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Germany DIN 46Si7 Hot rolled steels for springs suitable for quenching and tempering - Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 46Si7 / 46Si7
Category Grade Standard Region/Area Standard Content
Metals 46Si7 DIN 17221 Germany Hot rolled steels for springs suitable for quenching and tempering - Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the 46Si7

Element Min Max Similar
Si 1.5000 2.0000 -
S - 0.0250 -
P - 0.0250 -
Mn 0.5000 0.8000 -
Cu+Sn - - -
C 0.4200 0.5000 -
Si 1.5000 1.8000 -
S - 0.0500 -
P - 0.0500 -
N - 0.0070 -
Mn 0.5000 0.8000 -
C 0.4200 0.5000 -

Mechanical Properties of steel grade 46Si7

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)
892 (≥) 523 (≥) 31 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 46Si7

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
31 - -     0.42 -  
377 349 - 23.3 243   -  
313 - 34 41.2   442 434

Heat Treatment of steel grade 46Si7

Heat treated : 1914°C - 1922°C

Technological Curves of steel grade 46Si7

Cross Reference Table (Equivalent Grade) of 46Si7

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