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X55CrMnNiN20-8

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X85CrMoV18-2 X53CrMnNiN21-9
#X55CrMnNiN20-8

Description

International ISO ISO 683-15 (1992), X55CrMnNiN20-8 Specialsteel Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X55CrMnNiN20-8
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X55CrMnNiN20-8 Austenite ISO International Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X55CrMnNiN20-8

C Si Mn P S Cr Mo Ni N
0.50 -0.60 ≤0.25 7.00 -10.00 ≤0.050 ≤0.030 19.50 -21.50 ≤ ≥ 1.50 -2.75 0.20 -0.40

Mechanical Properties of steel grade X55CrMnNiN20-8

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)
543 (≥) 719 (≥) 11 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade X55CrMnNiN20-8

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
32 - -     0.43 -  
739 562 - 24.3 442   -  
964 - 31 11.2   343 233

Heat Treatment of steel grade X55CrMnNiN20-8

Heat treated : 1774°C - 1221°C

Technological Curves of steel grade X55CrMnNiN20-8

Cross Reference Table (Equivalent Grade) of X55CrMnNiN20-8

Grade Standard Country Application
X55CrMnNiN20-8
X55CrMnNiN20-8

Relevant standard of X55CrMnNiN20-8

ISO 683-15 (1992) Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines ISO-683-15-(1992).pdf
X85CrMoV18-2 X53CrMnNiN21-9
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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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