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Bronze Casting Supplier: Tin Bronze C90300 For High Strength Bearings, Bushings, & Bridge Components

Erie Bronze & Aluminum is a non-ferrous copper alloy sand casting supplier specializing in copper and bronze alloy castings. Serving numerous industries, we cast a variety of non-leaded bronze alloys, including Tin Bronze C90300, or C903. Tin Bronze C903 is known for excellent soldering, good brazing capabilities, and fair machinability. Components of this alloy are capable of accepting shock and impact loads, but with reduced surface speeds, which makes them an excellent choice for high strength bushings and bearings as well as moveable bridge components. Tin bronze alloys, such as C90300, are typically found in:

  • Gears
  • High-strength bushings & bearings
  • Pump impellers
  • Piston rings
  • Steam fittings
  • Valve bodies

C90300 tin bronze sand castings are used for fixed and expansion bearings, where movement is slow or intermittent or where heavy loads are present, such as turntables for bridges and heavy construction equipment.

Choosing Tin Bronze C90300 for Your Bronze Alloy Sand Castings

Erie Bronze & Aluminum produces Tin Bronze C903 to meet casting material specifications:

  • ASTM B 584 – Standard Specification for Copper Alloy Sand Castings for General Applications
  • ASTM B 763 – Standard Specification for Copper Alloy Sand Castings for Valve Applications
  • SAE J461 – This specification is used for cast copper alloys to maintain the electrical and thermal conductivity properties, mechanical properties, yield strength, fatigue characteristics, formability, and machinability of these alloys.
  • SAE J462 – This specification focuses on cast copper alloys used in aerospace, automotive, and commercial vehicle industries.

Tin Bronze C903’s characteristics give it an edge over other metals and metal alloys, making it a versatile metal alloy for numerous fabrication practices.

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