Typical Applications Welding electrode materials: resistance welding electrode cap, MIG welding conductive nozzle, battery welding needle
Circuit electrical components: high-power microwave tube components, high-voltage isolation switches
Other application areas: continuous casting crystallizers, high-strength power lines, etc
Chemical composition

Copper Cu	Margin	Wt%
Aluminum Al	0.60	Wt%

Note: Al exists in the form of Al₂O₃
Physical performance

Melting point	1083	° C
Density	8.81	g/cm3
Conductivity	78	% IACS
Thermal conductivity k	322	W/m/k
Thermal expansion coefficient	16.6	μ M/m/° C
Elastic modulus	130	Gpa

Mechanical properties

Status	Bar specification (mm)	Tensile strength (MPa)	Yield strength (MPa)	Elongation rate (%)	Hardness (HRB)
M3-490①	Φ 16~65	490~530	460-500	≥ 22	74~84
H5-500②	Φ 3-15	500~620	480~600	≥ 14	80~89
H6-500③	Φ 3-30	500~620	480~600	≥ 14	80~89