Product
Product Details
CAC406 Bronze Casting
CAC406 Bronze Casting is a gunmetal (leaded tin-zinc bronze) specified under JIS H 5111 CAC406 (formerly BC6), containing nominally 83% copper, 7% tin, 3% lead, and 7% zinc — the Japanese equivalent of the internationally popular leaded gunmetal. It combines good castability, pressure tightness, strength, and machinability. Indicative price: US$ 8.80/kilogram.
CAC406 Chemical Composition (JIS H 5111)
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | rem | — |
| Tin (Sn) | 6.0 | 8.0 |
| Zinc (Zn) | 5.0 | 8.0 |
| Lead (Pb) | 2.0 | 5.0 |
| Nickel (Ni) | — | 2.0 |
| Iron (Fe) | — | 0.30 |
CAC406 Mechanical Properties (Sand Cast – JIS H 5111)
| Property | Value |
|---|---|
| Tensile Strength | 245 MPa min |
| Yield Strength (0.2%) | 95 MPa min |
| Elongation | 15% min |
| Brinell Hardness | 65 HB typical |
| Density | 8.85 g/cm³ |
International Equivalents of CAC406
| Standard | Designation | Common Name |
|---|---|---|
| Japan – JIS H5111 | CAC406 (formerly BC6) | Gunmetal |
| ISO 1338 | CuSn6Zn6Pb3 | Leaded Gunmetal |
| Europe – EN 1982 | CC482K | CuSn7Zn2Pb3 |
| Germany – DIN | 2.1090 | CuSn7ZnPb |
| UK – BS 1400 | LG2 | Ounce Metal |
| USA – UNS | C92200 / C93200 | Steam Bronze / Bearing Bronze |
Typical Applications
CAC406 gunmetal castings are used for: general engineering valve bodies, pump bodies and impellers, water and steam pipe fittings, marine hardware, bearing housings, pipe flanges, and general industrial castings for Japanese and international markets.