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Tin Bronze Casting
Tin Bronze castings are copper-tin alloy components produced by sand casting, centrifugal casting, continuous casting, and investment casting processes. Electrical Accessories India manufactures tin bronze castings conforming to US ASTM/UNS standards, British BS standards, European EN/DIN standards, ISO standards, and Japanese JIS standards for bearings, bushings, gears, valve bodies, marine fittings, and industrial machinery components. Indicative price: US$ 8.50–14.00/kilogram (subject to alloy, quantity, and specification).
What is Tin Bronze?
Tin bronze is a copper alloy containing tin as the primary alloying element, typically ranging from 4% to 20% tin by weight. The addition of tin significantly improves hardness, strength, corrosion resistance, and wear resistance compared to pure copper. Tin bronzes are among the oldest known engineering alloys and remain critical materials for demanding mechanical and marine applications today.
International Tin Bronze Casting Alloy Standards
Tin bronze casting alloys are specified under multiple international standards systems. The table below shows the primary standard families covered:
| Standard Body | System | Examples |
|---|---|---|
| USA – ASTM / UNS | C9xxxx series | C90300, C90500, C90700, C91100, C93200 |
| UK – BS | LG, PB, CT designations | LG1, LG2, LG4, PB1, PB2, CT1 |
| Europe – EN | CC4xx series | CC480K, CC481K, CC482K, CC483K |
| Germany – DIN | 2.1xxx series | 2.1050, 2.1052, 2.1096 |
| International – ISO | CuSnx designations | CuSn10, CuSn12, CuSn6Zn6Pb3 |
| Japan – JIS | CAC4xx series | CAC402, CAC403, CAC406, CAC407 |
Tin Bronze Alloy Sub-Pages
Click on any alloy below to view full composition, mechanical properties, international equivalents, and casting specifications:
US / UNS Alloys (ASTM B584)
- C90300 Tin Bronze Casting – Navy G Bronze (Cu-88, Sn-8, Zn-4)
- C90500 Tin Bronze Casting – Gun Metal (Cu-88, Sn-10, Zn-2)
- C90700 Tin Bronze Casting – High Tin Bronze (Cu-89, Sn-11)
- C91100 Tin Bronze Casting – High Tin Bronze (Cu-84, Sn-16)
- C91300 Tin Bronze Casting – High Tin Bronze (Cu-81, Sn-19)
- C92200 Tin Bronze Casting – Steam Bronze (Cu-88, Sn-6, Pb-1.5, Zn-4.5)
- C92300 Tin Bronze Casting – Leaded Tin Bronze (Cu-87, Sn-8, Pb-1, Zn-4)
- C92600 Tin Bronze Casting – Leaded Tin Bronze (Cu-87, Sn-10, Pb-1, Zn-2)
- C92700 Tin Bronze Casting – Leaded Tin Bronze (Cu-88, Sn-10, Pb-2)
- C93200 Tin Bronze Casting – Bearing Bronze (Cu-83, Sn-7, Pb-7, Zn-3)
- C93700 Tin Bronze Casting – High Leaded Tin Bronze (Cu-80, Sn-10, Pb-10)
- C93800 Tin Bronze Casting – High Leaded Tin Bronze (Cu-78, Sn-7, Pb-15)
British Standard (BS) Alloys
- LG1 Bronze Alloy Casting – BS 1400 LG1 Leaded Gunmetal
- LG2 Bronze Alloy Casting – BS 1400 LG2 Leaded Gunmetal
- LG4 Bronze Alloy Casting – BS 1400 LG4 Leaded Gunmetal
- PB1 Bronze Alloy Casting – BS 1400 PB1 Phosphor Bronze
- PB2 Bronze Alloy Casting – BS 1400 PB2 Phosphor Bronze
- CT1 Bronze Alloy Casting – BS 1400 CT1 Coinage Bronze
European EN / DIN Alloys
- CC480K Bronze Casting – EN 1982 CuSn3Zn8Pb5 (DIN 2.1080)
- CC481K Bronze Casting – EN 1982 CuSn5Zn5Pb5 (DIN 2.1096)
- CC482K Bronze Casting – EN 1982 CuSn7Zn2Pb3 (DIN 2.1090)
- CC483K Bronze Casting – EN 1982 CuSn7Zn4Pb6 (DIN 2.1093)
- CC490K Bronze Casting – EN 1982 CuSn10 (DIN 2.1050)
- CC491K Bronze Casting – EN 1982 CuSn10Pb2 (DIN 2.1052)
- CC492K Bronze Casting – EN 1982 CuSn11Pb2 (DIN 2.1060)
ISO Alloys
- CuSn6Zn6Pb3 Bronze Casting – ISO 1338
- CuSn10 Bronze Casting – ISO 1338
- CuSn12 Bronze Casting – ISO 1338
- CuSn12Pb1 Bronze Casting – ISO 1338
Japanese JIS Alloys
- CAC402 Bronze Casting – JIS H 5111 Tin Bronze
- CAC403 Bronze Casting – JIS H 5111 Tin Bronze
- CAC406 Bronze Casting – JIS H 5111 Gunmetal
- CAC407 Bronze Casting – JIS H 5111 Gunmetal
Typical Applications
Tin bronze castings are used extensively across industrial, marine, and engineering sectors including: bearings and bushings for heavy machinery, pump bodies and impellers, valve bodies and fittings, gears and worm wheels, marine propellers and fittings, steam and water fittings, electrical switchgear components, and anti-friction bearing cages.
Why Choose Electrical Accessories India for Tin Bronze Castings?
Electrical Accessories India supplies tin bronze castings with full material traceability, third-party inspection, and compliance to ASTM, BS, EN, ISO, and JIS standards. Our castings are available in sand cast, centrifugal cast, continuous cast, and investment cast forms with CNC machining to finished dimensions.