| Dynamic Shear Modulus | RT | 11.9 x 106 psi | RT | 82 GPa |
| 200°F | 11.7 x 106 psi | 100°C | 80 GPa | |
| 300°F | 11.5 x 106 psi | 200°C | 78 GPa | |
| 400°F | 11.3 x 106 psi | 300°C | 76 GPa | |
| 500°F | 11.1 x 106 psi | 400°C | 73 GPa | |
| 600°F | 10.9 x 106 psi | 500°C | 71 GPa | |
| 700°F | 10.7 x 106 psi | 600°C | 68 GPa | |
| 800°F | 10.6 x 106 psi | 700°C | 65 GPa | |
| 900°F | 10.4 x 106 psi | 800°C | 61 GPa | |
| 1000°F | 10.1 x 106 psi | 900°C | 57 GPa | |
| 1100°F | 9.9 x 106 psi | 1000°C | 51 GPa | |
| 1200°F | 9.7 x 106 psi | - | - | |
| 1300°F | 9.4 x 106 psi | - | - | |
| 1400°F | 9.1 x 106 psi | - | - | |
| 1500°F | 8.8 x 106 psi | - | - | |
| 1600°F | 8.4 x 106 psi | - | - | |
| 1700°F | 8.0 x 106 psi | - | - | |
| 1800°F | 7.6 x 106 psi | - | - | |
| Poisson’s Ratio | RT | 0.319 | RT | 0.319 |
| 200°F | 0.325 | 100°C | 0.326 | |
| 300°F | 0.330 | 200°C | 0.335 | |
| 400°F | 0.335 | 300°C | 0.335 | |
| 500°F | 0.335 | 400°C | 0.337 | |
| 600°F | 0.335 | 500°C | 0.341 | |
| 700°F | 0.337 | 600°C | 0.346 | |
| 800°F | 0.338 | 700°C | 0.352 | |
| 900°F | 0.340 | 800°C | 0.355 | |
| 1000°F | 0.342 | 900°C | 0.357 | |
| 1100°F | 0.346 | 1000°C | 0.363 | |
| 1200°F | 0.350 | - | - | |
| 1300°F | 0.353 | - | - | |
| 1400°F | 0.355 | - | - | |
| 1500°F | 0.355 | - | - | |
| 1600°F | 0.355 | - | - | |
| 1700°F | 0.359 | - | - | |
| 1800°F | 0.363 | - | - | |
*Age-hardened 1850°F/2h/AC + 1450°F/8h/AC
RT= Room Temperature
Coefficient of Thermal Expansion of Gamma-Prime Strengthened Alloys* (Sheet)
Low Cycle Fatigue
Low-Cycle Fatigue Data – HAYNES®282®Sheet* (Thickness 0.125”, 3.2 mm)
*Age-hardened at 1850ºF(1010ºC)/2h/AC + 1450ºF(788ºC)/8h/AC
Comparative Low-Cycle Fatigue Data
Welding
As a result of its high resistance to strain-age cracking, HAYNES®282®alloy is much more weldable than other alloys of similar strength. The preferred welding processes are gas tungsten arc (GTAW or TIG) and gas metal arc (GMAW or MIG), using 282 alloy bare filler wire. If shielded metal arc welding (SMAW) of HAYNES®282®alloy is necessary, please contact the technical support group at Haynes International for information on the most appropriate coated electrode. Submerged arc welding (SAW) of HAYNES®282®alloy is not recommended due to the high heat input and increased weld restraint associated with this process.
Filler Metal Selection
It is recommended that bare, filler metal of a matching composition be used to join HAYNES 282 alloy to itself, using either the GTAW or GMAW process. HAYNES®282®alloy filler metal can also be used for dissimilar joining, and/or repair welding, of other age-hardenable, nickel superalloys.Pleaseclick hereor see theHaynes Welding SmartGuidefor more information.
Base Metal Preparation
HAYNES®282®alloy should be welded in the solution-annealed condition, before it is subjected to the age-hardening treatment. The joint surface and adjacent areas should be thoroughly cleaned, to reveal bright, metallic surfaces, before welding. All grease, oil, crayon marks, sulfur compounds, and other foreign matter should be removed.
Preheating, Interpass Temperatures, and Postweld Heat Treatment
Preheating of HAYNES®282®alloy is not required, as long as the base metal to be welded is above 32°F (0°C). Interpass temperatures should be less than 200°F (93°C). Auxiliary cooling methods may be used between weld passes, provided that these do not introduce contaminants.
After welding, HAYNES®282®alloy will normally be subjected to its age-hardening treatment, which comprises 2 hours at 1850°F (1010°C), air cool + 8 hours at 1450°F (788°C), air cool. The heat up rate to 1850°F should be as fast as possible, within the capability of the furnace being used.
The use of a full solution anneal (typically at 2075°F/1135°C) after welding and prior to the two step age-hardening treatment is neither required nor prohibited. For heavy section weldments, or complex weldments with high residual stress, a full solution anneal prior to the age-hardening treatment may be advisable.
NOTE:For information regarding ASME Advanced – Ultra Super Critical (A-USC) applications, please contact Vinay Deodeshmukh (765-456-6212;VDeodeshmukh@haynesintl.com).
Nominal Welding Parameters* (Sheet)
These are provided as a guide for performing typical operations and are based upon the welding conditions used in the laboratories of Haynes International. For further information, please contact the technical support group.
| Manual Gas Tungsten Arc Welding V-Groove or U-Groove – All thicknesses 0.125” (3.2 mm) or greater | |
| Technique | Stringer Bead |
| Current (DCEN), amperes | 150-250 |
| Voltage, volts | 11-14 |
| Filler Metal | 0.125” (3.2 mm) diameter 282®alloy |
| Travel Speed, in/min (mm/min | 4-6 (102-152) |
| Electrode Size – EWTH-2, in (mm) | 0.125” (3.2 mm) diameter |
| Electrode Shape | 30° included |
| Cup Size | #8 or larger |
| Gas Type | Argon |
| Shielding Gas Flow, CFH (l/min) | 30-35 (14.2-16.5) |
| Backing Gas Flow, CFH (l/min) | 10 (4.7) for root pass |
| Preheat | Ambient |
| Maximum Interpass Temperature, °F (°C) | 200 (93) |
| Automatic Gas Tungsten Arc Welding Square Butt Joint – No filler metal added – Material thickness 0.125” (3.2 mm) | |
| Current (DCEN), amperes | 275 |
| Voltage, volts | 9.5 |
| Travel Speed, in/min (mm/min) | 12 (305) |
| Electrode Size – EWTH-2, in (mm) | 0.125 (3.2) diameter |
| Electrode Shape | 45° included |
| Cup Size | #8 |
| Shielding Gas Flow, CFH (l/min) | 30 (14.2) |
| Shielding Gas Type | Argon |
| Backing Gas Flow, CFH (l/min) | 10 (4.7) |
| Backing Gas Type | Argon |
| Gas Metal Arc Welding Synergic Mode – All thicknesses 0.09” (2.3 mm) or greater | |
| Wire Type | HAYNES®282®alloy |
| Wire Diameter, in (mm) | 0.045 (1.1) |
| Feed Speed, ipm (m/min) | 170-190 (4.3-4.8) |
| Current (DCEP), amperes | 175 |
| Voltage, volts | 28-32 |
| Stickout, in (mm) | 0.5-0.75 (12.7-19.1) |
| Travel Speed, ipm (mm/min) | 9-13 (230-330) |
| Torch Gas Flow, CFH (l/min) | 40 (18.9) |
| Gas Type | 75% Argon + 25% Helium |
Mechanical Properties of HAYNES®282®Welds
0.125″ (3.2 mm) Sheet Autogenously Welded, then with one Cover Pass
| Condition | Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Fracture Location | |||||
| – | °F | °C | ksi | MPa | ksi | MPa | – | ||
| As Welded | RT | RT | 64.7 | 446 | 125.4 | 865 | Weld | Weld | |
| As Welded/Aged** | RT | RT | 106.3 | 733 | 168.2 | 1160 | Base | Weld | |
| As Welded/Solution Annealed** | RT | RT | 66.9 | 461 | 126.8 | 874 | Base | Base | |
| As Welded/Solution Annealed**/Aged*** | RT | RT | 98.5 | 679 | 152.1 | 1049 | Base | Base | |
| 1000 | 538 | 83.7 | 577 | 132.0 | 910 | Base | Base | ||
| 1200 | 649 | 86.1 | 594 | 135.1 | 932 | Base | Weld | ||
| 1400 | 760 | 83.7 | 577 | 120.3 | 829 | Base | Base | ||
| 1600 | 871 | 70.9 | 489 | 77.1 | 532 | Base | Base | ||
| 1800 | 982 | 19.1 | 132 | 24.7 | 170 | Base | Weld | ||
RT = Room Temperature
GTAW Welded Transverse Tensile Data* For .5″ (12.7 mm) Plate
0.5″ (12.7 mm) Plate GTAW Welded
| Condition | Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Fracture Location | |||||
| – | °F | °C | ksi | MPa | ksi | MPa | – | ||
| As Welded | RT | RT | 75.9 | 523 | 130.8 | 902 | Weld | Base | |
| As Welded/Aged** | RT | RT | 120.5 | 831 | 165.8 | 1143 | Weld | Weld | |
| As Welded/Solution Annealed** | RT | RT | 77.2 | 532 | 139.5 | 962 | Weld | Weld | |
| As Welded/Solution Annealed**/Aged*** | RT | RT | 94.3 | 650 | 146.1 | 1007 | Weld | Weld | |
| 1000 | 538 | 85.4 | 589 | 134.3 | 926 | Weld | Weld | ||
| 1200 | 649 | 86.6 | 597 | 137.0 | 945 | Base | Base | ||
| 1400 | 760 | 85.3 | 588 | 125.7 | 867 | Base | Base | ||
| 1600 | 871 | 71.9 | 496 | 83.4 | 575 | Weld | Weld | ||
| 1800 | 982 | 20.1 | 139 | 26.3 | 181 | Weld | Weld | ||
GMAW Welded Transverse Tensile Data* For .5″ (12.7 mm) Plate
0.5″ (12.7 mm) Plate GMAW Welded
| Condition | Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Fracture Location | |||||
| – | °F | °C | ksi | MPa | ksi | MPa | – | ||
| As Welded | RT | RT | 77.9 | 537 | 130.4 | 899 | Base | Base | |
| As Welded/Aged** | RT | RT | 117.5 | 810 | 162.4 | 1120 | Weld | Weld | |
| As Welded/Solution Annealed** | RT | RT | 78.6 | 542 | 141.7 | 977 | Base | Base | |
| As Welded/Solution Annealed**/Aged*** | RT | RT | 94.4 | 651 | 155.8 | 1074 | Base | Base | |
| 1000 | 538 | 83.8 | 578 | 132.0 | 910 | Weld | Weld | ||
| 1200 | 649 | 85.2 | 587 | 137.3 | 947 | Weld | Weld | ||
| 1400 | 760 | 83.7 | 577 | 123.6 | 852 | Base | Base | ||
| 1600 | 871 | 71.0 | 490 | 82.0 | 565 | Weld | Weld | ||
| 1800 | 982 | 19.8 | 137 | 26.8 | 185 | Weld | Weld | ||
All Weld Metal Tensile Data*
0.5″ (12.7 mm) Cruciform GMAW Welded
| Condition | Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Fracture Location | |||||
| – | °F | °C | ksi | MPa | ksi | MPa | – | ||
| As Welded | RT | RT | 85.0 | 586 | 124.7 | 860 | 40.0 | 43.8 | |
| As Welded/Aged** | RT | RT | 105.4 | 727 | 151.6 | 1045 | 20.3 | 22.4 | |
| As Welded/Solution Annealed** | RT | RT | 81.2 | 560 | 132.4 | 913 | 40.1 | 45.5 | |
| As Welded/Solution Annealed**/Aged*** | RT | RT | 100.9 | 696 | 149.3 | 1029 | 22.7 | 20.0 | |
*Average of two tests
** 2075°F (1135°C)/30 min/AC
***1850°F (1010°C)/2 h/AC + 1450°F (788°C)/8 h/AC
Comparative Creep-Rupture Properties of Weld Metal to Base Metal
| Temperature | Stress | Material | Time to 1% Creep | Time to Rupture | ||
| °F | °C | ksi | MPa | – | h | h |
| 1400 | 760 | 50 | 345 | Base Metal* | 96.8 | 237.5 |
| All Weld Metal** | 197.0 | 364.8 | ||||
| 1700 | 927 | 7 | 48 | Base Metal* | 335.6 | 792.3 |
| All Weld Metal** | 648.0 | 950.5 | ||||
*Annealed + Age-Hardened **GMAW Welded + Annealed + Age-Hardened
Heat Treatment and Fabrication
Wrought HAYNES®282®alloy is furnished in the solution annealed condition unless otherwise specified. After component fabrication, the alloy would normally again be solution annealed at 2050 to 2100°F (1121 to 1149°C) for a time commensurate with section thickness and rapidly cooled or water-quenched for optimal properties. Following solution annealing, the alloy is given a two-step age-hardening treatment to optimize the microstructure and induce age-hardening. The first step is 1850°F (1010°C) for 2 hours followed by rapid or air cooling. The second step is 1450°F (788°C) for 8 hours followed by air cooling.
NOTE:The heat treatment for Advanced Ultra-Supercritical (A-USC), Supercritical CO2, and Other ASME Boiler Code Applications is different from the standard heat treatment. For information regarding the heat treatment for ASME code related applications, please clickhere.
Hot and Cold Working
HAYNES®282®alloy has excellent forming characteristics. It may be hot-worked at temperatures in the range of about 1750-2150°F (955-1177°C) provided the entire piece is soaked for a time sufficient to bring it uniformly to temperature. Initial breakdown is normally performed at the higher end of the range, while finishing is usually done at the lower temperatures to afford grain refinement.
As a consequence of its good ductility, 282®alloy is also readily formed by cold-working. Intermediate annealing may be performed at 2050 to 2100°F (1121 to 1149°C) for a time commensurate with section thickness and rapidly cooled or water-quenched, to ensure maximum formability. All hot- or cold-worked parts should normally be annealed prior to age-hardening (as described in the “Heat Treatment” section) in order to develop the best balance of properties.
Cold Forming Characteristics
Solution Annealed HAYNES®282®alloy
| Form | Hardness | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | Reduction of Area | ||
| – | HRB | ksi | MPa | ksi | MPa | % | % |
| Sheet | 90 | 56 | 384 | 122 | 839 | 59 | – |
| Plate | 93 | 56 | 384 | 120 | 830 | 60 | 61 |
| Bar | 86 | 51 | 348 | 118 | 816 | 62 | 69 |
Hardness vs. Cold Work (Sheet)
| Alloy | 0% | 10% | 20% | 30% | 40% | 50% |
| 282® | 93 HRB | 26 HRC | 33 HRC | 38 HRC | 41 HRC | 43 HRC |
| R-41 | 96 HRB | 30 HRC | 36 HRC | 39 HRC | 41 HRC | 42 HRC |
| Waspaloy | 94 HRB | 26 HRC | 32 HRC | 37 HRC | 39 HRC | 41 HRC |
| 263 | 89 HRB | 19 HRC | 27 HRC | 33 HRC | 37 HRC | 39 HRC |
| 625 | 97 HRB | 32 HRC | 37 HRC | 40 HRC | 42 HRC | 45 HRC |
Effect of Cold Reduction on Room-Temperature Tensile Properties*
| Cold Reduction | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||
| % | ksi | MPa | ksi | MPa | % |
| 0 | 55.5 | 383 | 121.0 | 834 | 58.0 |
| 10 | 87.8 | 605 | 131.8 | 909 | 46.7 |
| 20 | 114.5 | 790 | 144.9 | 999 | 31.5 |
| 30 | 139.7 | 963 | 165.4 | 1141 | 15.5 |
| 40 | 158.5 | 1093 | 184.2 | 1270 | 8.9 |
| 50 | 174.7 | 1204 | 200.4 | 1382 | 6.6 |
| 60 | 190.4 | 1312 | 215.4 | 1485 | 5.6 |
*Based upon rolling reductions taken upon a solution annealed 0.125” (3.2 mm) thick sheet
HRB = Hardness Rockwell “B”.
HRC = Hardness Rockwell “C”.
Hardness of Solution Annealed Sheet Versus % Cold Work
Machining
HAYNES®282®alloy has similar machining characteristics to other nickel alloys used at high temperatures. Rough machining should be carried out prior to age-hardening. Final machining or finish grinding may be done after age-hardening.Machining guidelinescan be found in the Welding and Fabrication section of this website. If further information is required, please contact the technical support group at Haynes International
Applications
HAYNES®282®alloy is designed for applications in engines for aircraft.
HAYNES®282®alloy is designed for the transition sections and other hot-gas-path components in land-based gas turbines.
Recent Data Study
The recently published Department of Energy technical paper supplements HAYNES®282®alloy ASME code case data with an in-depth technical analysis of creep life.
Key points:
- HAYNES®282®alloy code case announcement.
- The alloy is approved for use in modern power generation equipment utilizing supercritical carbon dioxide and advanced ultra-supercritical steam technologies.
- TheDoE publication, found here,presents an in-depth study of the effects of time, temperature, stress, and grain size on predicted service life of HAYNES®282®alloy.
- The publication explores the predicted applied stress to allow for at least 100,000 hours of service life (approximately eleven years and five months) using the Larson Miller and Wilshire creep life modelling approaches.
- Excerpts from the paper state:
- “…Experimental creep-rupture data generated for an ASME International code case for wrought [HAYNES®282®alloy were analyzed] with the aim of developing expressions for creep-limited lifetime as a function of applied stress and temperature.”
- “The models were used to calculate the applied stresses at which HAYNES®282®alloy would achieve 100,000-h creep lifetimes as a function of temperature between 600 and 950 ◦C, …”
- “Lifetime predictions based on these derived expressions adequately described other experimental datasets for HAYNES®282®alloy.”
Please contact Brett Tossey for more information at765-456-6098orBTossey@HaynesIntl.com .
Specifications and Codes
Specifications
| HAYNES® 282® alloy(N07208) | |
| Sheet, Plate & Strip | AMS 5951 |
| Billet, Rod & Bar | B 637AMS 5915 |
| Coated Electrodes | – |
| Bare Welding Rods & Wire | – |
| Seamless Pipe & Tube | – |
| Welded Pipe & Tube | – |
| Fittings | – |
| Forgings | B 637AMS 5915 |
| DIN | – |
| Others | – |
Codes
| HAYNES® 282® alloy | |||
| (N07208) | |||
| ASME | Section l | ||
| Section lll | Class 1 | – | |
| Class 2 | – | ||
| Class 3 | – | ||
| Section Vlll | Div. 1 | ||
| Div. 2 | – | ||
| Section Xll | – | ||
| B16.5 | – | ||
| B16.34 | – | ||
| B31.1 | |||
| B31.3 | |||
| MMPDS | 6.3.11 | ||
1ASME Code Case 3024: Plate, Sheet, Strip, Bar, Fittings, Forgings, Forgings Stock, Seamless Pipe/Tube, Welded Pipe/Tube
2ASME B31 Case 219: Plate, Sheet, Strip, Bar, Fittings, Forgings, Forgings Stock, Seamless Pipe/Tube, Welded Pipe/Tube.
Disclaimer
Haynes International makes all reasonable efforts to ensure the accuracy and correctness of the data displayed on this site but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. Alloy properties disclosed here are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature and, as such, are indicative only of the results of such tests and should not be considered guaranteed maximums or minimums. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Safety Data Sheets supplied by Haynes International, Inc. All trademarks are owned by Haynes International, Inc., unless otherwise indicated.
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