Physical Properties of Super Duplex 100 Alloys in the Annealed Condition at -20°F to +100°F
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Tensile Strength |
Yield Strength |
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| Alloy |
UNS Designation |
Spec. |
psi |
MPa |
ksi |
psi |
MPa |
ksi |
Elongation in 2 in. (min.) % |
Grain Size Req. |
Max. Hardness |
Modulus of Elasticity (x106psi) |
Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) |
Thermal Conductivity (BTU-in/ ft2-h-°F) |
| Super Duplex 100 |
S32760 |
A789, A790 |
109,000 |
750 |
109 |
80,000 |
550 |
80 |
25 |
— |
31 Rc |
— |
7.5 |
156 |
Composition of Super Duplex 100 tubing and pipe
| Grade |
Super Duplex 100 |
| UNS Designation |
S32760 |
| Carbon (C) Max. |
0.05 |
| Manganese (Mn) Max. |
1.00 |
| Phosphorous (P) Max. |
0.030 |
| Sulphur (S) Max. |
0.010 |
| Silicon (Si) Max. |
1.00 |
| Chromium (Cr) |
24.0–26.0 |
| Nickel (Ni) |
6.0–8.0 |
| Molybdenum (Mo) |
3.0–4.0 |
| Nitrogen (N) |
0.20–0.30 |
| Iron (Fe) |
Bal. |
| Copper (Cu) |
0.50–1.00 |
| Other Elements |
W 0.50–1.00, 40 min* |
* %Cr+3.3% Mo+16% N
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