CuZn21Si3P CW724R - DIN EN 12449-2019

Grade	CuZn21Si3P
Germany W-Nr.	CW724R
Corresponding Standard	DIN EN 12449-2019 Copper and copper alloys - Seamless, round tubes 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：Rem.
Maximum Value	0.3	3.5	0.05	0.1	0.2	77	0.1	0.05	0.3	0.2	Zn：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

Wall thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
t≤20	R500	≥500	≤450	≥15
t≤20	H110				110~170
t≤20	R600	≥600	≥350	≥12
t≤20	H130				130~190
t≤7	R650	≥650	≥400	≥10
t≤7	H150				150~210

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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