USA SAE A 789/A 789M (2013), A 789 S31200 Specialsteel Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | A 789 S31200 | Duplex steel | SAE | USA | Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service |
C | Mn | Si | P | S | Cr | Ni | Mo | N |
---|---|---|---|---|---|---|---|---|
≤0.03 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.03 | 24.00 -26.00 | 5.50 -6.50 | 1.20 -2.00 | 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) |
---|---|---|---|---|---|---|
941 (≥) | 518 (≥) | 23 | 43 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 234 |
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 |
---|---|---|---|---|---|---|---|
13 | - | - | 0.43 | - | |||
973 | 824 | - | 34.3 | 333 | - | ||
568 | - | 13 | 41.2 | 221 | 332 |
Heat treated : 1674°C - 1557°C
Grade | Standard | Country | Application |
---|---|---|---|
44LN | |||
44LN(S31200) | |||
S31200 | |||
S31200 |
A 789/A 789M (2013) | Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service | A-789-A-789M-(2013).pdf |
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