USA SAE A 988/A 988M (2011), A 988 S32750 Specialsteel Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | A 988 S32750 | Duplex steel | SAE | USA | Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service |
| C | Mn | Si | P | S | Cr | Ni | Mo | N | Cu |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.03 | ≤1.20 | ≤0.80 | ≤0.035 | ≤0.02 | 24.00 -26.00 | 6.00 -8.00 | 3.00 -5.00 | 0.24 -0.32 | ≤0.50 |
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 842 (≥) | 623 (≥) | 11 | 24 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 433 |
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.24 | - | |||
| 641 | 174 | - | 34.3 | 144 | - | ||
| 921 | - | 14 | 31.2 | 112 | 213 |
Heat treated : 1856°C - 1171°C
| A 988/A 988M (2011) | Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service | A-988-A-988M-(2011).pdf |
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