Grade CuNi12Zn24
Germany W-Nr. 2.0730
Corresponding Standard DIN 17672-1-1983
Wrought copper and copper alloys bars;Properties.
Classification Copper and Copper Alloys
Properties Corrosion Resistance
Density 8.7 g/cm3
CuNi12Zn24 Chemical Element Composition Content (%)
Component Fe Mn Ni Cu Pb Sn Other Total More
Minimum Value - - 11 63 - - - Zn:余量
Maximum Value 0.3 0.5 13 66 0.03 0.03 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.
CuNi12Zn24 Mechanical Properties
diameter/thickness
d
mm
Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Round bar; d≤10 2.0730.10 Soft F34 (.10) 340~440 ≤290 ≥40(A5) ≈85
Square bar, hexagonal bar; d≤8 2.0730.10 Soft F34 (.10) 340~440 ≤290 ≥40(A5) ≈85
Round bars; 3≤d<40 2.0730.26 Half hard F44(.26) 440~540 ≥290 ≥18(A5) ≈135
Square bars, Hexagonal bars; 3≤d<30 2.0730.26 Half hard F44(.26) 440~540 ≥290 ≥18(A5) ≈135
Round material; 2 ≤ d < 10 2.0730.30 Hard F54 (.30) 540~640 ≥440 ≥8(A5) ≈165
Square material, hexagonal material; 2 ≤ d < 8 2.0730.30 Hard F54 (.30) 540~640 ≥440 ≥8(A5) ≈165
Round bars; 1≤d<4 2.0730.32 Toughness and hardness F64 (.32) ≥640 ≥540 - ≈195
New and Old Grade Replacement List
Approximate Comparison Table Cupper and cupper alloy
Germany European Standard
DIN EN/DIN W-Nr. EN Numerical Grade
CuNi12Zn24 2.0730 CuNi12Zn24 CW403J

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