France AFNOR Z50CMNNb21-09-02Az Steel Exhaust Valves and Z50CMNNb21-09-02Az Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Valve Steel | Z50CMNNb21-09-02Az | AFNOR | France | Steel Exhaust Valves |
Z12CKNDWNb21-20-20 |
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Z20CN21-12Az |
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Z25CNWS20-09 |
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Z35CNWS14-14 |
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Z40CSD10 |
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Z45CNW18-09 |
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Z45CS9 |
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53NNiMnCr210 |
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80SiNiCr200 |
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80SiNiMoWCr15 |
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | W(%) | Nb(%) | Ta(%) | Other(%) |
---|---|---|---|---|---|---|---|---|---|---|
0.45-0.55 | Max 0.45 | 8.00-10.0 | Max 0.040 | Max 0.030 | 20.0-22.0 | 3.50-5.00 | 0.80-1.50 | 1.80-2.50 | 1.80-2.50 | N0.40-0.60 |
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) |
---|---|---|---|---|---|---|
249 (≥) | 768 (≥) | 43 | 34 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 343 |
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 | - | |||
313 | 915 | - | 12.3 | 111 | - | ||
458 | - | 13 | 21.2 | 112 | 243 |
Heat treated : 1412°C - 1751°C
Grade | Standard | Country | Application |
---|---|---|---|
Z50CMNNb21-09-02Az | AFNOR | France | Steel Exhaust Valves |
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