60% Bronze-Powder-Filled Teflon PTFE Tube
Model:KXT BU980-60
60% bronze-powder-filled PTFE tube (KXT BU980-60) for linear bearings, hydraulic seals, piston rings, wear pads and bushings. Material: PTFE + 60% bronze powder. Specific gravity 3.2–3.8 g/cm³, tensile strength 10–15 MPa, elongation 100–150%, Shore D 65–70, temperature range -200 to +260 °C. Best wear properties of any filled PTFE; good thermal and electrical conductivity; not recommended for strong acid or alkali service. Custom sizes to drawing. Reply within 2 business hours.
Model KXT BU980-60
60% Bronze-Powder-Filled Teflon PTFE Tube for High-Load Bearings, Seals and Wear Parts
When virgin PTFE tube wears too fast, creeps under load or cannot carry away frictional heat, the answer is a filled PTFE compound. Kaxite's KXT BU980-60 tube is filled with 60% bronze powder — the highest bronze loading we produce — giving it the best wear resistance of any filled PTFE grade, higher compressive strength and hardness, better dimensional stability, and improved thermal and electrical conductivity.
- Linear bearings and bushings — high-load sliding contact
- Hydraulic seals and piston rings — high-speed rubbing with heat generation
- Wear pads and guide ways — long-life sliding surfaces
- Extrusion rings and sliders — deformation resistance under load
Material: PTFE + 60% bronze powder. Specific gravity 3.2–3.8 g/cm³. Tensile strength 10–15 MPa. Elongation 100–150%. Shore D hardness 65–70. Temperature range -200 °C to +260 °C. Not recommended for strong acid or alkali service — see the warning below.
Send your ID, OD, length and application details — our technical team replies with a recommendation and price within 2 business hours. PDF data sheet available for download.
At a glance
KXT BU980-60 PTFE Tube
- 60%bronze powder filler
- 3.2–3.8g/cm³ specific gravity
- 10–15 MPatensile strength
- 65–70Shore D hardness
- -200~+260°C temperature range
Best wear resistance of any filled PTFE. Custom ID, OD and length to drawing.
60%Bronze filler
3.2–3.8g/cm³
10–15 MPaTensile strength
65–70Shore D
-200~+260°C
Important: bronze-filled PTFE is not for aggressive chemical service
The PTFE matrix is chemically inert, but the bronze filler is attacked by strong acids and alkalis. 60% bronze-powder-filled PTFE tube should not be specified for service in hydrochloric acid, sulfuric acid, nitric acid, caustic soda or similar aggressive media — the bronze will corrode, the tube will pit and the wear performance will fail.
If your application needs chemical resistance, choose virgin PTFE tube, carbon fiber-filled PTFE tube or graphite-filled PTFE tube instead. Tell us the media and we will recommend the correct grade.
Who makes this bronze-filled PTFE tube Reviewed by the Kaxite sealing engineering team
Kaxite Sealing (Ningbo Kaxite Sealing Materials Co., Ltd.) has manufactured PTFE tubes, PTFE rods, compression sheets, gaskets and hydraulic sealing components since 1990. Our bronze-filled PTFE tubes are extruded or moulded from PTFE compound blended with 60% bronze powder, and machined to the required ID, OD and length.
Every batch is checked for density, tensile strength and dimensional accuracy. Material declaration and batch traceability are available on request, a PDF data sheet is available for download, and third-party inspection (SGS, BV, TÜV) can be arranged or hosted at additional cost.
- 30+Years PTFE manufacturing
- 60%Bronze filler loading
- BatchMaterial & dimensional testing
- SGS/BV/TÜVThird-party inspection supported
What Buyers Get From Kaxite
01Best wear of any filled PTFE
60% bronze filling gives this grade the highest wear resistance of any filled PTFE compound — longer service life in high-load sliding and rubbing applications.
02High compressive strength
Bronze filling raises compressive strength and hardness (Shore D 65–70) far above virgin PTFE, so the tube resists deformation under heavy loads.
03Lower creep and cold flow
The bronze filler reinforces the PTFE matrix and much reduces creep and cold flow, giving better dimensional stability than virgin PTFE in loaded service.
04Good thermal conductivity
Bronze filler carries frictional heat away from the contact surface, which extends service life in high-speed rubbing contacts.
05Custom sizes to drawing
Extruded or moulded tube cut and machined to your required ID, OD and length. No fixed size catalogue — every tube is produced to your requirement.
06Honest chemistry advice
Bronze-filled PTFE has poor chemical resistance in strong acids and alkalis. We will tell you honestly when another filled grade — carbon, graphite or virgin PTFE — is the better choice for your media.
What 60% Bronze Filling Does to PTFE
Virgin PTFE is chemically inert, has the lowest friction of any solid polymer, and is easy to machine — but it is soft, creeps under load, and has poor thermal conductivity. Bronze powder is added to PTFE to fix these limitations:
- Wear resistance. Bronze particles reinforce the PTFE surface, giving the best wear properties of any filled PTFE. This is the single biggest reason to choose 60% bronze-filled PTFE for a sliding or rubbing component.
- Compressive strength and hardness. The bronze filler raises compressive strength and Shore D hardness far above virgin PTFE, so the tube can carry higher loads without deforming.
- Creep and cold flow. Virgin PTFE creeps under sustained load, which changes the dimensions of a bearing or seal over time. Bronze filling much reduces this, giving better long-term dimensional stability.
- Thermal conductivity. The bronze filler conducts heat away from the contact surface. In high-speed rubbing applications this means lower surface temperature, less thermal degradation and longer life.
- Electrical conductivity. Unlike virgin PTFE, bronze-filled PTFE is electrically conductive — useful in anti-static applications.
The trade-off is chemical resistance. The bronze filler is attacked by strong acids and alkalis, so 60% bronze-filled PTFE should not be used in aggressive chemical service. See the warning above for the correct grade to choose instead.
Compare Filled PTFE Tube Grades
Kaxite supplies PTFE tube in several filled and unfilled grades. Each has a different balance of wear resistance, compressive strength, thermal conductivity and chemical resistance.
| Material | Wear resistance | Compressive strength | Thermal conductivity | Chemical resistance | Best for |
|---|---|---|---|---|---|
| 60% Bronze-filled PTFE (KXT BU980-60) | Best of any filled PTFE | High | Good | Poor in acids and alkalis | High-load bearings, seals, wear pads |
| Virgin PTFE | Low | Low | Poor | Excellent | Aggressive chemical service, low-load sealing |
| 5% Glass fiber-filled PTFE | Moderate | Moderate | Poor | Good | General purpose, low cost |
| Carbon fiber-filled PTFE | Good | Moderate | Moderate | Excellent | Chemical service, anti-static |
| Graphite-filled PTFE | Good | Moderate | Moderate | Excellent | Chemical and hot water service |
The table is a guide only. Actual performance depends on load, speed, temperature and counter-surface. Tell us your operating conditions and we will confirm the correct grade.
Technical Specifications
- Model
- KXT BU980-60
- Material
- PTFE + 60% bronze powder
- Specific gravity
- 3.2–3.8 g/cm³
- Tensile strength
- 10–15 MPa
- Elongation at break
- 100–150%
- Shore D hardness
- 65–70
- Temperature range
- -200 °C to +260 °C
- Wear resistance
- Best wear properties of any filled PTFE grade
- Thermal conductivity
- Improved over virgin PTFE due to bronze filler
- Electrical properties
- Electrically conductive
- Creep and cold flow
- Lower than virgin PTFE; better dimensional stability
- Chemical resistance
- Poor in strong acids and alkalis — not recommended for aggressive chemical service
- Size range
- Custom ID, OD and length to drawing or sample; extruded or moulded tube
- Certificates
- Material declaration and batch traceability on request; third-party inspection (SGS / BV / TÜV) supported; PDF data sheet available
Note on application matching: Bronze-filled PTFE is not a universal upgrade over virgin PTFE. It is better than virgin PTFE in wear, compressive strength, creep resistance and thermal conductivity, but worse in chemical resistance. If your application combines high load with aggressive chemicals, the correct answer is usually carbon-filled or graphite-filled PTFE, not bronze-filled. Tell us the media, load, speed and temperature and we will recommend the right grade — including when that means not selling you this one.
Where 60% Bronze-Filled PTFE Tube Is Used
60% bronze-powder-filled PTFE tube is specified wherever a sliding or rubbing component has to carry high load or run at high speed, and the media is not aggressively corrosive. Typical installations include:
Linear bearingsSliding contact
Hydraulic sealsHigh-speed rubbing
Extrusion ringsHigh pressure
Piston ringsWear resistance
Guide waysLong-life sliding
Wear padsLoad bearing
BushingsBearing service
SlidersLow friction guide
Related products in the same PTFE family include virgin PTFE tube, molded PTFE tube, bronze-powder-filled PTFE tube, 5% glass fiber-filled PTFE tube, carbon fiber-filled PTFE tube, graphite-filled PTFE tube, PTFE rods and PTFE guide strips.
Packing and Shipping
60% bronze-powder-filled PTFE tube is supplied in protective film, packed flat in cartons or wooden cases suitable for sea and air freight. Custom length cutting is available on request. Customer labels, size markings and packing lists are available on request. See packaging & shipping.
Shipping is by sea, rail or air depending on your schedule and destination. Standard sizes normally ship within 7–15 working days of order confirmation. Custom dimensions are quoted against real production capacity.
Buyer FAQ
What is 60% bronze-powder-filled PTFE tube used for?
60% bronze-powder-filled PTFE tube is used for high-load, high-wear bearing and seal applications: linear bearings, hydraulic seals, extrusion rings, piston rings, guide ways, wear pads, bushings, bearings and sliders. It is chosen when the application demands the best wear resistance of any filled PTFE grade, combined with high compressive strength and good thermal conductivity.
What is the difference between bronze-filled, glass-fiber-filled and carbon-filled PTFE?
Bronze-filled PTFE (this product) gives the best wear resistance and highest compressive strength of any filled PTFE, with good thermal and electrical conductivity, but has poor chemical resistance in strong acids and alkalis. Glass-fiber-filled PTFE has moderate wear resistance, better chemical resistance than bronze and lower cost, but lower thermal conductivity. Carbon-filled PTFE has good wear and excellent chemical resistance, and is electrically conductive, but has lower compressive strength than bronze-filled PTFE.
What is the operating temperature range?
The 60% bronze-powder-filled PTFE tube operates from -200 °C to +260 °C. The upper limit is the PTFE base material. Bronze filling improves thermal conductivity, which helps the tube survive high-speed rubbing contact, but the temperature limit itself is set by the PTFE matrix.
Is bronze-filled PTFE chemically resistant?
No — this is the main limitation of bronze-filled PTFE. The PTFE matrix is chemically inert, but the bronze filler is attacked by strong acids and alkalis. Bronze-filled PTFE should not be specified for aggressive chemical service. If your application needs chemical resistance, choose virgin PTFE, carbon-filled PTFE or graphite-filled PTFE instead.
What sizes are available?
Tube is supplied as extruded or moulded stock in custom ID, OD and length to drawing or sample. Tell us the required ID, OD and length and we will confirm the standard or custom size. There is no fixed size catalogue — every tube is cut to your requirement.
How does the tube compare to virgin PTFE tube?
Compared with virgin PTFE tube, 60% bronze-filled PTFE tube has higher compressive strength, higher hardness (Shore D 65–70 vs. approx. 55 for virgin PTFE), lower creep and cold flow, much better wear resistance under high load, and better thermal conductivity. Virgin PTFE wins only on chemical resistance and lower cost.
Do you supply a PDF data sheet?
Yes. A PDF data sheet is available for download on this product page. Material declaration and batch traceability are available on request, and third-party inspection (SGS, BV, TÜV or client-nominated) can be arranged at additional cost. See our certificates.
How quickly can you quote and ship?
Send the ID, OD, length, quantity and application details. With these details we can give you a technical recommendation and price within 2 business hours. Standard sizes normally ship within 7–15 working days of order confirmation.
Request a Quotation for 60% Bronze-Filled PTFE Tube
Send us your ID, OD, length, quantity and application details — media, load, speed and temperature — and we will come back with a technical recommendation, price and realistic delivery date. If a different filled PTFE grade is a better match for your application, we will tell you.
- Tel: 0086-574-87527771
- E-mail: kaxite@seal-china.com
- Address: No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang, China
Hot Tags: 60% bronze filled PTFE tube, bronze powder filled teflon tube, KXT BU980-60 PTFE tube, high wear PTFE tube, thermally conductive PTFE tube, PTFE bearing tube, bronze PTFE hydraulic seal tube
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