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E6918-4M2

China GB E6918-4M2 高强钢焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E6918-4M2 / E6918-4M2
Category Grade Standard Region/Area Standard Content
Metals E6918-4M2 GB/T 32533 China 高强钢焊条

Chemical composition(mass fraction)(wt.%) of the E6918-4M2

Element Min Max Similar
Mo 0.2500 0.4500 -
Ni - 0.9000 -
S - 0.0300 -
P - 0.0300 -
Si - 0.8000 -
Mn 1.6500 2.0000 -
C - 0.1500 -

Mechanical Properties of steel grade E6918-4M2

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)
268 (≥) 793 (≥) 21 33 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade E6918-4M2

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
13 - -     0.43 -  
943 355 - 44.3 231   -  
299 - 23 22.2   212 223

Heat Treatment of steel grade E6918-4M2

Heat treated : 1134°C - 1775°C

Technological Curves of steel grade E6918-4M2

Cross Reference Table (Equivalent Grade) of E6918-4M2

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