Custom Machined Wear-resistant PTFE Round Rod Bar Carbon Fiber Loaded PTFE Rod

Product Description

Product Description

Carbon Fiber Loaded PTFE Rod

Carbon-fiber filled PTFE rods are divided into extruded rods and compression-molded rods. The standard carbon-fiber filling ratios are 15%, 20% and 25%, and finished products are black. Carbon-fiber modification greatly reduces cold-flow creep, improves compression resistance and wear resistance, delivers better thermal conductivity than glass-fiber filled PTFE, and provides anti-static dissipation performance. It retains PTFE's characteristics of wide-temperature-range resistance to corrosion and suits working conditions of high-speed dry friction. Extruded rods are applied for long continuous blanks with small and medium diameters, while compression-molded rods are suitable for large-diameter, high-density blanks and used for CNC-machined bearings, thrust rings and valve components.

specification:

φ18*100	φ70*100-200
φ20*100	φ77*305
φ25*100	φ75*100-200
φ30*100-300	φ80*100-200
φ35*100-300	φ85*100-200
φ40*150-200	φ90*100-200
φ45*150-200	φ95*100-200
φ50*150-300	φ100*100-200
φ55*150-200	φ110*100-200
φ60*150-200	φ115*300
φ65*150-200	φ120*100-200
φ25*200	φ125*100
φ40*200	φ130*100-200
φ50*200	φ140*100
φ60*200	φ150*100
φ65*200	φ160*100
φ70*200	φ170*100-200
φ75*200	φ180*100
φ80*200	φ185*100
φ90*300	φ190*300
φ95*200	φ190*100
φ100*300	φ220*100
φ110*300	φ210*100
φ120*300	φ230*100-200
φ130*300	φ255*100
φ140*300	φ250*110
φ150*300	φ280*100-200
φ160*300	φ300*100
φ170*300	φ305*100
φ180*300	φ310*100
φ185*300	φ320*200
φ200*300	φ320*100-200
φ220*300	φ330*100
φ230*300	φ350*300
φ250*300	φ355*210
φ260*300	φ370*160
φ270*300	φ420*150
φ280*300	φ470*230
φ300*300	φ450*200
φ400*300	φ490*110
	φ530*210
	φ690*150
	φ605*200
	φ750*130
	φ850*130

 

TIPS : We offer custom solutions to meet your exact needs. Contact us for any non-standard specifications.

PRODUCT FEATURES:
1.Low temperature and high temperature resistance (-190 ºC- +250 ºC)  
2.corrosion resistance , weather resistance  
3.high lubricity, no adhesion 
4.non-toxic, 
5.non-flammable  
6.acid and alkali resistance (except molten alkali metals) 
7.antioxidant.

 

PRODUCT PROPERTY:

Property	Unit	Result
Tensile strength	MPa	≥18
Compressive strength	MPa	≥25
Elongation at break	%	≥200
Apparent density	g/cm ^3	2.15-2.25
Coefficient of friction		0.12-0.18
Continuous operating temperature	°C	-200 to +260

 

Our Service
1)Your inquiry will be replied within 2 hours during working time,Within 24hours when rest time.
2)Our working time is 7.30 AM --17:30 PM,Monday to Saturday.
3)General samples time can be arranged within 2--5days.
4)Orders will be produced exactly as request and approved samples.
5)When mass production,we send photos to show the production line.And confirm the estimate time again.
6)At the end of mass production,photos and samples will send to you for approval.You can arrange the inspection.
7)Before shipment,our QC will have inspection to make sure the quality.
8)We always try best to ensure every order to delivery in time.
 
Payment Terms
1)T/T,Cash,L/C.
2)30% deposit,70% balance before shipment.
3)Lead time: 15 days after received deposited for 2tons.
4)Delivery way: By sea,By air, By EMS,DHL,UPS,TNT,FedEx.
 
Packing & Delivery
For sample: By EMS,DHL,UPS,TNT,FedEx
                 around 5--7 working days to arrive
 
For Bulk order:
1.Qty of 2tons,within 15 days.
2.Via Sea
3.Delivery time:we will finish production in 15days for 2tons.
4.For 20 GP,may nee around 30days.
 

Product Application

Company Profile

Chunhuan Group (Zhenjiang Chunhuan Sealing Group Co., Ltd.), established in 1985, is a leading manufacturer of fluoroplastic products, chemical semiconductor linings, and new energy sealing gaskets. The company primarily focuses on the research, development, and production of fluoroplastic series sealing products (for hydrogen energy and nuclear power applications) and chemical semiconductor linings. With subsidiaries in South Korea and Shanghai, the group has also established a joint venture with South Korea's Houcheng Group for semiconductor lining equipment. Main  production: PTFE  products, metal  seals  series, steel  lining  anti-corrosion series, engineering plastics series,rubber products series,it is the leading enterprise in the national fluoroplastics industry. The  company  supplies  more  than  300  varieties  of  PTFE  composite modified  materials,ranging  from standard  composite modified  materials (bronze,glass fiber,carbon,graphite,etc.) to  customized  solutions  to  meet different  production  needs  of customers.The  company  provides  flexible  quantity  and  fast  delivery service. The engineers have 35 years working experience in the field of PTFE,serving customers in more than 30 countries.

Our Advantages

Certifications

Packaging & Shipping

FAQ

Q1: What advantages does carbon fiber filled PTFE rod offer over pure PTFE or glass fiber filled in wear applications?
A1: Carbon fiber filling significantly improves wear resistance, compressive strength, and rigidity while lowering thermal expansion and compression set. Compared to glass fiber, carbon fiber delivers better wear and creep resistance, especially for high-load, high-frequency friction sliding parts.

Q2: What wear-resistant applications is this carbon fiber filled PTFE rod mainly used for?
A2: Typical applications include industrial sliding blocks, guide rings, bushings, bearings, seal rings, valve seats, pump wear parts, piston rings, and reciprocating or rotating components requiring low friction and corrosion resistance.

Q3: How does its chemical resistance perform? Does carbon fiber filling affect corrosion resistance?
A3: The PTFE matrix still resists most strong acids, bases, and organic solvents. Carbon fiber filling does not significantly compromise its chemical inertness, but strong oxidizing acids should be avoided. It is suitable for oils, water, hydrocarbons, mild acids/bases, and most industrial chemicals.

Q4: Can diameter and length be customized? Can you machine finished parts directly from drawings?
A4: Yes. Diameters typically range from 5 to 350 mm, with lengths cut to order. We accept PDF/CAD 2D drawings and IGES/STEP 3D models for turning, milling, drilling, tapping, and slotting, delivering finished parts directly.

Q5: Is the carbon fiber filled version FDA-compliant or food-grade?
A5: No. Carbon fiber filled PTFE does not meet FDA food-contact requirements and is not recommended for food, pharmaceutical, or potable water systems. It is designed for industrial wear applications. For food-grade needs, please select pure PTFE or FDA-compliant unfilled grades.

Q6: Under long-term compression, how does carbon fiber filling improve creep resistance?
A6: Carbon fiber filling greatly reduces compression set and improves creep resistance. Under sustained preload or high load, dimensional changes are far smaller than pure PTFE, preventing relaxation and maintaining fit accuracy and sealing force.

Q7: What is the difference between extruded and molded rod, and how do I choose for wear parts?
A7: Extruded rod suits standard diameters and longer continuous lengths with better cost. Molded rod handles large diameters and thick walls, offering higher density, lower internal stress, and better creep resistance. For high-load or large wear parts, choose molded; for standard sizes, extruded is suitable.

Q8: Can other fillers be added on top of carbon fiber, such as graphite or molybdenum disulfide?
A8: Yes. Graphite or molybdenum disulfide can further reduce friction and enhance self-lubrication; bronze can improve thermal conductivity. Different combinations can be customized for speed, pressure, and temperature conditions. Describe your application and we will recommend the right formulation.

Q9: For bulk orders, how do you ensure quality and dimensional consistency? What documents are provided?
A9: We use controlled compounding and extrusion or molding processes. Each batch is inspected for carbon fiber content, density, hardness, compressive strength, and critical dimensions. Retained samples and lot traceability records ensure stable supply. MSDS, ROHS, and REACH documents are available, with test reports upon request.