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ISO X55CrMnNiN20 8

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ISO X85CrMoV18 2 ISO X53CrMnNiN21 9
#X55CrMnNiN20-8

Description

ISO ISO ISO X55CrMnNiN20 8 ISO standard valve austenite steel and ISO X55CrMnNiN20 8 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ISO X55CrMnNiN20 8
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ISO X55CrMnNiN20 8 ISO ISO ISO standard valve austenite steel
ISO H18
ISO NiCr15Fe8
ISO H20
ISO NiCr20Ti
ISO H21
ISO H22
ISO NiCr22Mo9Nb
ISO X50CrSi8 2
ISO X45CrSi9 3
ISO X85CrMoV18 2

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) N(%)
0.50-0.60 Max 0.25 7.00-10.0 Max 0.05 Max 0.03 19.5-21.5 1.50-2.75 0.20-0.40

Mechanical Properties of steel grade ISO 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)
875 (≥) 783 (≥) 24 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade ISO 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
33 - -     0.22 -  
573 498 - 41.3 222   -  
132 - 42 42.2   114 132

Heat Treatment of steel grade ISO X55CrMnNiN20 8

Heat treated : 1548°C - 1151°C

Technological Curves of steel grade ISO X55CrMnNiN20 8

Cross Reference Table (Equivalent Grade) of ISO X55CrMnNiN20 8

Grade Standard Country Application
X55CrMnNiN20-8 DIN Germany Valve steel
X55CrMnNiN20-8 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
ISO X55CrMnNiN20 8 ISO ISO ISO standard valve austenite steel
ISO X85CrMoV18 2 ISO X53CrMnNiN21 9
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