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X 2 CrNiMo 18 16 4 KW

Austria ONORM X2CrNiMo18164KW Steel plates for boilers and pressure vessels; quality specifications and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 2 CrNiMo 18 16 4 KW ÖNORM M3121 Austria Steel plates for boilers and pressure vessels; quality specifications

Chemical composition(mass fraction)(wt.%) of the X 2 CrNiMo 18 16 4 KW

Element Min Max Similar

Mechanical Properties of steel grade X 2 CrNiMo 18 16 4 KW

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)
237 (≥) 118 (≥) 31 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade X 2 CrNiMo 18 16 4 KW

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 - -     0.34 -  
379 786 - 31.3 212   -  
137 - 34 33.2   313 212

Heat Treatment of steel grade X 2 CrNiMo 18 16 4 KW

Heat treated : 1633°C - 1787°C

Technological Curves of steel grade X 2 CrNiMo 18 16 4 KW

Cross Reference Table (Equivalent Grade) of X 2 CrNiMo 18 16 4 KW

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