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X 7 CrNiMoAl 15 7

Germany DIN X7CrNiMoAl157 Stainless steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X7CrNiMoAl157 / X 7 CrNiMoAl 15 7
Category Grade Standard Region/Area Standard Content
Metals X 7 CrNiMoAl 15 7 -- Germany Stainless steel

Chemical composition(mass fraction)(wt.%) of the X 7 CrNiMoAl 15 7

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 3.0000 5.0000 -
Nb 0.1500 0.4500 -
Mn - 1.0000 -
Cu 3.0000 5.0000 -
Cr 15.0000 17.0000 -
C - 0.0700 -

Mechanical Properties of steel grade X 7 CrNiMoAl 15 7

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)
129 (≥) 457 (≥) 41 43 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade X 7 CrNiMoAl 15 7

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 - -     0.42 -  
379 646 - 43.3 433   -  
558 - 32 44.2   313 111

Heat Treatment of steel grade X 7 CrNiMoAl 15 7

Heat treated : 1244°C - 1164°C

Technological Curves of steel grade X 7 CrNiMoAl 15 7

Cross Reference Table (Equivalent Grade) of X 7 CrNiMoAl 15 7

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