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/CW451K||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|