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1.4866

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X33CrNiMnN23-8 X53CrMnNiN21-9
#X33CrNiMnN23-8 #1-4866

Description

France AFNOR NF EN 10090, 1.4866 Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.4866
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 1.4866 AFNOR France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the 1.4866

C Si Mn P S Cr Ni Mo W N
0.28 -0.38 0.50 -1.50 1.50 -3.50 ≤0.045 ≤0.030 22.00 -24.00 7.00 -9.00 ≤0.50 ≤0.50 0.25 -0.35

Mechanical Properties of steel grade 1.4866

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)
486 (≥) 959 (≥) 33 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade 1.4866

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
13 - -     0.14 -  
658 775 - 14.3 133   -  
959 - 42 21.2   343 212

Heat Treatment of steel grade 1.4866

Heat treated : 1783°C - 1556°C

Technological Curves of steel grade 1.4866

Cross Reference Table (Equivalent Grade) of 1.4866

Grade Standard Country Application
X33CrNiMnN23-8
X33CrNiMnN23-8

Relevant standard of 1.4866

NF EN 10090 Valve steels and alloys for internal combustion engines NF-EN-10090.pdf
X33CrNiMnN23-8 X53CrMnNiN21-9
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Jiangyou Longhai Special Steel Co.,Ltd.

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