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Z 50 CMNNb 21-09-02 Az

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France AFNOR NF Z50CMNNb21-09-02Az Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z50CMNNb21-09-02Az / Z 50 CMNNb 21-09-02 Az
Category Grade Standard Region/Area Standard Content
Metals Z 50 CMNNb 21-09-02 Az NF A35-579 France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the Z 50 CMNNb 21-09-02 Az

Element Min Max Similar
W 0.8000 1.5000 -
Si - 0.4500 -
S - 0.0300 -
P - 0.0400 -
Ni 3.5000 5.0000 -
Nb/Ta 1.8000 2.5000 -
N 0.4000 0.6000 -
Mo - 0.5000 -
Mn 8.0000 10.0000 -
Cr 20.0000 22.0000 -
C 0.4500 0.5500 -

Mechanical Properties of steel grade Z 50 CMNNb 21-09-02 Az

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)
538 (≥) 913 (≥) 21 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade Z 50 CMNNb 21-09-02 Az

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
33 - -     0.31 -  
838 471 - 13.3 334   -  
621 - 33 41.2   332 124

Heat Treatment of steel grade Z 50 CMNNb 21-09-02 Az

Heat treated : 1165°C - 1745°C

Technological Curves of steel grade Z 50 CMNNb 21-09-02 Az

Cross Reference Table (Equivalent Grade) of Z 50 CMNNb 21-09-02 Az

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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