USA AMS SA-312/SA-312M , SA-312 TP310HCb 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 TP310HCb | Austenite | AMS | USA | Specification for Seamless and Welded Austenitic Stainless Steel Pipes | 
| C | Si | Mn | P | S | Cr | Ni | Nb+Ta | Cu | 
|---|---|---|---|---|---|---|---|---|
| 0.04 -0.10 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 24.00 -26.00 | 19.00 -22.00 | ≤1.10 | ≤0.75 | 
| 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) | 
|---|---|---|---|---|---|---|
| 557 (≥) | 881 (≥) | 31 | 21 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 233 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.14 | - | |||
| 142 | 412 | - | 22.3 | 444 | - | ||
| 987 | - | 24 | 34.2 | 444 | 131 | 
Heat treated : 1526°C - 1844°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 310HCb | |||
| 310HCbN | |||
| 310HCb | |||
| TP310HCb | |||
| TP310HCbN | |||
| TP310HCb | |||
| TP310HCb | |||
| S31041 | |||
| S31041 | |||
| S31041 | |||
| S31041 | |||
| S31041 | 
| SA-312/SA-312M | Specification for Seamless and Welded Austenitic Stainless Steel Pipes | SA-312-SA-312M-.pdf | 
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