K90901 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | High Alloy | K90901 | |||
K12047 |
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T21 |
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K31545 |
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T22 |
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K21590 |
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T23 |
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K40712 |
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T24 |
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K30736 |
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T91 |
C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Cr | Ni |
---|---|---|---|---|---|---|
0.07-0.14 | 0.2-0.5 | 0.3-0.6 | 0.02 | 0.01 | 8-9.5 | ≤0.4 |
Mo | Al | Cu | Nb | Ti | V | Ce |
0.85-1.05 | ≤0.04 | 0.06-0.1 | 0.18-0.25 | |||
N | Co | Pb | B | Other | ||
0.03-0.07 | ||||||
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) |
---|---|---|---|---|---|---|
782 (≥) | 636 (≥) | 44 | 11 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 311 |
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 | - | - | 0.41 | - | |||
797 | 152 | - | 23.3 | 123 | - | ||
185 | - | 11 | 24.2 | 224 | 321 |
Heat treated : 1693°C - 1264°C
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