USA AMS SA-312/SA-312M, SA-312 S31254 Specialsteel Specification for Seamless and Welded Austenitic Stainless Steel Pipes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | SA-312 S31254 | Austenite | AMS | USA | Specification for Seamless and Welded Austenitic Stainless Steel Pipes |
| C | Mn | Si | P | S | Cr | Ni | Mo | Cu | N |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.02 | ≤1.00 | ≤0.80 | ≤0.03 | ≤0.01 | 19.50 -20.50 | 17.50 -18.50 | 6.00 -6.50 | 0.50 -1.00 | 0.18 -0.22 |
| 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) |
|---|---|---|---|---|---|---|
| 147 (≥) | 655 (≥) | 13 | 32 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 |
| 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 |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.32 | - | |||
| 864 | 865 | - | 41.3 | 222 | - | ||
| 513 | - | 41 | 24.2 | 312 | 323 |
Heat treated : 1522°C - 1164°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| 254SMO | |||
| 254SMO(S31254) | |||
| S31254 | |||
| S31254 | |||
| S31254 | |||
| S31254 | |||
| S31254 | |||
| S31254 | |||
| S31254 | |||
| S31254 |
| SA-312/SA-312M | Specification for Seamless and Welded Austenitic Stainless Steel Pipes | SA-312-SA-312M.pdf |
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