Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of C35800 Phosphor Bronze Supplier | High Strength Copper Alloy Bar, Plate & Tube Manufacturer in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
C35800 is a high-lead phosphor bronze alloy designed for excellent machinability, superior wear resistance, and reliable load-bearing performance. Compared with C35300 and C35600, C35800 contains even higher lead content, making it one of the best choices for high-speed precision machining in industrial and automotive applications.
Widely used for bearings, bushings, gears, pressure-tight components, washers, and electrical connectors, C35800 delivers a strong balance of strength, fatigue resistance, and corrosion resistance.
This alloy is supplied globally in sheets, rods, bars, tubes, strips, and wires, meeting ASTM B103 / ASTM B505 / UNS C35800 standards.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
What is C35800 Phosphor Bronze?
C35800 is a grade within the phosphor bronze family, where:
Copper (Cu) = base metal
Tin (Sn) = increases strength & corrosion resistance
Phosphorus (P) = improves wear resistance & fatigue performance
👉 The addition of phosphorus is what gives this alloy its low friction and excellent anti-wear properties, making it superior to many standard bronzes.
Type: Copper-Tin-Lead Alloy
Key Properties: High Machinability • Wear Resistant • Load-Bearing • Corrosion Resistant
Forms: Sheet • Rod • Tube • Strip • Wire
Applications: Bearings • Bushings • Gears • Valves • Connectors
Standards: ASTM B103 • ASTM B505 • UNS C35800
Chemical Composition (Typical %)
| Element | Cu | Sn | Pb | P | Zn | Fe | Others |
|---|---|---|---|---|---|---|---|
| Content | Balance | 8.0–10.0 | 3.5–5.5 | 0.03–0.35 | ≤0.30 | ≤0.20 | ≤0.10 |
Highlight: Lead content up to 5.5%, giving C35800 one of the highest machinability levels in the phosphor bronze family.
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 420–520 MPa |
| Yield Strength | 250–350 MPa |
| Elongation | 8–16% |
| Hardness | 110–150 HB |
| Density | 8.8 g/cm³ |
| Electrical Conductivity | 10–16 % IACS |
Available Specifications (Metric + Imperial)
| Product Form | Dimensions (Metric) | Dimensions (Imperial) | Notes |
|---|---|---|---|
| Sheet / Plate | 0.2–12 mm | 0.008"–0.50" | Custom thickness & cut-to-size |
| Rod / Bar | 3–150 mm | 0.12"–6" | Hot-rolled / cold-drawn |
| Tube | OD 6–80 mm | 0.24"–3.15" | Seamless or welded |
| Strip | 0.1–3.0 mm | 0.004"–0.12" | Precision rolling |
| Wire | 0.5–8 mm | 0.02"–0.31" | High surface finish |
Dimensional Tolerances: ASTM B103 / ASTM B505
Surface: Mill finish, bright drawn, polished
Key Features
Exceptional Machinability (due to high Pb content 3.5–5.5%)
High Wear Resistance, suitable for rotating and sliding parts
Excellent Fatigue Strength for cyclic-load applications
Good Corrosion Resistance in water, oil, industrial atmospheres
Stable Dimensional Accuracy during high-speed machining
Balanced Strength & Ductility for precision components
Applications
Heavy-duty bearings & bushings
Automotive and machinery gears & worm wheels
Hydraulic pump parts
Electrical connectors & terminals
Marine and industrial valve parts
Washers, thrust washers & guiding components
High-speed machined parts requiring tight tolerance
Inspection & Quality Assurance
Chemical analysis: Optical spectrometer + wet chemistry
Mechanical tests: Tensile, hardness, yield strength
Ultrasound / Eddy current non-destructive testing
Surface inspection: Roughness, cracks, pits, inclusions
Dimensional tolerance check per ASTM B103 / B505
Full certification: ISO 9001 • SGS • TUV • Mill Test Certificate (MTC)
Product Delivery Standards
Packing: Waterproof paper + plastic + fumigated wooden case
Marking: Grade • Size • Lot No. • Heat No. • Standard
Lead Time: 7–25 days depending on quantity
Customization: Cutting, CNC machining, polishing, OEM/ODM
Export Support: CO / Form E / Form F / Form A available
For C35800 Phosphor Bronze pricing, samples, technical support, or custom processing:
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: Why choose C35800 instead of C35300 or C35600?
A1: Because C35800 contains the highest lead content (up to 5.5%), offering:
Best machinability
Lowest tool wear
Highest productivity for CNC machining
Ideal for mass-production components needing tight tolerances.
Q2: Is C35800 suitable for high-load bearings?
A2: Yes. Its wear resistance + lubricity from lead + tin-bronze base strength make it highly suitable for medium to heavy-duty bearings and bushings.
Q3: Can C35800 be welded or brazed?
A3:
Brazing and soldering: Recommended
Welding: Possible but not ideal, due to high Pb content which affects fusion zones
If welding is necessary, controlled heat input and post-work annealing are advised.
Q4: How does C35800 perform in marine or chemical environments?
A4: It maintains excellent corrosion resistance in seawater, lubricant oils, weak acids, and industrial gases. For strong acid or alkaline conditions, protective plating is suggested.
Q5: Which forms are best for gears and machined bushings?
A5:
Cold-drawn rods → Best for precision gears
Continuous cast rods → Best for bushings and bearings
Sheets/Strips → Best for stamped washers
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