bedra15760

Al2O3 Dispersion Strengthened Copper

Characteristics:

It is a high-alumina-content dispersion-strengthened copper (DSC) alloy, incorporating aluminum oxide (ceramic) particles within a copper matrix. The thermally stable nano-scale Al₂O₃ particles retard copper recrystallization, significantly enhancing resistance to thermal softening and mechanical strength at elevated temperatures. It offers high strength at elevated temperatures while maintaining favorable electrical and thermal conductivities.

Typical applications:

It is primarily used for RWMA welding caps and electrodes. It is also used for solder gun tips, MIG contact tips, vacuum tubes, microwave tubes, X-ray tube components, high-voltage DC relay/contactor blades and switches, and glass-to-metal seals.

Standardization and composition

UNS	C15760
EN	/
JIS	/
GB	C15760(TUAl0.60)
Cu	≥ 98.77%
Al2O3	1.0-1.2%
Pb	≤ 0.01%
Fe	≤ 0.01%

Physical properties①

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

Density (g/cm³)	8.8
Metling temperature (℃)	1050
Electrical conductivity (%IACS)	≥ 75
Thermal conductivity (W / m x K)	322
Coefficient of thermal expansion② (10-6/K)	16.6
Modulus of elasticity (GPa)	130

Fabrication Properties

Capacity for being cold worked	Excellent
Capacity for being hot formed	Poor
Brazing	Good

Mechanical Properties③

Note③：bedra technical standards

Temper	Diameter (mm)	Tensile Strength (MPa min.)	Yield Strength(Mpa min.)	Elongation(% min.)	Hardness(HRB min.)
H01	12.5 ≤ Ф ≤ 20	450	400	15	75
H02	12.5 ≤Ф ≤ 20	480	430	13	78

Dimension Tolerance and Delivery Form

Note④：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)	Tolerance④(mm)	Ovality (mm max)	Length(mm max.)	Straightness(mm/m max.)	ID(mm)	Weight(kg)
12.5 ≤ Ф ≤ 16	0.1	0.05	4000	0.5	1200	300
16Ф ≤ 20	0.1	0.075	4000	1.0