C87850 Bronze Sleeve Plain Bearings

C87850 is a silicon-copper alloy commonly used in plumbing and low-lead applications. This material is suitable for welding, brazing, and has good thermal forming properties, and is widely used in Marine products. cast bronze thrust washers are machined from continuous cast C87850 for superior quality and performance.

C87850 Sleeve (Plain) Bearings，Cast Bronze C93200 (SAE 660) Flanged METRIC Bearings offers superior quality and performance compared to the traditional C93200 (SAE660) bronze series.

Silicon bronze alloy is an eco-friendly and cost-effective bearing material, offering a lead-free alternative to C93200 without added arsenic or bismuth.

Applications

C87850 is widely used in various industrial applications due to its favorable properties:

• Plumbing: Used for faucets, plumbing fittings, and water meter cases.
• Marine Products: Suitable for components exposed to seawater due to its corrosion resistance.
• Industrial Uses: Commonly utilized in valve bodies for water systems

C87850 equivalent, QSn6.5-0.1, ASTM Casting Copper Alloy, Bronze Sleeve Plain Bearings，Fanged Bronze Bearing and Cast Bronze Bushings， Bushings and bearings have been independently tested and proven superior to other cast lead-free materials.

C87850 is a lead-free silicon bronze alloy widely used in various applications, especially in plumbing and marine environments. In China, C87850 is equivalent to the domestic standard QSn6.5-0.1.

High Performance Silicon Bronze Bearings: Comparing C87850 and QSn6.5-0.1

• C87850:
  • Composition: Primarily copper with tin, zinc, and minimal lead.
  • Applications: Plumbing fittings, marine products, and valve bodies.
  • Properties: Excellent corrosion resistance, good machinability, and high strength.
• QSn6.5-0.1:
  • Composition: Contains approximately 6.5% tin and a small amount of lead (up to 0.1%).
  • Applications: Similar to C87850, used in various bronze components requiring good wear resistance.
  • Properties: Comparable mechanical properties and corrosion resistance.
• QSn6.5-0.1 Tin-Phosphor Bronze has high strength, elasticity, wear resistance, and anti-magnetic properties. It offers good workability both in hot and cold states, and demonstrates excellent resistance to electrical spark erosion. It is weldable, brazable, and has good machinability. Additionally, it is highly corrosion-resistant in atmospheric air and freshwater.QSn6.5-0.1 is commonly used in the production of springs, spring contact pieces with good conductivity, wear-resistant and anti-magnetic components in precision instruments, such as gears, brush boxes, vibration plates, and contactors. Tin bronze is one of the least shrinking non-ferrous metal alloys during casting and is ideal for producing complex-shaped castings with clear contours and moderate airtightness requirements. Tin-phosphor bronze is highly resistant to corrosion in the atmosphere, seawater, freshwater, and steam, making it widely used in steam boilers and marine components. Phosphor bronze has excellent mechanical properties and is used for wear-resistant and elastic parts in high-precision machines. Leaded tin bronze is commonly used for wear-resistant parts and sliding bearings, while zinc tin bronze is suitable for high-gas-tightness castings.

  Composition (in %):

  Copper (Cu): Balance

  Tin (Sn): 6.0–7.0

  Lead (Pb): ≤0.02

  Phosphorus (P): 0.10–0.25

  Aluminum (Al): ≤0.002

  Iron (Fe): ≤0.05

  Silicon (Si): ≤0.002

  Antimony (Sb): ≤0.002

  Bismuth (Bi): ≤0.002

  Note: ≤0.1% (impurities)

  Tensile Strength (σb) (MPa): ≥470

Both materials are utilized in similar applications due to their favorable characteristics, particularly in environments where lead content is restricted due to health regulations.