Aluminium-bronze is a well-loved alloy as it is exemplified by its great strength, impressive corrosion resistance and good durability Its chemical structure mostly contains copper as the main element, although copper is generally present at a concentration of around 10% with iron, nickel, manganese, and other metals being added in varying ratios to provide certain properties. The main grades are C95400, C95500, and C95800, each having its own complement of alloy components suiting different uses. Various, chemical composition, grade charts and tables describe, by detail, the content, properties, and applicable normative in short. By aiding engineers, metallurgists, and manufacturers in selection of the requisite alloy for their diverse demands, these resources are considered to be the source of invaluable information. Sources with concise pedantic data on Brass Copper Alloy chemical compositions, grade differences and performance specs are now readily available on-line. This helps the industrially aware person to take informed decisions about materials handling.
Bronze alloy of aluminium is generally named an aluminium bronze due to its popularity for corrosion resistance and high strength. More often than not copper coils of 90%, in addition to aluminum of 10%, and also with small amounts of other elements such as iron, nickel and many others, offers steel one of the best mechanical properties. The addition of aluminium provides better strength while copper assures very good resisting quality to corrosion, giving it excellent performance in the building of valves, bearings, and marine applications. The composition of the specific alloy may differ based-on the specific properties sought by the end user of the alloy, but the combination of copper and aluminium remains the distinct characteristic of aluminium bronzes.
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 | - |
UNS No | Common Name | Colour |
---|---|---|
C11000 | ETP Copper | Soft Pink |
C21000 | 95/5 Gilding Metal | Red Brown |
C22000 | 90/10 Gilding Metal | Bronze Gold |
C23000 | 85/15 Gilding Metal | Tan Gold |
C26000 | 70/30 Brass | Green Gold |
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