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Grade CuNi7Zn39Pb3Mn2
European Standard Steel Grade CW400J
Corresponding Standard EN 12166-1998
Copper and copper alloys — Wire for general purposes
Classification Copper and Copper Alloys
Density 8.5 g/cm3
CuNi7Zn39Pb3Mn2 Chemical Element Composition Content (%)
Component Fe Mn Ni Cu Pb Sn Other Total More
Minimum Value - 1.5 6 47 2.3 - - Zn:余量
Maximum Value 0.3 3 8 50 3.3 0.2 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.
CuNi7Zn39Pb3Mn2 Mechanical Properties
diameter③
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≤12 CW400J-R520 1/2-Hard; R520 ≥520 ≈250* ≥12(A100)；
≥15(A11.3)；
≥18(A)
1.5≤d≤12 CW400J-H130 1/2 Hard; H130 HV: 130~170
1.5≤d≤10 CW400J-R620 Hard; R620 ≥620 ≈500* ≥3*(A100)；
≥5(A11.3)；
≥7(A)
1.5≤d≤10 CW400J-H160 Hard; H160 HV: 160~200
1.5≤d≤5 CW400J-R700 Tough Hard; R700 ≥700 ≈620*
1.5≤d≤5 CW400J-H190 Tough Hard; H190 HV: 190~230
1.5≤d≤12 CW400J-M M No specification No specification No specification No specification
①Material condition designation: H-Hardness (Brinell or Vickers), the suffix number indicates the hardness value; R-Tensile strength, the suffix number indicates the minimum tensile strength; M-As manufactured, without specified mechanical properties
②A100, A11.3, A-gauge length
③Or equivalent cross-sectional area for polygonal wire.
CuNi7Zn39Pb3Mn2 Corresponding Standards(Same grade name, different standards)
1 EN 12166-1998
CuNi7Zn39Pb3Mn2 CW400J
2 EN 12166-2016
CuNi7Zn39Pb3Mn2 CW400J
3 DIN EN 12166-2016
CuNi7Zn39Pb3Mn2 CW400J
4 DIN EN 12166-1998
CuNi7Zn39Pb3Mn2 CW400J
5 EN 12167-2024
CuNi7Zn39Pb3Mn2 CW400J

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