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France AFNOR NF TS37a Steel tubes. Precision welded tubes for mechanical application. Dimensions. Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TS37a / TS 37 a
Category Grade Standard Region/Area Standard Content
Metals TS 37 a NF A49-341 France Steel tubes. Precision welded tubes for mechanical application. Dimensions. Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the TS 37 a

Element Min Max Similar
S - 0.0500 -
P - 0.0500 -
N - 0.0070 -
C - 0.1900 -

Mechanical Properties of steel grade TS 37 a

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)
746 (≥) 729 (≥) 21 13 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade TS 37 a

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 - -     0.33 -  
783 777 - 31.3 342   -  
176 - 32 44.2   414 421

Heat Treatment of steel grade TS 37 a

Heat treated : 1491°C - 1499°C

Technological Curves of steel grade TS 37 a

Cross Reference Table (Equivalent Grade) of TS 37 a

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