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X55Cr21Mn8Ni2N

India IS X55Cr21Mn8Ni2N Steel for valves for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X55Cr21Mn8Ni2N / X55Cr21Mn8Ni2N
Category Grade Standard Region/Area Standard Content
Metals X55Cr21Mn8Ni2N IS 7494 India Steel for valves for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X55Cr21Mn8Ni2N

Element Min Max Similar
Si - 1.0000 -
S - 0.0350 -
P - 0.0450 -
Ni 1.5000 2.7500 -
Mn 7.0000 9.5000 -
Cr 20.0000 22.0000 -
C 0.5000 0.6000 -

Mechanical Properties of steel grade X55Cr21Mn8Ni2N

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)
553 (≥) 317 (≥) 32 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade X55Cr21Mn8Ni2N

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
24 - -     0.23 -  
954 888 - 34.3 144   -  
545 - 41 12.2   444 311

Heat Treatment of steel grade X55Cr21Mn8Ni2N

Heat treated : 1996°C - 1216°C

Technological Curves of steel grade X55Cr21Mn8Ni2N

Cross Reference Table (Equivalent Grade) of X55Cr21Mn8Ni2N

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