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Stg 45.81

Germany DIN Stg45.81 Cast steels for general engineering purposes; technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Stg45.81 / Stg 45.81
Category Grade Standard Region/Area Standard Content
Metals Stg 45.81 DIN 1681 Germany Cast steels for general engineering purposes; technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the Stg 45.81

Element Min Max Similar

Mechanical Properties of steel grade Stg 45.81

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)
885 (≥) 771 (≥) 14 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade Stg 45.81

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 - -     0.14 -  
576 194 - 43.3 224   -  
184 - 12 33.2   342 141

Heat Treatment of steel grade Stg 45.81

Heat treated : 1274°C - 1857°C

Technological Curves of steel grade Stg 45.81

Cross Reference Table (Equivalent Grade) of Stg 45.81

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