CHEMICAL COMPOSITION OF COPPER SHEETS AND STRIPS FOR CONSTRUCTION, EN 1172
| Material | Element | Cu | Composition % (mass fraction) | Sn | Zn | others total | Density g/cm3 approx. | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical symbol | Numeric | Al | Fe | Ni | P | Pb | ||||||
| Cu-DHPb | CW024A | min. | 99,90c | — | — | — | 0,015 | — | — | — | — | 8,9 |
| max. | — | — | — | — | 0,040 | — | — | — | — | |||
| CuSnO,15 | CW117C | min. | Rem. | — | 0,02 | 0,02 | 0,015 | — | 0,10 | 0,10 | 0,10 | 8,9 |
| max. | — | — | — | 0,15 | ||||||||
| CuZnO,5d | CW119C | min. | Rem. | — | — | — | — | — | — | 0,1 | — | 8,9 |
| max. | — | — | — | — | 0,02 | — | — | 1,0 | 0,1 | |||
| CuAI5Zn5Sn1e | CW309G | min. | Rem. | 4,0 | 0,15 | — | — | — | 0,3 | 4,0 | — | 8,2 |
| max. | — | 6,0 | — | — | 0,05 | — | 1,5 | 6,0 | 0,5 | |||
| CuSn4 | CW450K | min. | Rem. | — | — | — | 0,01 | — | 3,5 | — | — | 8,9 |
| max. | — | — | 0,1 | 0,2 | 0,4 | 0,02 | 4,5 | 0,2 | 0,2 | |||
| CuZn15f | CW502L | min | 84 0 | Rem | 8,8 | |||||||
| max. | 86^0 | 0,02 | 0,05 | 0,3 | — | 0,05 | 0,1 | 0,1 | ||||
a) For information only b) With very good welding, brazing and soldering properties c) Including Ag, up to a maximum of 0.015%. d) Only for gutters, downpipes and fittings. Welding, brazing and heat treatment may cause zinc evaporation. e) Good soldering properties with a suitable flux and solder. f) Good brazing and soldering properties. Brazing may cause zinc evaporation. | ||||||||||||