Grade CuZn40Mn2Fe1
European Standard Steel Grade CW723R
Corresponding Standard EN 12449-2023
Copper and Copper Alloys - Seamless, Round Tubes for General Purposes
Classification Copper and Copper Alloys
Density 8.3 g/cm3
CuZn40Mn2Fe1 Chemical Element Composition Content (%)
Component Fe Si Mn Ni Cu Pb Al Sn Other Total More
Minimum Value 0.5 - 1 - 56.5 - - - - Zn:Rem.
Maximum Value 1.5 0.1 2 0.6 58.5 0.5 0.1 0.3 0.4
"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.
CuZn40Mn2Fe1 Mechanical Properties
Wall thickness
t
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
t≤8 R440 ≥440 ≥170 ≥15
t≤8 H115 110~150
t≤8 R490 ≥490 ≥270 ≥10
t≤8 H135 ≥130
Approximate Comparison Table Copper and Copper Alloy
Germany European Standard Russia United Kingdom
DIN EN/DIN W-Nr. EN Numerical Grade GOST BS EN/BS
CuZn40Mn2 2.0572 CuZn40Mn2Fe1 CW723R LMTs58-2 CZ136

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