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America ASME R45 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: R45 / R 45
Category Grade Standard Region/Area Standard Content
Metals R 45 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 R 45

Element Min Max Similar

Mechanical Properties of steel grade R 45

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)
486 (≥) 976 (≥) 31 43 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade R 45

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
43 - -     0.12 -  
134 553 - 14.3 331   -  
392 - 22 33.2   332 124

Heat Treatment of steel grade R 45

Heat treated : 1379°C - 1131°C

Technological Curves of steel grade R 45

Cross Reference Table (Equivalent Grade) of R 45

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