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Bronze is primarily an alloy of copper and tin but other elements are often introduced to create different characteristics. Bronze is a very hard material that is well-suited to demanding environments. General applications include bearings, gears, clips, electrical connectors, springs, sculptures, medals and musical instruments.
There are two main types of bronze - phosphor bronze and aluminium bronze.
The introduction of phosphor creates a very hard, wear-resistant material suitable for mechanical applications.
Aluminium bronze has a high level of corrosion resistance and impact strength, properties which make it a common choice in the marine, chemical and general engineering industries. It’s low friction surface also makes it suitable for electrical components.
British Standard or Common Name | Characteristics |
PB102/CW450K | General purpose phosphor bronze for engineering components subject to friction |
PB1/CC481K | Concast leaded bronze for rods and hollows medium/heavy load bearings |
LG1/CC491K | Leaded Gun Metal modest strength for pumps, valves and bearings |
LG2/CC491K | Most widely used in the Leaded Gun Metal range |
LB4/CC494K | Concast leaded bronze rounds/hollows, medium/heavy loads |
SAE 660/CC497K | Leaded bronze used in bearings, medium speeds and pressure |
CA104/CW307G | Aluminium bronze, high strength, excellent corrosion resistance |
DEF STAN/02-833 Part 2 Issue 2 | Defence Standard for Nickel Aluminium Bronze |
NES 833/CW307G | Nickel Aluminium Bronze, more ductile alloy, good impact strength |
NES 834/CW307G | Silicon Aluminium Bronze, low magnetism, will extrude as hollow rod |
DGS 1043/CW307G | Nickel Aluminium Bronze alternative alloy to NES 833 |
DGS 1044/CW307G | Silicon Aluminium Bronze, alternative alloy to NES834 |