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Z 6 CNU 17.04

France AFNOR NF Z6CNU17.04 Iron and steel. Heat treatable steels for externally threaded high performance fasteners for use at high temperatures and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z6CNU17.04 / Z 6 CNU 17.04
Category Grade Standard Region/Area Standard Content
Metals Z 6 CNU 17.04 NF A35-558 France Iron and steel. Heat treatable steels for externally threaded high performance fasteners for use at high temperatures

Chemical composition(mass fraction)(wt.%) of the Z 6 CNU 17.04

Element Min Max Similar

Mechanical Properties of steel grade Z 6 CNU 17.04

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)
633 (≥) 578 (≥) 21 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade Z 6 CNU 17.04

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
12 - -     0.44 -  
567 673 - 44.3 224   -  
265 - 24 14.2   144 424

Heat Treatment of steel grade Z 6 CNU 17.04

Heat treated : 1736°C - 1111°C

Technological Curves of steel grade Z 6 CNU 17.04

Cross Reference Table (Equivalent Grade) of Z 6 CNU 17.04

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