These three copper alloy has relatively high intensity and hardness, good conductivity, and thermal conductivity.

Alloy material: chromium copperCuCr　Grade:C18200 Alloy material: zirconium copperCuZr　Grade:C15000 Alloy material: chromium zirconium copper CuCrZr Grade:C18150 These three copper alloy has relatively high intensity and hardness, good conductivity, and thermal conductivity. The hardness, intensity, conductivity and thermal conductivity are remarkable improved after ageing treatment. It has been widely applied in collector, spot welding machine, seam welder, butt welder as high intensity, conductivity fittings. Chemical properties:

Alloy name	Element	Cr	Zr	Si	Ni	Mg	Al	Cu	Total impurities
Chromium copper	Min	0.4	-	-	-	-	-	Balance	-
CuCr	Max	1.1	-	-	0.05	-	-		0.5
Zirconium copper	Min	-	0.15	-	-	-	0.1	Balance	-
CuZr	Max	-	0.5	-	0.2	-	0.25		0.5
Chromium zirconium copper	Min	0.4	0.3	-	-	0.04	-	Balance	-
CuCrZr	Max	1.2	0.6	0.05	-	0.08	-		0.5

Plate specification:

Thickness	10	15	20	25	30	35	40	45	50	55
Width	250	250	250	250	250	250	250	250	250	250
Length	500	500	500	500	500	500	500	500	500	500