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HAYNES® Alloys

Tensile Properties

Bar and Rings - Annealed and Aged

Test Temperature Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation Reduction in Area
°F °C ksi MPa ksi MPa % %
RT RT 122.4 845 187.4 1290 33.7 45.7
200 93 110.4 760 180.7 1245 31.7 47.0
400 204 102.3 705 173.5 1195 33.0 51.8
600 316 96.5 665 168.6 1160 33.4 48.4
800 427 86.3 595 161.3 1110 37.6 45.9
1000 538 78.3 540 156.3 1080 38.3 49.9
1200 649 82.7 570 144.9 1000 33.2 41.1
1400 760 44.9 310 106.2 730 44.3 54.1
1600 871 44.8 310 72.5 500 49.7 85.1
1800 982 30.6 210 42.0 290 54.0 97.8

RT= Room Temperature

Comparison of Yield Strengths and Elongations*

HAYNES® 242® alloy exhibits much higher yield strength than typical solid-solution-strengthened nickel-base alloys, such as HASTELLOY® S alloy, but also possesses excellent ductility in the fully heat-treated condition. This can translate into excellent containment characteristics for gas turbine rings and casings, particularly when coupled with 242 alloy's lower expansion coefficient and excellent ductility retention following thermal exposure. This combination is also well suited for a range of fastener and bolting applications up to 1300°F (705°C).

242 Temp Stress Ductility *Plate material or manufacturer's data.


Hot-Rolled Plate - Annealed and Aged (a)

Test Temperature  Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation Reduction in Area
°F °C ksi MPa ksi MPa % %
75 25 126 868 193 1330 36 -
400 204 101 696 176 1213 43 52
800 427 91 627 165 1137 45 52
1000 538 89 613 164 1130 44 51
1100 595 89 613 160 1102 44 51
1200 649 87 599 141 971 29 31
1300 705 73 503 118 813 28 30

Cold-Rolled Sheet- Annealed and Aged (a)

Test Temperature Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation Reduction in Area
°F °C ksi MPa ksi MPa % %
75 25 120 827 187 1288 38 -
1000 538 106 730 165 1137 31 -
1100 595 102 703 150 1034 18 -
1200 649 96 661 135 930 14 -
1300 705 83 572 109 751 10 -

(a)Average of two tests per heat, two heats of each product form. Solution Annealed + Aged 1200ºF-48 h.

Cold-Reduced Sheet- As Cold-Worked and Cold-Worked Plus Aged

HAYNES® 242 alloy has excellent strength and ductility as a cold-reduced and directly aged product. Coupled with its low thermal expansion characteristics, this makes it an excellent choice for fasteners and springs.

Test Temperature 0.2% Yield Strength Ultimate Tensile Strength Elongation
- °F °C ksi MPa ksi MPa %
M.A. RT RT 65.3 450 137.6 950 47
M.A. + 20% C.W. RT RT 139.5 960 169.6 1170 20
M.A. + 40% C.W. RT RT 181.3 1250 217.9 1500 8
M.A. + Age RT RT 130.0 895 192.0 1325 32
M.A. + 20% C.W. + Age RT RT 173.0 1195 209.5 1445 21
M.A. + 40% C.W. + Age RT RT 219.7 1515 244.7 1685 11
M.A. + 40% C.W. + Age 1100 595 191.4 1320 201.9 1390 11
M.A. + 40% C.W. + Age 1200 649 145.9 1005 198.7 1370 8
M.A. + 40% C.W. + Age 1300 705 134.3 925 183.7 1265 11
M.A. + 40% C.W. + Age 1400 760 94.1 650 156.0 1075 32

*RT= Room Temperature

Comparative Fastener Alloy Tensile Properties*

HAYNES 242 alloy compares very favorably with other cold-worked and directly aged fastener alloys. The graphs below present comparative room temperature tensile properties for 40% cold-reduced and aged sheet product.

242

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