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1.4875

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X55CrMnNiN20-8 X50CrMnNiNbN21-9
#X55CrMnNiN20-8 #1-4875

Description

France AFNOR NF EN 10090, 1.4875 Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.4875
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 1.4875 AFNOR France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the 1.4875

C Si Mn P S Cr Ni Mo N
0.50 -0.60 ≤0.25 7.00 -10.00 ≤0.035 ≤0.030 19.50 -21.50 1.50 -2.75 ≤ ≥ 0.20 -0.40

Mechanical Properties of steel grade 1.4875

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)
537 (≥) 596 (≥) 32 22 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 1.4875

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
34 - -     0.42 -  
159 619 - 44.3 114   -  
145 - 24 32.2   414 213

Heat Treatment of steel grade 1.4875

Heat treated : 1991°C - 1586°C

Technological Curves of steel grade 1.4875

Cross Reference Table (Equivalent Grade) of 1.4875

Grade Standard Country Application
X55CrMnNiN20-8
X55CrMnNiN20-8

Relevant standard of 1.4875

NF EN 10090 Valve steels and alloys for internal combustion engines NF-EN-10090.pdf
X55CrMnNiN20-8 X50CrMnNiNbN21-9
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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