Grade CuZr
Germany W-Nr. CW120C
Old Grade
Corresponding Standard DIN EN 12163-1998
Copper and copper alloys – Rod for general purposes
Classification Copper and Copper Alloys
Density 8.9 g/cm3
CuZr Chemical Element Composition Content (%)
Component Zr Other Total More
Minimum Value 0.1 - Cu:余量
Maximum Value 0.2 0.1
"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.
CuZr Mechanical Properties
diameter/width arcoss-flats
d
mm
Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
8<d≤80 CuZr-R180 Solution; R180 ≥180 ≈40* ≥30(A)
8<d≤80 CuZr-H040 Solution; H040 HB: 40~60;
HV: 40~65
4<d≤30 CuZr-R300 Solution heat treatment + cold working + precipitation hardening; R300 ≥300 ≈200* ≥15(A11.3),
≥20(A)
30<d≤50 CuZr-R280 Solution heat treatment + cold working + precipitation hardening; R280 ≥280 ≈180* ≥20(A)
4<d≤50 CuZr-H090 Solution heat treatment + cold working + precipitation hardening; H090 HB: 90~130;
HV: 95~135
4<d≤30 CuZr-R350 Solution heat treatment + cold working + precipitation hardening; R350 ≥350 ≈260* ≥14(A11.3),
≥18(A)
4<d≤30 CuZr-H120 Solution heat treatment + cold working + precipitation hardening; H120 HB: ≥120;
HV: ≥125
4<d≤80 CuZr-M M No specification No specification No specification No specification
New and Old Grade Replacement List
Corresponding Standard Grade
DIN 17672-1-1983
Grade
Germany W-Nr.
DIN EN 12163-1998
Grade
Germany W-Nr.
Old Grade
DIN EN 12163-2016
Grade
Germany W-Nr.
Approximate Comparison Table Copper and Copper Alloy
Germany European Standard
DIN EN/DIN W-Nr. EN Numerical Grade
CuZr 2.1580 CuZr CW120C

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