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GX 7 CrNiMoCuNb 18-18

Germany DIN GX7CrNiMoCuNb18-18 Stainless steels castings and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals GX 7 CrNiMoCuNb 18-18 -- Germany Stainless steels castings

Chemical composition(mass fraction)(wt.%) of the GX 7 CrNiMoCuNb 18-18

Element Min Max Similar

Mechanical Properties of steel grade GX 7 CrNiMoCuNb 18-18

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)
387 (≥) 623 (≥) 43 12 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade GX 7 CrNiMoCuNb 18-18

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
42 - -     0.21 -  
372 759 - 32.3 433   -  
664 - 32 14.2   143 141

Heat Treatment of steel grade GX 7 CrNiMoCuNb 18-18

Heat treated : 1298°C - 1468°C

Technological Curves of steel grade GX 7 CrNiMoCuNb 18-18

Cross Reference Table (Equivalent Grade) of GX 7 CrNiMoCuNb 18-18

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