KMW-Cu-DHP

Krishna Metal Works


Alloy Name
JIS ASTM KMW
C1220 C-12200 Cu-DHP


Chemical Composition Weight percentage
Cu 99.85 Min %
P 0.015-0.04%

Main Applications
Bus Bars
Electromechanical Hardware connectors

Physical Properties Typical values in annealed temper at 20°C
Density 8.90 g/cm3
Thermal Conductivity 196 W/m
Electrical Resistivity 0.0246 micro hm m
Electrical Conductivity (annealed) 85 %
Modulus of Elasticity 117 Gpa
Coeff. of Thermal Expansion 9.4 μm/m at 20° C to 300° C

Mechanical Properties (EN 1652)
Temper Tensile Strength Rm MPa
(N/mm2)
Yield Strength Rp0.2 MPa
(N/mm2)
Elongation A50mm % Hardness HV
O (SOFT) 36 Typ 28 Typ 30 Typ -
HB (half Hard) 42 Typ 36 ТУР 14 Typ -
HD (Hard) 50 Typ 45 Typ 12 Typ -


Fabrication Properties

Cold formability

Hot formability

Soldering

Brazing

Oxyacetylene welding

Gas shielded arc welding

Excellent

Excellent

Excellent

Excellent

Good

Excellent

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