USA AMS SA-193/SA-193M, SA-193 Grade B8M2 Class 2B Specialsteel Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | SA-193 Grade B8M2 Class 2B | Precipitation-Hardening | AMS | USA | Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service |
| C | Si | Mn | Ni | Cr | Al | Cu | Ti | Fe | Mo | Co | Ta | Zr | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.13 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤5.70 | ≤6.30 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤2.00 | ≤ ≥ | ≤3.00 | ≤0.60 | ≤11.00 |
| 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) |
|---|---|---|---|---|---|---|
| 749 (≥) | 139 (≥) | 12 | 42 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
| 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 |
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.33 | - | |||
| 831 | 919 | - | 32.3 | 314 | - | ||
| 221 | - | 23 | 44.2 | 141 | 214 |
Heat treated : 1913°C - 1624°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| M-22 |
| SA-193/SA-193M | Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service | SA-193-SA-193M.pdf |
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