bedra14500

Tellurium Copper

Characteristics：

It is a low-alloyed tellurium copper alloy characterized by excellent electrical conductivity and enhanced machinability due to the addition of tellurium and phosphorus. It is widely used in electrical engineering and precision component manufacturing.

Typical applications:

It is mainly used in connector terminals, charging piles, nozzles of plasma cutting machines and power modules of communication base stations for new energy vehicles.

Standardization and composition

Note①：Includes tellurium, phosphorus and silver.

UNS	C14500
EN	CuTeP (CW118C)
JIS	/
GB	C14500 (TTe0.5)
Cu ①	≥ 99.90%
Te	0.4-0.7%
P	0.004-0.012%

Physical properties②

Note②：The testing temperature is 20℃. Note③：The testing temperature range is 20℃ to 300℃.

Density (g/cm³)	8.94
Metling temperature (℃)	1080
Electrical conductivity (%IACS)	≥ 85
Thermal conductivity (W / m x K)	355
Coefficient of thermal expansion③ (10-6/K)	17.1
Modulus of elasticity (GPa)	117

Fabrication Properties

Note④：C37700 = 100% Note⑤：C36000 = 100%

Capacity for being cold worked	Good
Capacity for being hot formed	Good
Brazing	Good
Resistance welding	Not recommended
Forgeability rating④	65%
Forgeability rating⑤	85%

Mechanical Properties

Temper	Diameter (mm)	Tensile Strength (MPa min.)	Yield Strength (MPa min.)	Elongation (% min.)
H02	1.5 ≤ Φ ＜ 6.5	260	205	8
H02	6.5 ≤ Φ ＜ 67	260	205	12
H04	1.5 ≤ Φ ＜ 6.5	330	275	4
H04	6.5 ≤ Φ ＜ 32	305	260	8
H04	32 ≤ Φ ＜ 76	275	240	8

Dimension Tolerance and Delivery Form

Note⑥：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)	Tolerance⑥ (mm)	Ovality (mm)	Length (mm. max.)	Straightness (mm/m max.)	ID (mm)	Weight (kg)
1.5 ≤ Φ 6.0	0.05	0.02	3000	0.5	800	500
6.0 ≤ Φ 10	0.06	0.03	3000	0.5	1200	800
10 ≤ Φ 18	0.08	0.04	3000	0.5	1500	1000
18 ≤ Φ 30	0.10	0.05	3000	0.5
30 ≤ Φ 50	0.16	0.08	3000	0.5
50 ≤ Φ 60	0.20	0.10	3000	0.5
60 ≤ Φ 76	0.40	0.20	3000	2.0