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Z 25.20 C

France AFNOR NF Z25.20C Welding consumables. Covered electrodes for manual metal arc welding of stainless and heat resisting steels. Classification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z25.20C / Z 25.20 C
Category Grade Standard Region/Area Standard Content
Metals Z 25.20 C NF A81-343 France Welding consumables. Covered electrodes for manual metal arc welding of stainless and heat resisting steels. Classification

Chemical composition(mass fraction)(wt.%) of the Z 25.20 C

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0300 -
Ni 18.0000 22.0000 -
Mn - 2.5000 -
Cr 24.0000 28.0000 -
C 0.2500 0.4500 -

Mechanical Properties of steel grade Z 25.20 C

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)
792 (≥) 286 (≥) 41 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade Z 25.20 C

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
23 - -     0.21 -  
373 457 - 44.3 333   -  
118 - 23 12.2   434 214

Heat Treatment of steel grade Z 25.20 C

Heat treated : 1855°C - 1939°C

Technological Curves of steel grade Z 25.20 C

Cross Reference Table (Equivalent Grade) of Z 25.20 C

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