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France AFNOR NF TU48CR Steel tubes. Seamless unalloyed and Mo and Cr-Mo alloyed steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical delivrery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TU48CR / TU 48 CR
Category Grade Standard Region/Area Standard Content
Metals TU 48 CR NF A49-213 France Steel tubes. Seamless unalloyed and Mo and Cr-Mo alloyed steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical delivrery conditions

Chemical composition(mass fraction)(wt.%) of the TU 48 CR

Element Min Max Similar
Sn - 0.0300 -
Si 0.1500 0.5000 -
S - 0.0350 -
P - 0.0350 -
Mn 1.0000 1.5000 -
Cu - 0.2500 -
C - 0.2000 -

Mechanical Properties of steel grade TU 48 CR

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)
455 (≥) 519 (≥) 44 32 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade TU 48 CR

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
13 - -     0.33 -  
554 219 - 14.3 231   -  
845 - 22 33.2   312 242

Heat Treatment of steel grade TU 48 CR

Heat treated : 1134°C - 1358°C

Technological Curves of steel grade TU 48 CR

Cross Reference Table (Equivalent Grade) of TU 48 CR

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