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Grade CuZn21Si3P
Germany W-Nr. CW724R
Corresponding Standard DIN EN 12163-2016
Copper and copper alloys – Rod 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:余量
Maximum Value 0.3 3.5 0.05 0.1 0.2 77 0.1 0.05 0.3 0.2
"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
diameter/width arcoss-flats
d/t
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
6<d≤80,35<t≤80 CuZn21Si3P-R500 R500 ≥500 ≤450 ≥13(A11.3)，
≥15(A)
6<d≤80,35<t≤80 CuZn21Si3P-H130 H130 130~180
10<d≤40,15<t≤40 CuZn21Si3P-R600 R600 ≥600 ≥300 ≥12(A)
10<d≤40,15<t≤40 CuZn21Si3P-H150 H150 150~220
2<d≤20,2<t≤15 CuZn21Si3P-R670 R670 ≥670 ≥400 ≥8(A100)，
≥9(A11.3)，
≥10(A)
2<d≤20,2<t≤15 CuZn21Si3P-H170 H170 ≥170
All specifications CuZn21Si3P-M M No specification No specification No specification No specification
①Material condition names and character codes:
H - Hardness (Brinell or Vickers hardness), with the suffix number indicating the hardness value.
R - Tensile strength, with the suffix number indicating the minimum tensile strength value.
M - Manufactured without specified mechanical properties.
Refer to standard EN 1173-2008.
②A100、A11.3、A-gauge length
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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