USA AMS SA-268/SA-268M, SA-268 TP S40900 Specialsteel Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | SA-268 TP S40900 | Ferrite | AMS | USA | Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
C | Mn | Si | P | S | Cr | Ni | Mo |
---|---|---|---|---|---|---|---|
≤0.08 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.045 | 10.50 -11.7 | ≤0.50 | ≤ ≥ |
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) |
---|---|---|---|---|---|---|
591 (≥) | 995 (≥) | 24 | 42 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 314 |
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 |
---|---|---|---|---|---|---|---|
31 | - | - | 0.11 | - | |||
599 | 577 | - | 44.3 | 434 | - | ||
767 | - | 32 | 21.2 | 433 | 312 |
Heat treated : 1664°C - 1584°C
Grade | Standard | Country | Application |
---|---|---|---|
1.4409 | |||
1.4409 | |||
S30409 | |||
409 | |||
S40900 | |||
S40910 | |||
S40920 | |||
S40930 | |||
409Cb | |||
S40940 | |||
S40945 | |||
S40975 | |||
S40976 | |||
S40977 | |||
409Cb | |||
409Cb | |||
409Ni | |||
S30409 | |||
S40910 | |||
S40920 |
SA-268/SA-268M | Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service | SA-268-SA-268M.pdf |
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