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America AWS E4948 手工电弧焊用碳钢焊条标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E4948 / E 4948
Category Grade Standard Region/Area Standard Content
Metals E 4948 AWS A5.1/A5.1M America 手工电弧焊用碳钢焊条标准

Chemical composition(mass fraction)(wt.%) of the E 4948

Element Min Max Similar

Mechanical Properties of steel grade E 4948

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)
789 (≥) 624 (≥) 23 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade E 4948

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
14 - -     0.31 -  
863 599 - 34.3 232   -  
133 - 32 22.2   111 231

Heat Treatment of steel grade E 4948

Heat treated : 1737°C - 1342°C

Technological Curves of steel grade E 4948

Cross Reference Table (Equivalent Grade) of E 4948

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