ETP- Copper – Electrolytic Tough Pitch Copper

Alloy Names (as per RoHS specifications)
DIN CEN/TS 13388 CW004A
UNS C11000
Chemical Composition Weight percentage
Copper [Cu] 99.9 %
Oxygen [P] 50 to 400 PPM
Lead [Sn] 0.005% Max.
Total Impurity < 0.02%
Characterists
  • High electrical as well as thermal conductive material.
  • Good formability.
  • Excellent corrosion resistance.
  • Recyclable.
  • Prone to hydrogen embrittlement.
Main Applications
Electrical : Foil wound transformers in electrical panels & transmissions, Electrical bus bars & conductors, Components of electrical switches, anodes, cable wrap acts as shielding tape, able tape in the form of ultra-thin foil of 40 micron thickness in power cables, Terminals, Contacts, Flexible Busbars, XLPE Cable Wrap/Shielding Tapes .
Industrial : Heat Sinks, Stamped/Punched parts, Chlorine Battery Caps.

Properties

Density 8.89 g/cm³
Thermal expansion coefficient - 191 .. 16 14.1 10-6/K
0 .. 300 °C 17.7 10-6/K
Specific Heat Capacity 0.386 J/(g.k)
Thermal Conductivity 394 W/(m.k)
Electrical Conductivity (1 MS/m = 1 m/(O mm²) 58"}">> 58 MS/m
Electrical Conductivity (IACS) 100"}">> 100 %
Thermal coefficient of electrical resistance (0 - 200 °C) 3.7 10-3/K
Modulus of elasticity (1 Gpa = kN/mm²) cold formed 130 Gpa
127 GPa
Designation TENSILE STRENGHT ELONGATION HARDNESS GRAIN
Rm (N/mm²) A50 MM % thickness ≤2,5mm A50% thickness >2,5mm HV MM
Min. Max Min. Min. Min. Max Min. Max
R220 220 260 33 42 - - - -
H040 - - - - 40 65 - -
R240 240 300 8 15 - - - -
H065 - - - - 65 95 - -
R290 290 360 4 6 - - - -
H090 - - - - 90 110 - -
R360 360 - 2 - - - - -
H110 - - - - 110 - - -
Shearing *  *
Deep Drawing *  *  *  *
Surface Treatment *  *  *  *
Welding *  *  *  *
Bending *  *  *

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