12X21H5T Austenitic - Martensitic steel and 12X21H5T Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Heat-Resistant Steel | 12X21H5T | Austenitic - Martensitic steel | ||
| 15X25T | |||||
| 15X28 | |||||
| 20X13H4Γ9 | |||||
| 09X15H8Ю | |||||
| 07X16H6 | |||||
| 09X17H7Ю | |||||
| 08X17H5M3 | |||||
| 08X20H14C2 | |||||
| 20X20H14C2 | |||||
| 08X22H6T | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | W(%) | Al(%) | Ti(%) | 
|---|---|---|---|---|---|---|---|---|---|---|
| 0.09-0.14 | Max 0.80 | Max 0.80 | Max 0.035 | Max 0.025 | 20.0-22.0 | 4.80-5.80 | Max 0.30 | Max 0.20 | Max 0.08 | 0.25-0.50 | 
| 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) | 
|---|---|---|---|---|---|---|
| 726 (≥) | 817 (≥) | 11 | 33 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 | 
| 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 | - | - | 0.23 | - | |||
| 567 | 383 | - | 44.3 | 324 | - | ||
| 631 | - | 11 | 42.2 | 144 | 243 | 
Heat treated : 1139°C - 1879°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 12X21H5T | Austenitic - Martensitic steel | 
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