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X53CrMnNiNbN21-9

Description

France AFNOR NF EN 10090, X53CrMnNiNbN21-9 Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X53CrMnNiNbN21-9
Category Class Grade Standard Country Application
Steel GradesSpecialsteel X53CrMnNiNbN21-9 AFNOR France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X53CrMnNiNbN21-9

C Si Mn P S Cr Ni Mo N C+N
0.48 -0.58 ≤0.45 8.00 -10.00 ≤0.045 ≤0.030 20.00 -22.00 3.25 -4.50 ≤ ≥ 0.38 -0.50 0.90 - ≥

Mechanical Properties of steel grade X53CrMnNiNbN21-9

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)
397 (≥) 721 (≥) 31 43 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade X53CrMnNiNbN21-9

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
21 - -     0.23 -  
411 336 - 13.3 142   -  
175 - 22 43.2   441 424

Heat Treatment of steel grade X53CrMnNiNbN21-9

Heat treated : 1632°C - 1916°C

Technological Curves of steel grade X53CrMnNiNbN21-9

Cross Reference Table (Equivalent Grade) of X53CrMnNiNbN21-9

Grade Standard Country Application
X53CrMnNiNbN21-9
X53CrMnNiNbN21-9

Relevant standard of X53CrMnNiNbN21-9

NF EN 10090 Valve steels and alloys for internal combustion engines NF-EN-10090.pdf

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