Product
Product Details
LG2 Bronze Alloy Casting
LG2 Bronze Alloy Casting is the most widely used leaded gunmetal specified under BS 1400 LG2, containing nominally 85% copper, 5% tin, 5% lead, and 5% zinc — the classic 85-5-5-5 “ounce metal” composition. LG2 offers excellent pressure tightness, good machinability, and versatility across a wide range of industrial applications. Indicative price: US$ 8.50/kilogram.
LG2 Chemical Composition (BS 1400)
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 83.0 | 87.0 |
| Tin (Sn) | 4.0 | 6.0 |
| Lead (Pb) | 4.0 | 6.0 |
| Zinc (Zn) | 4.0 | 6.0 |
| Nickel (Ni) | — | 2.0 |
| Iron (Fe) | — | 0.20 |
LG2 Mechanical Properties (Sand Cast – BS 1400)
| Property | Value |
|---|---|
| Tensile Strength | 270 MPa min |
| Yield Strength | 120 MPa min |
| Elongation | 16% min |
| Brinell Hardness | 65 HB typical |
| Density | 8.85 g/cm³ |
International Equivalents of LG2 Bronze
| Standard | Designation | Common Name |
|---|---|---|
| UK – BS 1400 | LG2 | Leaded Gunmetal (85-5-5-5) |
| USA – UNS | C83600 | Ounce Metal |
| Europe – EN 1982 | CC491K | CuSn5Zn5Pb5 |
| Germany – DIN | 2.1096 | CuSn5ZnPb |
| ISO 1338 | CuSn5Zn5Pb5 | Leaded Gunmetal |
| Japan – JIS H5111 | CAC406 | Gunmetal |
Typical Applications
LG2 bronze alloy castings are used for: general engineering valve bodies and fittings, pump housings, water and steam pipe fittings, automotive components, bearing housings, electrical accessories, and marine hardware.