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America ASME E71T-7 弧焊用碳钢药芯焊丝标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E71T-7 / E71T-7
Category Grade Standard Region/Area Standard Content
Metals E71T-7 ASME SFA-5.20/SFA-5.20M America 弧焊用碳钢药芯焊丝标准

Chemical composition(mass fraction)(wt.%) of the E71T-7

Element Min Max Similar

Mechanical Properties of steel grade E71T-7

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)
844 (≥) 625 (≥) 12 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade E71T-7

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
11 - -     0.34 -  
171 364 - 22.3 311   -  
635 - 21 14.2   142 344

Heat Treatment of steel grade E71T-7

Heat treated : 1361°C - 1669°C

Technological Curves of steel grade E71T-7

Cross Reference Table (Equivalent Grade) of E71T-7

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