Grade CuSn8
European Standard Steel Grade CW453K
Corresponding Standard EN 12449-2023
Copper and Copper Alloys - Seamless, Round Tubes for General Purposes
Classification Copper and Copper Alloys
Density 8.8 g/cm3
CuSn8 Chemical Element Composition Content (%)
Component Fe P Ni Pb Zn Sn Other Total More
Minimum Value - 0.01 - - - 7.5 - Cu:Rem.
Maximum Value 0.1 0.4 0.2 0.02 0.2 8.5 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.
CuSn8 Mechanical Properties
Wall thickness
t
mm
Mark
Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
t≤10 R380 (Annealed condition) ≥380 ≤290 ≥55
t≤10 H080 (Annealed condition) 75~105
t≤5 R450 ≥450 ≥250 ≥25
t≤5 H115 110~155
t≤3 R520 ≥520 ≥440 ≥10
t≤3 H155 150~185
t≤2 R590 ≥590 ≥520 ≥5
t≤2 H180 ≥175
Approximate Comparison Table Copper and Copper Alloy
Japan United States International Organization for Standardization Germany France European Standard Russia United Kingdom
JIS UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
C5212 C52100 CuSn8 CuSn8 2.1030 CuSn9P CuSn8 CW453K BrOF7-0.2 PB104

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