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A842 Grade 300

America ASTM A842Grade300 高密度石墨铸铁 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A842Grade300 / A842 Grade 300
Category Grade Standard Region/Area Standard Content
Metals A842 Grade 300 ASTM A842 America 高密度石墨铸铁

Chemical composition(mass fraction)(wt.%) of the A842 Grade 300

Element Min Max Similar

Mechanical Properties of steel grade A842 Grade 300

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)
628 (≥) 324 (≥) 22 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade A842 Grade 300

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
23 - -     0.41 -  
621 266 - 32.3 144   -  
669 - 21 22.2   114 241

Heat Treatment of steel grade A842 Grade 300

Heat treated : 1867°C - 1122°C

Technological Curves of steel grade A842 Grade 300

Cross Reference Table (Equivalent Grade) of A842 Grade 300

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