phone-icon800.354.0806
765.456.6012
The Home of HASTELLOY® and
HAYNES® Alloys

Creep and Stress-Rupture Strengths

Plate- 2050°F  (1121°C) Solution-anneal

Test Temperature Creep Approximate Initial Stress to Produce Specified Creep in:
100 h 1000 h 10,000 h 100,000 h
°F °C % ksi MPa ksi MPa ksi MPa ksi MPa
1100 593 1.0 29.4 203 20.4 141 14.4* 100 - -
- - Rupture 45.5 315 32.2 223 22.9 158 113 16.3
1200 649 1.0 18.9 131 12.1 91 9.3* 64 - -
- - Rupture 32.2 223 22.4 154 15.6 108 76 11.0
1300 704 1.0 12.5 86 8.7 60 6.2* 43 - -
- - Rupture 22.9 158 15.7 108 10.8 75 51 7.4
1400 760 1.0 8.5 59 6.0 41 4.2* 29 - -
- - Rupture 16.4 113 11.0 76 7.4 51 34 5.0
1500 816 1.0 5.9 41 4.1 28 2.9* 20 - -
- - Rupture 11.7 81 7.7 53 5.1 35 23 3.4
1600 871 1.0 4.2 29 2.9 20 2.1* 14 - -
- - Rupture 8.4 58 5.5 38 3.6 25 17 2.4
1700 927 1.0 3.0 21 2.1 14 1.5* 10 - -
- - Rupture 6.1 42 3.9 27 2.5 17 11 1.6
1800 982 1.0 2.2 15 1.5 10 1.1* 8 - -
- - Rupture 4.4 30 2.8 19 1.8 12 8 1.2

*Extrapolation

Sheet, Solution-annealed

Temperature Creep Approximate Initial Stress to Produce Specified Creep in
100 Hours 1,000 Hours
°F °C % ksi MPa ksi MPa
1200 649 0.5 16 110 12.5 86
1 18.5 128 15 103
R 28 193 20 138
1300 704 0.5 11.5 79 9.2 63
1 13.9 96 10.8 74
R 19 131 14.5 100
1400 760 0.5 8.5 59 6.8* 47*
1 9.9 68 8.2* 57*
R 13 90 9.9 68
1500 816 0.5 6.2 43 4.9* 34*
1 8.2 57 6.0* 41*
R 9.6 66 7.9 54
1600 871 0.5 4.7 32 3.4* 23*
1 5.2 36 4.3* 30*
R 6.8 47 5.1 35
1700 927 0.5 3.2 22 2.1* 14*
1 3.6 25 2.7* 19*
R 4.6 32 3.2 22
1800 982 0.5 2.1 14 1.2 8.3
1 2.7 19 1.6 11
R 3.5 24 2.6 18

*Significant extrapolation
† Values obtained using Larson-Miller interpolation

Comparative Stress-Rupture Strengths

Test Temperature 10,000 Hour Rupture Strengths (ksi*)
°F °C HR-160® RA333® 800HT RA330® 253 MA RA85H 309 310
1200 649 15.6 16.5 17.5 11.0 14.0 12.0 16.0 9.3
1300 704 10.8 12.0 11.0 - 8.5 - - -
1400 760 7.4 9.2 7.3 4.3 5.2 5.0 5.45 3.9
1500 816 5.1 5.7 5.2 - 3.75 - - -
1600 871 3.6 3.1 3.5 1.7 2.5 2.1 1.86 1.65
1700 927 2.5 1.8 1.9 - 1.65 - - -
1800 982 1.8 1.05 1.2 0.63 1.15 0.9 0.63 0.69
Test Temperature 100,000 Hour Rupture Strengths (ksi*)
°F °C HR-160®** RA333® 800HT RA330® 253 MA RA85H 309 310
1200 649 11.0 11.5 13.0 7.6 8.7 8.0 11.6 6.5
1300 704 7.4 8.4 8.0 - 4.6 - - -
1400 760 5.0 6.5 5.3 2.7 3.9 3.2 3.8 2.6
1500 816 3.4 3.7 3.7 - 2.1 - - -
1600 871 2.4 1.9 2.5 1.0 1.45 1.3 1.25 1.06
1700 927 1.6 1.05 1.2 - 0.97 - - -
1800 982 1.2 0.58 0.8 0.33 0.7 0.5 0.41 0.42

*ksi can be converted to MPa (megapascals) by multiplying 6.895.
**Extrapolation.

Print Page
Back to top