Product
Product Details
C93800 Tin Bronze Casting
C93800 Tin Bronze Casting (UNS C93800), known as High Leaded Tin Bronze 78-7-15, contains nominally 78% copper, 7% tin, and 15% lead. The very high lead content gives superior embeddability and conformability for heavily loaded journal bearing applications. Indicative price: US$ 9.80/kilogram (subject to quantity and specification).
C93800 Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 75.0 | 79.0 |
| Tin (Sn) | 6.3 | 7.5 |
| Lead (Pb) | 13.0 | 16.0 |
| Zinc (Zn) | — | 0.80 |
| Nickel (Ni) | — | 0.50 |
| Iron (Fe) | — | 0.15 |
C93800 Mechanical Properties (Sand Cast – ASTM B584)
| Property | Value |
|---|---|
| Tensile Strength | 172 MPa (25,000 psi) min |
| Yield Strength | 83 MPa (12,000 psi) min |
| Elongation | 12% min |
| Brinell Hardness | 45 HB typical |
| Density | 9.25 g/cm³ |
| Melting Range | 829–999°C (1525–1830°F) |
International Equivalents of C93800
| Standard | Designation | Common Name |
|---|---|---|
| USA – UNS | C93800 | High Leaded Tin Bronze (78-7-15) |
| UK – BS 1400 | LB2 | High Leaded Bronze |
| Europe – EN 1982 | CC496K | CuPb15Sn7 |
| Germany – DIN | 2.1182 | CuPb15Sn |
| ISO 1338 | CuSn7Pb15 | High Lead Bronze |
| Japan – JIS H5111 | CAC604 | High Leaded Bronze |
Typical Applications
C93800 high leaded tin bronze castings are used for: heavily loaded journal bearings, crankshaft and crosshead bearings, diesel engine bearing liners, heavy machinery bearings, and applications subject to shock loading with good embeddability requirements.