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EU EN E254 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: E254 / E 25 4
Category Grade Standard Region/Area Standard Content
Metals E 25 4 EN 1600 EU 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 E 25 4

Element Min Max Similar
Si - 1.2000 -
S - 0.0250 -
P - 0.0300 -
Ni 4.0000 6.0000 -
Mn - 2.5000 -
Cr 24.0000 27.0000 -
C - 0.1500 -

Mechanical Properties of steel grade E 25 4

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)
312 (≥) 696 (≥) 31 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade E 25 4

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
41 - -     0.43 -  
737 394 - 22.3 113   -  
319 - 12 14.2   123 233

Heat Treatment of steel grade E 25 4

Heat treated : 1855°C - 1742°C

Technological Curves of steel grade E 25 4

Cross Reference Table (Equivalent Grade) of E 25 4

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