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27 31 4 Cu L

France AFNOR NF 27314CuL 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 27314CuL / 27 31 4 Cu L
Category Grade Standard Region/Area Standard Content
Metals 27 31 4 Cu L NF EN 1600 France 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊

Chemical composition(mass fraction)(wt.%) of the 27 31 4 Cu L

Element Min Max Similar
Si - 1.2000 -
S - 0.0250 -
P+S - 0.0500 -
P - 0.0300 -
Ni 30.0000 33.0000 -
Mo 3.0000 4.5000 -
Mn - 2.5000 -
Fe - - -
Cu 0.6000 1.5000 -
Cr 26.0000 29.0000 -
C - 0.0400 -

Mechanical Properties of steel grade 27 31 4 Cu L

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)
584 (≥) 854 (≥) 24 44 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade 27 31 4 Cu L

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
24 - -     0.12 -  
844 877 - 33.3 112   -  
416 - 22 32.2   223 432

Heat Treatment of steel grade 27 31 4 Cu L

Heat treated : 1445°C - 1216°C

Technological Curves of steel grade 27 31 4 Cu L

Cross Reference Table (Equivalent Grade) of 27 31 4 Cu L

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