USA AMS SA-268/SA-268M, SA-268 S40500 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 S40500 | 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 | Al | 
|---|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 11.00 -14.50 | ≤ ≥ | ≤ ≥ | 0.10 -0.30 | 
| 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) | 
|---|---|---|---|---|---|---|
| 431 (≥) | 712 (≥) | 24 | 12 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 411 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.22 | - | |||
| 698 | 756 | - | 23.3 | 441 | - | ||
| 655 | - | 41 | 43.2 | 424 | 334 | 
Heat treated : 1227°C - 1527°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 1.4057 | |||
| 1.4057 | |||
| 1.4405 | |||
| 1.4059 | |||
| 1.4405 | |||
| 1.4405 | |||
| 405 | |||
| S40500 | |||
| MONEL alloy R-405 | |||
| S40500 | |||
| 405 | |||
| TP405 | |||
| S40500 | |||
| MT405 | |||
| 405 | |||
| S40500 | |||
| AISI 4053 | |||
| UNS T30405 | |||
| UNS T90405 | |||
| UNS J95405 | 
| 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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