USA SAE A 268/A 268M (2010), A 268 S44660 Specialsteel 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 | A 268 S44660 | Ferrite | SAE | USA | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
| C | Mn | Si | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| ≤0.025 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 25.00 -27.00 | 1.50 -3.50 | 2.50 -3.50 | ≤0.035 |
| 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) |
|---|---|---|---|---|---|---|
| 861 (≥) | 161 (≥) | 33 | 21 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
| 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 |
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.41 | - | |||
| 746 | 627 | - | 22.3 | 123 | - | ||
| 595 | - | 13 | 23.2 | 423 | 113 |
Heat treated : 1694°C - 1687°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| S44660 | |||
| S44660 | |||
| S44660 | |||
| Sea-Cure/SC-1(S44660) |
| A 268/A 268M (2010) | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service | A-268-A-268M-(2010).pdf |
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