USA AMS SA-312/SA-312M, SA-312 S30615 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 S30615 | Austenite | AMS | USA | Specification for Seamless and Welded Austenitic Stainless Steel Pipes | 
| C | Mn | Si | P | S | Cr | Ni | Mo | Al | N | 
|---|---|---|---|---|---|---|---|---|---|
| ≤0.20 | ≤0.80 | ≤3.50 | ≤ ≥ | ≤ ≥ | ≤18.50 | ≤14.50 | ≤ ≥ | ≤1.00 | 0.14 -0.20 | 
| 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) | 
|---|---|---|---|---|---|---|
| 393 (≥) | 877 (≥) | 34 | 13 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 232 | 
| 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 | - | - | 0.11 | - | |||
| 111 | 935 | - | 43.3 | 112 | - | ||
| 132 | - | 24 | 42.2 | 124 | 131 | 
Heat treated : 1524°C - 1734°C
| SA-312/SA-312M | Specification for Seamless and Welded Austenitic Stainless Steel Pipes | SA-312-SA-312M.pdf | 
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