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America ASME RM30 氧燃气焊接用碳钢和低合金钢填充丝标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: RM30 / RM30
Category Grade Standard Region/Area Standard Content
Metals RM30 ASME SFA-5.2/SFA-5.2M America 氧燃气焊接用碳钢和低合金钢填充丝标准

Chemical composition(mass fraction)(wt.%) of the RM30

Element Min Max Similar
C - 0.0800 -
Mn - 0.5000 -
P - 0.0350 -
S - 0.0400 -
Si - 0.1000 -
Ni - 0.3000 -
Cr - 0.2000 -
Mo - 0.2000 -
Cu - 0.3000 -
Al - 0.0200 -

Mechanical Properties of steel grade RM30

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)
393 (≥) 797 (≥) 14 13 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade RM30

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
41 - -     0.43 -  
271 815 - 43.3 332   -  
741 - 31 22.2   344 423

Heat Treatment of steel grade RM30

Heat treated : 1911°C - 1246°C

Technological Curves of steel grade RM30

Cross Reference Table (Equivalent Grade) of RM30

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