Korea KS D 3731 (2002), D 3732 (2002), STR309 Specialsteel Heat - resisting steel plates and sheets and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | STR309 | Austenite | KS | Korea | Heat - resisting steel plates and sheets |
C | Si | Mn | P | S | Cr | Ni | Mo | N |
---|---|---|---|---|---|---|---|---|
≤0.20 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 22.00 -24.00 | 12.00 -15.00 | ≤ ≥ | ≤ ≥ |
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) |
---|---|---|---|---|---|---|
393 (≥) | 243 (≥) | 14 | 11 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 |
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 |
---|---|---|---|---|---|---|---|
23 | - | - | 0.42 | - | |||
341 | 797 | - | 11.3 | 223 | - | ||
146 | - | 21 | 21.2 | 314 | 323 |
Heat treated : 1219°C - 1835°C
D 3731 (2002) | Heat - resisting steel bars | D-3731-(2002).pdf |
D 3732 (2002) | Heat - resisting steel plates and sheets | D-3732-(2002).pdf |
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