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India IS CPR3 Copper strip for electrical purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CPR3 / CPR 3
Category Grade Standard Region/Area Standard Content
Metals CPR 3 IS 1897 India Copper strip for electrical purposes

Chemical composition(mass fraction)(wt.%) of the CPR 3

Element Min Max Similar
Total Others - 0.0065 -
Te - 0.0002 -
Se+Te - 0.0003 -
Se - 0.0002 -
Sb - 0.0004 -
S - 0.0015 -
Pb - 0.0005 -
Ni - 0.0010 -
Fe - 0.0010 -
Cu+Ag 99.9900 - -
Bi - 0.0002 -
As - 0.0005 -
Ag - 0.0025 -

Mechanical Properties of steel grade CPR 3

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)
293 (≥) 529 (≥) 14 24 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade CPR 3

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
24 - -     0.11 -  
685 665 - 14.3 232   -  
679 - 11 31.2   232 333

Heat Treatment of steel grade CPR 3

Heat treated : 1773°C - 1978°C

Technological Curves of steel grade CPR 3

Cross Reference Table (Equivalent Grade) of CPR 3

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