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Italy UNI G25 Classification of grey cast iron and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: G25 / G 25
Category Grade Standard Region/Area Standard Content
Metals G 25 UNI 5007 Italy Classification of grey cast iron

Chemical composition(mass fraction)(wt.%) of the G 25

Element Min Max Similar

Mechanical Properties of steel grade G 25

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)
762 (≥) 594 (≥) 23 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade G 25

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
24 - -     0.23 -  
328 786 - 22.3 232   -  
464 - 12 33.2   324 324

Heat Treatment of steel grade G 25

Heat treated : 1993°C - 1777°C

Technological Curves of steel grade G 25

Cross Reference Table (Equivalent Grade) of G 25

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