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56 SiMn 7 KU

Italy UNI 56SiMn7KU Hot rolled or forged finished steel products for tools. Special alloyed steel qualities for cold working and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 56SiMn7KU / 56 SiMn 7 KU
Category Grade Standard Region/Area Standard Content
Metals 56 SiMn 7 KU UNI 2955-3 Italy Hot rolled or forged finished steel products for tools. Special alloyed steel qualities for cold working

Chemical composition(mass fraction)(wt.%) of the 56 SiMn 7 KU

Element Min Max Similar
Si 1.5000 2.0000 -
S - 0.0300 -
P - 0.0300 -
Mn 0.6000 0.9000 -
C 0.5200 0.6000 -

Mechanical Properties of steel grade 56 SiMn 7 KU

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)
873 (≥) 324 (≥) 42 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 56 SiMn 7 KU

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
43 - -     0.31 -  
163 344 - 31.3 421   -  
644 - 24 31.2   311 113

Heat Treatment of steel grade 56 SiMn 7 KU

Heat treated : 1736°C - 1422°C

Technological Curves of steel grade 56 SiMn 7 KU

Cross Reference Table (Equivalent Grade) of 56 SiMn 7 KU

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