CuSn9P thermal spray wire is a high-tin phosphor bronze alloy wire containing approximately 9% tin and a small amount of phosphorus. It is designed for thermal spraying to provide heavy-duty wear-resistant and corrosion-resistant coatings.
Compared with CuSn1 and CuSn5P, CuSn9P offers significantly higher hardness, better load-bearing capacity, and improved resistance to sliding wear, making it suitable for demanding service conditions.
It is suitable for arc spray and flame spray processes, producing dense coatings with good adhesion for surface protection and dimensional restoration.
High-tin phosphor bronze (CuSn9P) for heavy-duty wear resistance
Excellent corrosion resistance, including in marine environments
High load-bearing capacity and good anti-galling performance
Strong adhesion and uniform coating structure
Suitable for arc spray and flame spray processes
Stable wire feeding and consistent coating quality
| Element | Cu | Sn | P | Others |
|---|---|---|---|---|
| wt.% | Balance | 8.5 – 9.5 | 0.03 – 0.35 | ≤ 0.5 |
| Item | Specification |
|---|---|
| Product | CuSn9P Thermal Spray Wire |
| Alloy | Phosphor Bronze |
| Diameter | 1.6 mm / 2.0 mm / 2.5 mm / 3.0 mm (customizable) |
| Process | Arc Spray / Flame Spray |
| Coating Thickness | 50 – 2000 μm (customizable) |
| Melting Range | Approx. 900 – 1020°C |
| Surface Finish | Bright / copper-coated optional |
| Packing | Spool / Coil / Drum |
| MOQ | Negotiable |
Heavy-duty bearings and bushings
Sliding and friction surfaces
Shafts and journals under high load
Pump and valve components
Surface rebuilding and dimensional restoration
Much higher wear resistance than CuSn1 and CuSn5P
Excellent performance under heavy load and sliding conditions
Good corrosion resistance in harsh environments
Easy spraying with stable wire feeding
Customizable diameter and packaging
Stable quality with fast delivery
Supply Capacity: 5,000 – 10,000 kg per month (adjustable based on order)
Lead Time: 10–25 days depending on specifications and quantity
Packing: Standard export packing in cartons or wooden crates; custom packaging available upon request
Please advise your spraying process (arc or flame), wire diameter, coating thickness, and working conditions. We will recommend the suitable CuSn9P thermal spray wire for your application.