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EG72T-NM2

America ASME EG72T-NM2 气电焊用碳钢和低合金钢焊丝标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EG72T-NM2 / EG72T-NM2
Category Grade Standard Region/Area Standard Content
Metals EG72T-NM2 ASME SFA-5.26/SFA-5.26M America 气电焊用碳钢和低合金钢焊丝标准

Chemical composition(mass fraction)(wt.%) of the EG72T-NM2

Element Min Max Similar
C - 0.1200 -
Mn 1.1000 2.1000 -
P - 0.0300 -
S - 0.0300 -
Si 0.2000 0.6000 -
Ni 1.1000 2.0000 -
Cr - 0.2000 -
Mo 0.1000 0.3500 -
Cu - 0.3500 -
V - 0.0500 -
Others Total - 0.5000 -

Mechanical Properties of steel grade EG72T-NM2

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)
833 (≥) 363 (≥) 43 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade EG72T-NM2

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
22 - -     0.23 -  
592 323 - 34.3 322   -  
791 - 13 12.2   121 444

Heat Treatment of steel grade EG72T-NM2

Heat treated : 1198°C - 1474°C

Technological Curves of steel grade EG72T-NM2

Cross Reference Table (Equivalent Grade) of EG72T-NM2

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