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EN 1654-1998
Copper and copper alloys - Strip for springs and connectors
Material Designation Chemical Composition (%)
CW100C (CuBe1.7)
Fe Cu Ni Co Be
Min - 96.9 - - 1.6
Max 0.2 98.4 0.3 0.3 1.8
CW101C (CuBe2)
Fe Cu Ni Co Be
Min - 96.6 - - 1.8
Max 0.2 98.2 0.3 0.3 2.1
CW104C (CuCo2Be)
Fe Cu Ni Co Be
Min - 95.5 - 2 0.4
Max 0.2 97.6 0.3 2.8 0.7
CW107C (CuFe2P)
Fe P Cu Pb Zn
Min 2.1 0.015 96.82 - 0.05
Max 2.6 0.15 97.835 0.03 0.2
CW110C (CuNi2Be)
Fe Cu Ni Co Be
Min - 96.2 1.4 - 0.2
Max 0.2 98.4 2.2 0.3 0.6
CW111C (CuNi2Si)
Fe Si Mn Cu Ni Pb
Min - 0.4 - 96.08 1.6 -
Max 0.2 0.8 0.1 98 2.5 0.02
CW351H (CuNi9Sn2)
Fe Mn Cu Ni Sn Pb Zn
Min - - 85.87 8.5 1.8 - -
Max 0.3 0.3 89.7 10.5 2.8 0.03 0.1
CW403J (CuNi12Zn24)
Fe Mn Cu Ni Sn Pb Zn
Min - - 63 11 - - 19.94
Max 0.3 0.5 66 13 0.03 0.03 26
CW405J (CuNi12Zn29)
Fe Mn Cu Ni Sn Pb Zn
Min - - 57 11 - - 25.44
Max 0.3 0.5 60 13.5 0.03 0.03 32
CW409J (CuNi18Zn20)
Fe Mn Cu Ni Sn Pb Zn
Min - - 60 17 - - 16.94
Max 0.3 0.5 63 19 0.03 0.03 23
CW410J (CuNi18Zn27)
Fe Mn Cu Ni Sn Pb Zn
Min - - 53 17 - - 23.94
Max 0.3 0.5 56 19 0.03 0.03 30
CW450K (CuSn4)
Fe P Cu Ni Sn Pb Zn
Min - 0.01 94.38 - 3.5 - -
Max 0.1 0.4 96.49 0.2 4.5 0.02 0.2
CW451K (CuSn5)
Fe P Cu Ni Sn Pb Zn
Min - 0.01 93.38 - 4.5 - -
Max 0.1 0.4 95.49 0.2 5.5 0.02 0.2
CW452K (CuSn6)
Fe P Cu Ni Sn Pb Zn
Min - 0.01 91.88 - 5.5 - -
Max 0.1 0.4 94.49 0.2 7 0.02 0.2
CW453K (CuSn8)
Fe P Cu Ni Sn Pb Zn
Min - 0.01 90.38 - 7.5 - -
Max 0.1 0.4 92.49 0.2 8.5 0.02 0.2
CW454K (CuSn3Zn9)
Fe P Cu Ni Sn Pb Zn
Min - - 85.7 - 1.5 - 7.5
Max 0.1 0.2 91 0.2 3.5 0.1 10
CW502L (CuZn15)
Fe Cu Ni Al Sn Pb Zn
Min - 84 - - - - 13.38
Max 0.05 86 0.3 0.02 0.1 0.05 16
CW505L (CuZn30)
Fe Cu Ni Al Sn Pb Zn
Min - 69 - - - - 28.38
Max 0.05 71 0.3 0.02 0.1 0.05 31
CW507L (CuZn36)
Fe Cu Ni Al Sn Pb Zn
Min - 63.5 - - - - 33.88
Max 0.05 65.5 0.3 0.02 0.1 0.05 36.5
CW703R (CuZn23Al3Co)
Fe Cu Ni Al Sn Pb Co Zn
Min - 72 - 3 - - 0.25 20.05
Max 0.05 75 0.3 3.8 0.1 0.05 0.55 24.75
For Reference Only