|DIN CEN/TS 13388||CW004A|
We are producing ETP Grade high Electrical Conductivity Copper Foils, Strips and Sheets with Thickness Range from 0.04mm to 2.5mm & Maximum Width of 400mm in all range of Tempers/ hardness with reduced burr height of below 15 microns.
Cu-ETP is an oxygen containing copper which has a very high electrical and thermal conductivity. It has excellent forming properties and AMWL-11 Grade is weldable which is very suitable for Foil Wound Transformers.
|Chemical Composition||Weight percentage|
|Cu||99.90 min %|
Foil Wound Transformers, Switches, Elect. Terminals, Contacts, Flexible Busbars, XLPE Cable Wrap/Shielding Tapes etc.
Stamped/Punched parts, Chlorine Battery Caps, Heat sinks etc.
|Physical Properties Typical values in annealed temper at 20 °C|
|Thermal expansion coefficient -191 .. 16||14.1||10-6/K|
|Specific heat capacity - 0 .. 300°C||17.7||10-6/K|
|Electrical conductivity (1 MS/m = 1 m/(O mm²)||394||W/(m•K)|
|Electrical conductivity (IACS)||58||MS/m %|
|Thermal coefficient of electrical resistance (0 .. 200 C)||100||10-3/K|
|Modulus of elasticity ( 1 GPa = 1 kN/mm²) cold formed||130||GPA|
|Mechanical Properties (EN 1652)|
|Temper||Tensile Strength Rm MPa
|Yield Strength Rp0.2 MPa
|Elongation A50mm %||Hardness HV|
|O (SOFT)||210 min||70||35 Min||65 Max|
|HB (half Hard)||240 min||180||10 Min||70 to 95|
|HD (Hard)||290 min||250||90 min|
|Capacity for being Hot and Cold worked Gas Shield Arc Welding Machinability||Excellent Very Good|
|Capacity for being Hot-Dip Tinned||20% of Free Cutting Brass|
|KEI usually maintains a surface roughness in range of 0.15 to 0.25 on Ra scale for Better Electroplating Properties.||Excellent|