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Grade CuZn21Si3P
European Standard Steel Grade CW724R
Corresponding Standard EN 12166-2016
Copper and Copper Alloys - Wire 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*
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
1.5<d≤20 CW724R-H110 H110 HV
110~170
1.5<d≤8 CW724R-H130 H130 130~190
1.5<d≤8 CW724R-H160 H160 160~220
1.5<d≤8 CW724R-H200 H200 ≥200
0.5<d≤20 CW724R-R500 R500 ≥500 ≤450 ≥12(A100)；
≥13(A11.3)；
≥15(A)
0.5<d≤8 CW724R-R600 R600 ≥600 ≥300 ≥10(A100)；
≥11(A11.3)；
≥12(A)
0.5<d≤8 CW724R-R670 R670 ≥670 ≥400 ≥8(A100)；
≥9(A11.3)；
≥10(A)
0.5<d≤8 CW724R-R750 R750 ≥750 ≥450 ≥2(A100)；
≥3(A11.3)
All specifications CW724R-M M No specification No specification No specification No specification
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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