As a specialized 40% bronze PTFE round bar supplier, our team works with engineers, maintenance departments, and OEMs to provide rods that deliver consistent mechanical performance and long service life in demanding environments. The material combines the excellent chemical resistance and low friction of PTFE with 40% bronze powder by weight, which improves compressive strength, thermal conductivity, and wear resistance. In bearing applications, the 40% bronze filled PTFE rod for bearing is used to machine sleeve bearings, thrust washers, wear pads, and guide rails because it reduces friction while carrying higher loads than unfilled PTFE. For applications where heat generation is a limiting factor, the bronze PTFE rod high thermal conductivity formulation provides faster heat transfer away from the contact zone, reducing thermal expansion and preventing premature component failure. The heavy duty bronze filled PTFE rod is designed for structural parts that experience continuous compression, high static loads, or impact, offering superior creep resistance and dimensional accuracy over extended operating periods. In hydraulic and pneumatic systems, the bronze filled PTFE rod for hydraulic cylinders, pumps, and valve components ensures a smooth, low-friction sliding surface that resists mineral oils, synthetic hydraulic fluids, and many aggressive chemicals. All rods are produced in compliance with international quality standards and can be supplied with mill test reports, material certificates, and batch traceability upon request. Standard product specifications for our 40% bronze PTFE round bars are listed below:
| Property | Test Method | Typical Value |
|---|---|---|
| Filler content | Internal QC | 40% ±2% by weight |
| Specific gravity | ASTM D792 | 3.10 g/cm³ |
| Tensile strength | ASTM D638 | ≥ 14 MPa |
| Elongation at break | ASTM D638 | ≥ 150% |
| Compressive strength | ASTM D695 | ≥ 28 MPa |
| Hardness | ASTM D2240 | 60–65 Shore D |
| Thermal conductivity | ASTM C177 | 0.45–0.65 W/m·K |
| Service temperature | Continuous | -200°C to +260°C |
| Coefficient of friction | Dynamic | 0.08–0.14 |
40% Bronze PTFE Round Bar is available from stock in popular diameters and can be machined to custom dimensions with short lead times. The rods are made from compression molded and sintered billets, then centerless ground or skived to achieve tight diameter tolerances and a smooth surface finish. This manufacturing process produces a homogeneous bronze distribution, which ensures consistent wear characteristics from the outer surface to the core of the bar. The material offers a working temperature range from -200°C to +260°C, low moisture absorption, and excellent resistance to solvents, acids, and alkalis. Typical uses include piston rings, rotary seals, slide bearings, expansion joints, electrical insulators, and high-load wear components. We supply bars in standard lengths of 300 mm, 500 mm, and 1000 mm, with custom lengths up to 1200 mm available on request. For large diameters or special tolerance requirements, our production team can adjust the machining process to match your drawings. Each order is packed in protective wrapping, and heavy bars are shipped in wooden crates to prevent damage during transit. If you need non-standard sizes, specific filler content, or custom packaging for export, we can accommodate these requirements with fast turnaround.
