BMn40-1.5 T71660 - GB /T 21652-2017

Grade	BMn40-1.5
China ISC	T71660
Corresponding Standard	GB /T 21652-2017 Copper and Copper Alloy Wire
Classification	Copper and Copper Alloys

BMn40-1.5 Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Ni ^①	Pb	Mg	Other Total	More
Minimum Value	-	-	-	1	-	-	39	-	-	-	Cu：余量
Maximum Value	0.5	0.1	0.1	2	0.005	0.02	41	0.005	0.05	0.9	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.

BMn40-1.5 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
0.05~0.20	软(O60)	≥390	A_100mm ≥15
＞0.20~0.50	软(O60)	≥390	A_100mm ≥20
＞0.50~6.0	软(O60)	≥390	A_100mm ≥25
0.05~0.20	硬(H04)	685~980	/
＞0.20~0.50	硬(H04)	685~880	/
＞0.50~6.0	硬(H04)	635~835	/

Approximate Comparison Table Wrought Cupronickel

China		United States	International Organization for Standardization	France	Russia
GB	ISC	ASTM	ISO	NF EN/NF	GOST
BMn40-1.5	T71660	58Cu-40Ni-12Mn	CuNi40Mn2	CuNi40Mn2	МНМц40-1.5

BMn40-1.5 Corresponding Standards(Same grade name, different standards)

1	GB /T 5231-2012
	BMn40-1.5 T71660
2	GB /T 5231-2022
	BMn40-1.5 T71660
3	GB /T 5231-2001
	BMn40-1.5 40-1.5锰白铜
4	YS /T 649-2018
	BMn40-1.5 T71660
5	GB /T 21652-2017
	BMn40-1.5 T71660

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