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Z 6 CND 17-12 B

France AFNOR NF Z6CND17-12B Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z6CND17-12B / Z 6 CND 17-12 B
Category Grade Standard Region/Area Standard Content
Metals Z 6 CND 17-12 B NF A49-214 France Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

Chemical composition(mass fraction)(wt.%) of the Z 6 CND 17-12 B

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0350 -
Ni 11.0000 14.0000 -
Mo 2.0000 3.0000 -
Mn - 2.0000 -
Cr 16.0000 18.0000 -
C 0.0400 0.0800 -
B 0.0010 0.0030 -

Mechanical Properties of steel grade Z 6 CND 17-12 B

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)
649 (≥) 866 (≥) 34 42 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade Z 6 CND 17-12 B

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
43 - -     0.32 -  
568 742 - 22.3 142   -  
227 - 31 31.2   121 143

Heat Treatment of steel grade Z 6 CND 17-12 B

Heat treated : 1138°C - 1244°C

Technological Curves of steel grade Z 6 CND 17-12 B

Cross Reference Table (Equivalent Grade) of Z 6 CND 17-12 B

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