Russia GOST 25-20Л Specialsteel Russia TY standard grades and chemical compositions of the high temperature alloy castings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | 25-20Л | GOST | Russia | Russia TY standard grades and chemical compositions of the high temperature alloy castings |
C | Cr | Al | Mo | Ti | Co | W | Ni | Nb | Fe | B | Ce | V | Zr | Mn | Si | S | P |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
≤0.18 | 22.00 -26.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | 17.00 -21.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | 0.70 -1.50 | 0.80 -2.00 | ≤0.025 | ≤0.025 |
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) |
---|---|---|---|---|---|---|
289 (≥) | 555 (≥) | 42 | 12 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 |
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 |
---|---|---|---|---|---|---|---|
13 | - | - | 0.42 | - | |||
217 | 496 | - | 22.3 | 124 | - | ||
233 | - | 12 | 42.2 | 142 | 232 |
Heat treated : 1737°C - 1434°C
Grade | Standard | Country | Application |
---|---|---|---|
25-20Л |
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