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POLDI 425

Global 企业标准 POLDI425 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: POLDI425 / POLDI 425
Category Grade Standard Region/Area Standard Content
Metals POLDI 425 -- Global

Chemical composition(mass fraction)(wt.%) of the POLDI 425

Element Min Max Similar
W 3.2000 4.0000 -
V 0.1000 0.3000 -
Si 0.8000 1.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.2000 0.5000 -
Cr 1.0000 1.5000 -
C 0.2500 0.3500 -

Mechanical Properties of steel grade POLDI 425

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)
791 (≥) 482 (≥) 14 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade POLDI 425

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
42 - -     0.33 -  
572 882 - 43.3 344   -  
132 - 13 21.2   131 332

Heat Treatment of steel grade POLDI 425

Heat treated : 1245°C - 1185°C

Technological Curves of steel grade POLDI 425

Cross Reference Table (Equivalent Grade) of POLDI 425

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