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Global 企业标准 RA188 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: RA188 / RA188
Category Grade Standard Region/Area Standard Content
Metals RA188 -- Global

Chemical composition(mass fraction)(wt.%) of the RA188

Element Min Max Similar

Mechanical Properties of steel grade RA188

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)
872 (≥) 959 (≥) 44 13 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade RA188

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 -  
858 347 - 31.3 243   -  
856 - 43 42.2   343 124

Heat Treatment of steel grade RA188

Heat treated : 1532°C - 1172°C

Technological Curves of steel grade RA188

Cross Reference Table (Equivalent Grade) of RA188

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