France AFNOR NF A 35-579, Z53CMN21-09Az Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | Z53CMN21-09Az | AFNOR | France | Valve steels and alloys for internal combustion engines |
C | Si | Mn | P | S | Cr | Ni | Mo | N |
---|---|---|---|---|---|---|---|---|
0.48 -0.58 | ≤0.25 | 8.00 -10.00 | ≤0.040 | ≤0.030 | 20.00 -22.00 | 3.25 -4.50 | ≤ ≥ | 0.38 -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) |
---|---|---|---|---|---|---|
833 (≥) | 428 (≥) | 42 | 42 | 31 | 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 |
---|---|---|---|---|---|---|---|
34 | - | - | 0.44 | - | |||
834 | 247 | - | 42.3 | 334 | - | ||
929 | - | 22 | 34.2 | 412 | 144 |
Heat treated : 1537°C - 1783°C
Grade | Standard | Country | Application |
---|---|---|---|
Z53CMN21-09Az |
NF A 35-579 | Valve steels and alloys for internal combustion engines | NF-A-35-579.pdf |
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