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X45CrSi9-3

Description

France AFNOR X45CrSi9-3 Valve Internal Combustion Engines steel (NF-EN 1009-1998) and X45CrSi9-3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Valve Steel: X45CrSi9-3
Category Type Steel Grade Standard Country Application
Steel GradesValve Steel X45CrSi9-3 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Z50CMNNb21-09-02Az
Z53CMN21-09Az
Z53CMNNb21-09-02Az
Z53CMNS21-09Az
Z55CMN20-08Az
Z60CMDVNb21-10Az
Z80CNS20-02
Z85CDV18-02
NC15Fe7TA
NC20TA

Chemical composition(mass fraction)(wt.%) of the X45CrSi9-3

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
0.40-0.50 2.70-3.30 Max 0.60 Max 0.040 Max 0.030 8.00-10.0 Max 0.50

Mechanical Properties of steel grade X45CrSi9-3

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)
322 (≥) 477 (≥) 34 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade X45CrSi9-3

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
43 - -     0.31 -  
185 662 - 41.3 332   -  
165 - 12 14.2   444 424

Heat Treatment of steel grade X45CrSi9-3

Heat treated : 1521°C - 1654°C

Technological Curves of steel grade X45CrSi9-3

Cross Reference Table (Equivalent Grade) of X45CrSi9-3

Grade Standard Country Application
X45CrSi9-3 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
ISO X45CrSi9 3 ISO ISO ISO standard valve martensite steel
EN X45CrSi9-3 EN Euronorm Euronorm Stainless Steel

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