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FCD 420 Grade D4.5

Japan JIS FCD420GradeD4.5 球墨铸铁管 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals FCD 420 Grade D4.5 JIS G5526 Japan 球墨铸铁管

Chemical composition(mass fraction)(wt.%) of the FCD 420 Grade D4.5

Element Min Max Similar

Mechanical Properties of steel grade FCD 420 Grade D4.5

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)
317 (≥) 288 (≥) 43 44 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade FCD 420 Grade D4.5

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
33 - -     0.24 -  
476 718 - 33.3 144   -  
152 - 42 24.2   431 212

Heat Treatment of steel grade FCD 420 Grade D4.5

Heat treated : 1752°C - 1374°C

Technological Curves of steel grade FCD 420 Grade D4.5

Cross Reference Table (Equivalent Grade) of FCD 420 Grade D4.5

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