| Brass Alloy Composition | |||||||||
| UNS No. | AS No. | Common Name | BSI No. | ISO No. | JIS No. | Copper % | Zinc % | Lead % | Other |
| C21000 | 210 | 95/5 Gilding metal | - | CuZn5 | C2100 | 94-96 | ~5 | - | - |
| C22000 | 220 | 90/10 Gilding metal | CZ101 | CuZn10 | C2200 | 89-91 | ~10 | - | - |
| C23000 | 230 | 85/15 Gilding metal | Cz103 | CuZn20 | C2300 | 84-86 | ~15 | - | - |
| C24000 | 240 | 80/20 Gilding metal | Cz103 | CuZn20 | C2400 | 78.5-81.5 | ~20 | - | - |
| C26130 | 259 | 70/30 Arsenical brass | Cz126 | CuZn30As | C4430 | 69-71 | ~30 | - | Arsenic 0.02-0.06 |
| C26000 | 260 | 70/30 Brass | Cz106 | CuZn30 | C2600 | 68.5-71.5 | ~30 | - | - |
| C26800 | 268 | Yellow brass(65/35) | Cz107 | CuZn33 | C2680 | 64-68.5 | ~33 | - | - |
| C27000 | 270 | 65/35 Wire brass | Cz107 | CuZn35 | - | 63-68.5 | ~35 | - | - |
| C27200 | 272 | 63/37 Common brass | Cz108 | CuZn37 | C2720 | 62-65 | ~37 | - | - |
| C35600 | 356 | Engraving brass, 2% lead | - | CuZn39Pb2 | C3560 | 59-64.5 | ~39 | 2.0-3.0 | - |
| C37000 | 370 | Engraving brass,1% lead | - | CuZn39Pb1 | C3710 | 59-62 | ~39 | 0.9-1.4 | - |
| C38000 | 380 | Section brass | Cz121 | CuZn43Pb3 | - | 55-60 | ~43 | 1.5-3.0 | Aluminum 0.1-0.6 |
| C38500 | 385 | Free cutting brass | Cz121 | CuZn39Pb3 | - | 56-60 | ~39 | 2.5-4.5 | - |