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France AFNOR NF Z16.8.2 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: Z16.8.2 / Z 16.8.2
Category Grade Standard Region/Area Standard Content
Metals Z 16.8.2 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 16.8.2

Element Min Max Similar
Si - 0.5000 -
S - 0.0300 -
P - 0.0300 -
Ni 7.5000 9.5000 -
Mo 1.0000 2.0000 -
Mn - 2.5000 -
Cr 14.5000 16.5000 -
C - 0.1000 -

Mechanical Properties of steel grade Z 16.8.2

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)
671 (≥) 953 (≥) 43 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade Z 16.8.2

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 - -     0.34 -  
515 294 - 24.3 321   -  
339 - 43 34.2   232 124

Heat Treatment of steel grade Z 16.8.2

Heat treated : 1294°C - 1758°C

Technological Curves of steel grade Z 16.8.2

Cross Reference Table (Equivalent Grade) of Z 16.8.2

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