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Z55CMN20-08Az

Description

France AFNOR NF A 35-579, Z55CMN20-08Az Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: Z55CMN20-08Az
Category Class Grade Standard Country Application
Steel GradesSpecialsteel Z55CMN20-08Az AFNOR France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the Z55CMN20-08Az

C Si Mn P S Cr Ni Mo N
0.50 -0.60 ≤0.25 7.00 -10.00 ≤0.040 ≤0.030 19.50 -21.50 1.50 -2.75 ≤ ≥ 0.20 -0.40

Mechanical Properties of steel grade Z55CMN20-08Az

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)
236 (≥) 198 (≥) 23 33 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade Z55CMN20-08Az

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
32 - -     0.32 -  
126 886 - 41.3 243   -  
269 - 12 33.2   341 141

Heat Treatment of steel grade Z55CMN20-08Az

Heat treated : 1411°C - 1322°C

Technological Curves of steel grade Z55CMN20-08Az

Cross Reference Table (Equivalent Grade) of Z55CMN20-08Az

Grade Standard Country Application
Z55CMN20-08Az

Relevant standard of Z55CMN20-08Az

NF A 35-579 Valve steels and alloys for internal combustion engines NF-A-35-579.pdf

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