Gun bronze

 

Gun bronze - UNI EN 1982:2017

ClassificationAlloy nameCuPbSnFeAlNiMnSbPSiZnSAsBiCdCrMgCoSe
UNI EN 1982:2017 CB490K
(2)
min 81 3.5 2.2 - - - - - - - 7.5 - - - - - - - -
max 85.5 5.8 3.5 0.5 0.01 2 - 0.25 0.03 0.01 10 0.08 - - - - - - -
CB491K
(2)
min 83 4.2 4.2 - - - - - - - 4.5 - - - - - - - -
max 86.5 5.8 6 0.25 0.01 2 - 0.25 0.03 0.01 6.5 0.08 - - - - - - -
CB492K
(2, 4)
min 85 2.7 6.2 - - - - - - - 1.7 - - - - - - - -
max 88.5 3.5 8 0.2 0.01 2 - 0.25 0.03 0.01 3.2 0.08 - - - - - - -
CB493K
(2, 9)
min 81 5.2 6.2 - - - - - - - 2.3 - - - - - - - -
max 84.5 8 8 0.2 0.01 2 - 0.3 0.03 0.01 5 0.08 - - - - - - -
CB498K
(2)
min 86 1.2 5.7 - - - - - - - 3.2 - - - - - - - -
max 89.5 2 6.5 0.25 0.01 1 - 0.25 0.03 0.01 5 0.08 - - - - - - -
CB499K
(3)
min 84 0.2 4.2 - - 0.1 - - - - 4.5 - - - - - - - -
max 87.5 3 6 0.3 0.01 0.6 - 0.1 0.03 0.01 6.5 0.04 0.02 0.02 0.02 0.02 - - -

Notes

2 Nickel is included in the copper counting
3 For drinking water applications, restrictions to the chemical composition of some materials listed in this table may apply according to national regulations/laws
4 (Tin +1/2nickel) content shall be in the range 7.0% to 8.0%
9 For continuous castings and centrifugal castings, the minimum tin content for ingots shall be 5.4% and for castings 5.2% and the maximum copper content for ingots shall be 85.0% and for castings 86.0%