CuZn40Mn1Pb1AIFeSn CW721R - EN 12167-2024

Grade	CuZn40Mn1Pb1AIFeSn
European Standard Steel Grade	CW721R
Corresponding Standard	EN 12167-2024 Copper and copper alloys - Profiles and bars for general purposes
Classification	Copper and Copper Alloys
Density	8.3 g/cm³

CuZn40Mn1Pb1AIFeSn Chemical Element Composition Content (%)

Component	Fe	Mn	Ni	Cu	Pb	Al	Sn	Other Total	More
Minimum Value	0.2	0.8	-	57	0.8	0.3	0.2	-	Zn_min:Rem.
Maximum Value	1.2	1.8	0.3	59	1.6	1.3	1	0.3	Zn_min:Rem.

"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.

CuZn40Mn1Pb1AIFeSn Mechanical Properties

thickness t mm	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
3≤t≤10	CuZn40Mn1Pb1AIFeSn-R500	R500	≥500	≥270	≥5(A100), ≥10(A11.3), ≥12(A)
10<t≤30	CuZn40Mn1Pb1AIFeSn-R440	R440	≥440	≥180	≥16(A11.3), ≥20(A)
3≤t≤10	CuZn40Mn1Pb1AIFeSn-H130	H130				≥130
10<t≤30	CuZn40Mn1Pb1AIFeSn-H100	H100				100~140
All specifications	CuZn40Mn1Pb1AIFeSn-M	M	As manufactured	As manufactured	As manufactured	As manufactured

Test pieces shall be in accordance with EN ISO 6892-1:2019, except that 200 mm gauge length is not permitted.
Elongation requirements for rod of thickness or diameter equivalent to the cross sectional area:
ⓐ less than 4 mm (A100 mm);
ⓑ 4 mm up to and including 8 mm (A 11,3);
ⓒ greater than 8 mm (A);

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