Sunrise Metals

Phosphor Bronze Round Bar – Specifications 1. Material Grades Commonly supplied grades: • C51000 / C51100 – Standard phosphor bronze • C51900 / C52400 – High strength, corrosion-resistant • C54400 – Bearing and spring applications ⸻ 2. Chemical Composition (Typical – C51000) • Copper (Cu): Balance (~88–95%) • Tin (Sn): 5–10% (strength and corrosion resistance) • Phosphorus (P): 0.01–0.35% (improves wear resistance and stiffness) • Lead (Pb): ≤ 0.05% (optional for machinability) ⸻ 3. Size Range • Diameter: 6 mm to 200 mm • Length: Standard 3 m / 6 m • Custom cut lengths available Forms: Hot rolled, cold drawn, or turned/peened for precision. ⸻ 4. Mechanical Properties (Typical – C51000) • Tensile Strength: 350–600 MPa • Yield Strength: 200–400 MPa • Elongation: 10–30% • Hardness: 70–120 HB (depending on temper) ⸻ 5. Features • Excellent corrosion resistance (marine and industrial) • High fatigue and wear resistance • Good electrical and thermal conductivity • Non-sparking and anti-magnetic • Easy to machine, cut, and fabricate ⸻ 6. Applications • Bearings, bushings, and washers • Springs and fasteners • Electrical terminals and connectors • Marine hardware and fasteners • Pumps, valves, and precision instruments • Coins, medals, and decorative components