Plain IS 318 (Grade LTB2) Powder Coated Bronze Gun Metal Bush

A Gunmetal Bush, also known as a Gunmetal Bearing or Gunmetal Sleeve, is a cylindrical mechanical component used primarily to reduce friction and wear between moving parts, particularly rotating or sliding shafts and housings. Made from gunmetal, a type of bronze alloy, these bushes offer excellent wear resistance, corrosion resistance, and good machinability, making them ideal for heavy-duty and high-performance industrial applications.

Gunmetal is a copper-based alloy, traditionally composed of:

• Copper (Cu): ~85–88%

• Tin (Sn): ~4–10%

• Zinc (Zn): ~2–5%

• Sometimes with traces of lead (Pb) for improved machinability

It’s known for its excellent casting properties, high wear resistance, and good corrosion resistance, especially in marine or chemical environments.