USA SAE A 409/A 409M (2009), A 409 S31725 Specialsteel Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | A 409 S31725 | Austenite | SAE | USA | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service | 
| C | Mn | Si | P | S | Cr | Ni | Mo | N | 
|---|---|---|---|---|---|---|---|---|
| ≤0.03 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.03 | 18.00 -20.00 | 13.50 -17.50 | 4.00 -5.00 | ≤0.10 | 
| 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) | 
|---|---|---|---|---|---|---|
| 476 (≥) | 947 (≥) | 11 | 13 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 424 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 43 | - | - | 0.33 | - | |||
| 923 | 976 | - | 11.3 | 134 | - | ||
| 271 | - | 23 | 11.2 | 421 | 311 | 
Heat treated : 1379°C - 1754°C
| A 409/A 409M (2009) | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service | A-409-A-409M-(2009).pdf | 
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