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Grade CuZn20
Germany W-Nr. CW503L
Corresponding Standard DIN EN 12449-2019
Copper and Copper Alloys - Seamless, Round Tubes for General Purposes
Classification Copper and Copper Alloys
Density 8.7 g/cm3
CuZn20 Chemical Element Composition Content (%)
Component Fe Ni Cu Pb Al Sn Other Total More
Minimum Value - - 79 - - - - Zn：Rem.
Maximum Value 0.05 0.3 81 0.05 0.02 0.1 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.
CuZn20 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≤20 R260 (Annealed condition ) ≥260 ≤160 ≥45
t≤20 H055 (Annealed condition ) 50~80
t≤10 R320 ≥320 ≥200 ≥25
t≤10 H085 80~115
t≤5 R390 ≥390 ≥300 ≥10
t≤5 H115 ≥110
1 Approximate Comparison Table Brass
China Japan United States International Organization for Standardization Germany European Standard Russia
GB JIS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. EN Numerical Grade GOST
H80 C2400 80Cu-20Zn C24000 CuZn20 C24000 CuZn20 C24000
2.0250 		CuZn20 CW503L Л80
2 Approximate Comparison Table Copper and Copper Alloy
Germany European Standard Russia
DIN EN/DIN W-Nr. EN Numerical Grade GOST
CuZn20 2.0250 CuZn20 CW503L L80
CuZn20 Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuZn20 CW503L
2 EN 12166-1998
CuZn20 CW503L
3 EN 12166-2016
CuZn20 CW503L
4 DIN EN 12163-1998
CuZn20 CW503L
5 DIN EN 12163-2016
CuZn20 CW503L
6 DIN 17671-1-1983
CuZn20 2.0250 (Ms80)
7 DIN EN 12166-2016
CuZn20 CW503L
8 DIN EN 12166-1998
CuZn20 CW503L
9 DIN 17660-1983
CuZn20 2.0250 (Ms80)
10 EN 12163-2016
CuZn20 CW503L
11 SS 14 5114-1985
CuZn20 SS5114
12 DIN EN 12449-2019
CuZn20 CW503L
13 EN 12449-2023
CuZn20 CW503L

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