CuSn3Zn9 CW454K - EN 1654-1998

Grade	CuSn3Zn9
European Standard Steel Grade	CW454K
Corresponding Standard	EN 1654-1998 Copper and copper alloys - Strip for springs and connectors
Classification	Copper and Copper Alloys
Density	8.8 g/cm³

CuSn3Zn9 Chemical Element Composition Content (%)

Component	Fe	P	Ni	Pb	Zn	Sn	Other Total	More
Minimum Value	-	-	-	-	7.5	1.5	-	Cu：余量
Maximum Value	0.1	0.2	0.2	0.1	10	3.5	0.2	Cu：余量

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

CuSn3Zn9 Mechanical Properties

condition	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Strip	CuSn3Zn9-R430	R430	430~520	≥(330)	≥6ⓐ ；≥8ⓑ
Strip	CuSn3Zn9-H140	H140				HV: 140~170
Strip	CuSn3Zn9-R510	R510	510~600	≥(430)	≥3ⓐ ；≥5ⓑ
Strip	CuSn3Zn9-H160	H160				HV: 160~190
Strip	CuSn3Zn9-R580	R580	580~690	≥(520)	≥2ⓑ
Strip	CuSn3Zn9-H180	H180				HV: 180~210
Strip	CuSn3Zn9-R660	R660	≥660	≥(610)
Strip	CuSn3Zn9-H220	H220				HV: ≥200

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!