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China CNS C4450R 铜及铜合金板及卷片 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C4450R / C 4450 R
Category Grade Standard Region/Area Standard Content
Metals C 4450 R CNS H 3132 China 铜及铜合金板及卷片

Chemical composition(mass fraction)(wt.%) of the C 4450 R

Element Min Max Similar
P 0.0020 0.1000 -
Zn - - -
Sn 0.8000 1.2000 -
Fe - 0.0300 -
Pb - 0.0500 -
Cu 70.0000 73.0000 -

Mechanical Properties of steel grade C 4450 R

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)
789 (≥) 281 (≥) 44 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade C 4450 R

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 -  
556 661 - 23.3 143   -  
223 - 33 23.2   311 424

Heat Treatment of steel grade C 4450 R

Heat treated : 1129°C - 1887°C

Technological Curves of steel grade C 4450 R

Cross Reference Table (Equivalent Grade) of C 4450 R

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