Korea KS D 4115 (2001), STSF6NM Specialsteel Stainless steel forgings for pressure vessels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | STSF6NM | Martensite | KS | Korea | Stainless steel forgings for pressure vessels |
| C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| ≤0.06 | 0.30 -0.60 | 0.50 -1.00 | ≤0.030 | ≤0.030 | 12.00 -14.00 | 3.50 -4.50 | 0.30 -0.70 |
| 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) |
|---|---|---|---|---|---|---|
| 931 (≥) | 267 (≥) | 12 | 34 | 32 | 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 |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.14 | - | |||
| 176 | 281 | - | 12.3 | 332 | - | ||
| 744 | - | 43 | 44.2 | 144 | 233 |
Heat treated : 1847°C - 1526°C
| D 4115 (2001) | Stainless steel forgings for pressure vessels | D-4115-(2001).pdf |
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