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France AFNOR NF S470M Steel tubes. Seamless steel tubes with improved machinability for mechanical machined parts and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S470M / S 470 M
Category Grade Standard Region/Area Standard Content
Metals S 470 M NF A49-312 France Steel tubes. Seamless steel tubes with improved machinability for mechanical machined parts

Chemical composition(mass fraction)(wt.%) of the S 470 M

Element Min Max Similar

Mechanical Properties of steel grade S 470 M

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)
989 (≥) 954 (≥) 42 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade S 470 M

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 - -     0.41 -  
619 432 - 33.3 211   -  
855 - 21 32.2   141 432

Heat Treatment of steel grade S 470 M

Heat treated : 1246°C - 1637°C

Technological Curves of steel grade S 470 M

Cross Reference Table (Equivalent Grade) of S 470 M

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