CuZn21Si3P CW724R - EN 12167-2024

Grade	CuZn21Si3P
European Standard Steel Grade	CW724R
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

CuZn21Si3P Chemical Element Composition Content (%)

Component	Fe	Si	Mn	P	Ni	Cu	Pb	Al	Sn	Other Total	More
Minimum Value	-	2.7	-	0.02	-	75	-	-	-	-	Zn_min:Rem.
Maximum Value	0.3	3.5	0.05	0.1	0.2	77	0.1	0.05	0.3	0.2	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.

CuZn21Si3P 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
2≤t≤7	CuZn21Si3P-R670	R670	≥670	≥400	≥8(A100), ≥9(A11.3), ≥10(A)
2≤t≤20	CuZn21Si3P-R600	R600	≥600	≥300	≥11(A11.3), ≥12(A)
2≤t≤20	CuZn21Si3P-R500	R500	≥500	≤450	≥12(A100), ≥13(A11.3), ≥15(A)
2≤t≤7	CuZn21Si3P-H170	H170				≥170
2≤t≤20	CuZn21Si3P-H150	H150				150~220
2≤t≤20	CuZn21Si3P-H130	H130				130~180
All specifications	CuZn21Si3P-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);

CuZn21Si3P Corresponding Standards(Same grade name, different standards)

1	EN 12166-2016
	CuZn21Si3P CW724R
2	DIN EN 12163-2016
	CuZn21Si3P CW724R
3	DIN EN 12166-2016
	CuZn21Si3P CW724R
4	EN 12163-2016
	CuZn21Si3P CW724R
5	EN 12167-2024
	CuZn21Si3P CW724R
6	DIN EN 12449-2019
	CuZn21Si3P CW724R
7	EN 12449-2023
	CuZn21Si3P CW724R

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