Russia GOST 12X21H5T Specialsteel Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | 12X21H5T | Duplex steel | GOST | Russia | Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition |
C | Si | Mn | P | S | Cr | Ni | Mo | W | Ti | Al |
---|---|---|---|---|---|---|---|---|---|---|
0.09 -0.14 | ≤0.80 | ≤0.80 | ≤0.035 | ≤0.025 | 20.00 -22.00 | 4.80 -5.80 | ≤0.30 | ≤0.20 | 0.25 -0.50 | ≤0.08 |
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) |
---|---|---|---|---|---|---|
174 (≥) | 925 (≥) | 21 | 42 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 423 |
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 | - | - | 0.33 | - | |||
548 | 839 | - | 11.3 | 124 | - | ||
583 | - | 22 | 41.2 | 421 | 212 |
Heat treated : 1583°C - 1185°C
Grade | Standard | Country | Application |
---|---|---|---|
12X21H5T |
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