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GS-33 NiCrMo 7 4 4

Germany DIN GS-33NiCrMo744 Quenched and tempered steel castings for general applications; technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals GS-33 NiCrMo 7 4 4 DIN 17205 Germany Quenched and tempered steel castings for general applications; technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the GS-33 NiCrMo 7 4 4

Element Min Max Similar
Si - 0.6000 -
S - 0.0070 -
P - 0.0150 -
Ni 1.5000 1.8000 -
Mo 0.3500 0.5000 -
Mn 0.5000 0.8000 -
Cr 0.9000 1.2000 -
C 0.3000 0.3600 -

Mechanical Properties of steel grade GS-33 NiCrMo 7 4 4

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)
141 (≥) 685 (≥) 12 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade GS-33 NiCrMo 7 4 4

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
14 - -     0.24 -  
128 323 - 44.3 144   -  
858 - 43 11.2   113 342

Heat Treatment of steel grade GS-33 NiCrMo 7 4 4

Heat treated : 1361°C - 1813°C

Technological Curves of steel grade GS-33 NiCrMo 7 4 4

Cross Reference Table (Equivalent Grade) of GS-33 NiCrMo 7 4 4

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