bedra15100

Zirconium Copper

Characteristics:

This alloy is an important and unique copper alloy with high electrical conductivity, hardness, ductility, moderate strength, and excellent resistance to softening at elevated temperatures. The addition of 0.05 to 0.15% Zr to copper results in a heat-treatable copper alloy, which may be solution treated and subsequently aged to produce these desirable properties.

Typical applications:

Electrodes and caps for resistance welding aluminum car bodies, high-voltage DC contactors, high-voltage connectors, charging sockets and plugs.

Standardization and composition

UNS	C15100
Cu+Ag	≥ 99.9%
Zr	0.05-0.15%

Physical properties①

Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.

Density (g/cm³)	8.9
Metling temperature (℃)	1080
Electrical conductivity (%IACS)	≥ 90
Thermal conductivity (W / m x K)	367
Coefficient of thermal expansion② (10-6/K)	17
Modulus of elasticity (GPa)	129

Fabrication Properties

Note③：C36000 = 100%

Capacity for being cold worked	Good
Capacity for being hot formed	Good
Brazing	Good
Resistance welding	Not recommended
Machinability rating③	20%
Forgeability	Good

Mechanical Properties④

Note④：bedra technical standards

Temper	Diameter (mm)	Tensile Strength (MPa min.)	Yield Strength (MPa min.)	Elongation (% min.)	Hardness (HRB min.)
H02	5.0 ≤ Ф ≤ 42.5	300	240	12	58
H04	5.0 ≤ Ф ≤ 42.5	370	350	10	63

Dimension Tolerance and Delivery Form

Note⑤：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.

			Straight bar		Coil wire
Diameter (mm)	Tolerance⑤ (mm)	Ovality (mm)	Length (mm. max.)	Straightness (mm/m max.)	ID(mm)	Weight(Kg)
5.0 ≤ Φ ≤ 6.0	0.06	0.03	4000	1.0	500	100
6.0 Φ ≤ 10	0.10	0.05	4000	1.0	500	500
10 Φ ≤ 20	0.16	0.08	4000	1.0	800	500
20 Φ ≤ 25	0.18	0.09	4000	1.0
25 Φ ≤ 30	0.20	0.10	4000	1.0
30 Φ ≤ 40	0.24	0.12	4000	1.0
40 Φ ≤ 42.5	0.30	0.15	4000	1.0