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POLDI SR4

Global 企业标准 POLDISR4 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: POLDISR4 / POLDI SR4
Category Grade Standard Region/Area Standard Content
Metals POLDI SR4 -- Global

Chemical composition(mass fraction)(wt.%) of the POLDI SR4

Element Min Max Similar
Si - 0.4000 -
S - 0.0400 -
P - 0.0400 -
Mn - 0.6000 -
C 0.8500 1.0500 -

Mechanical Properties of steel grade POLDI SR4

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)
731 (≥) 515 (≥) 14 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade POLDI SR4

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
21 - -     0.23 -  
398 975 - 31.3 223   -  
937 - 34 22.2   444 212

Heat Treatment of steel grade POLDI SR4

Heat treated : 1457°C - 1375°C

Technological Curves of steel grade POLDI SR4

Cross Reference Table (Equivalent Grade) of POLDI SR4

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