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GS-18 NiCrMo 12 6

Germany SEW GS-18NiCrMo126 High strength steel castings with good weldability. Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GS-18NiCrMo126 / GS-18 NiCrMo 12 6
Category Grade Standard Region/Area Standard Content
Metals GS-18 NiCrMo 12 6 SEW 520 Germany High strength steel castings with good weldability. Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the GS-18 NiCrMo 12 6

Element Min Max Similar

Mechanical Properties of steel grade GS-18 NiCrMo 12 6

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)
561 (≥) 694 (≥) 24 13 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade GS-18 NiCrMo 12 6

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
44 - -     0.23 -  
468 719 - 23.3 432   -  
396 - 33 21.2   321 134

Heat Treatment of steel grade GS-18 NiCrMo 12 6

Heat treated : 1639°C - 1385°C

Technological Curves of steel grade GS-18 NiCrMo 12 6

Cross Reference Table (Equivalent Grade) of GS-18 NiCrMo 12 6

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