ZCuSn3Zn11Pb4 ZQSn3-12-5 3-11-4锡青铜 - GB 1176-1987

Grade	ZCuSn3Zn11Pb4
Other Names
Old Grade
Corresponding Standard	GB 1176-1987 Specification for Cast Copper Alloys
Classification	Copper and Copper Alloys

ZCuSn3Zn11Pb4 Chemical Element Composition Content (%)

Component	Fe	Si	P	Pb	Al	Zn	Sn	Sb	Other Total	More
Minimum Value	-	-	-	3	-	9	2	-	-	Cu:Remainder
Maximum Value	0.5	0.02	0.05	6	0.02	13	4	0.3	1	Cu:Remainder

"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.

ZCuSn3Zn11Pb4 Mechanical Properties

casting process	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
Sand casting S	≥175	≥8	≥60
Metal mold casting J	≥215	≥10	≥60

Approximate Comparison Table Cast tin bronze

China	Japan	United States	International Organization for Standardization		France	Russia
GB	JIS	UNS	ISO	Numerical Grade	NF EN/NF	GOST
ZCuSn3Zn11Pb4 ZQSn3-12-5 3-11-4锡青铜	BC1n1 C84500	C84500	GCuSn3Zn11Pb4	C84500	U-E3Z11Pb4Y300 C84500	БрО3Ц12C5Л

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