770FE20 Wear-resistant PEEK

Features of 770FE20 Wear-resistant PEEK

• Wear Resistance: As a core feature of the FC Series, 770FE20 exhibits superior resistance to abrasive wear, making it suitable for parts that experience repeated friction (e.g., valve seats, seals, piston rings). Its wear performance is enhanced by specialized fillers or treatments, though exact additive compositions (e.g., PTFE, carbon fiber) are typically proprietary.

• High-Temperature Stability: Like all PEEK variants, 770FE20 retains its mechanical properties at elevated temperatures, with a heat deflection temperature (HDT) exceeding 300°C (specific values vary by manufacturer). This makes it ideal for use in automotive, aerospace, and industrial machinery where operating temperatures are high.

• Mechanical Strength: The grade maintains a balance of tensile and flexural strength, enabling it to withstand heavy loads without deformation. While not as rigid as glass-fiber-reinforced PEEK (e.g., 770GL30), it offers a compromise between strength and impact resistance.

• Chemical Resistance: 770FE20 resists corrosion from oils, fuels, acids, and bases, making it compatible with harsh chemical environments. This property is critical for applications in the chemical processing and automotive industries.

• Processability: As an injection-grade PEEK, 770FE20 is designed for ease of molding. It flows well in injection molding machines, allowing for the production of complex, high-precision parts with minimal defects.

Specifications of 770FE20 Wear-resistant PEEK

PEEK®—770FE20
Test Item	Test Standard	Test Conditions	Unit	Test Data
Mechanical Properties
Tensile Strength	ISO 527	Fracture, 23°C	MPa	78
Elongation at Break	ISO 527	Fracture, 23°C	%	25
Flexural Strength	ISO 178	Fracture, 23°C	MPa	125
Flexural Modulus	ISO 178	23°C	GPa	3.2
Compressive Strength	ISO 604	23°C	MPa	105
Impact Strength of Simply Supported Beam	ISO 179/1eA	Notched	kJ m-2	-
	ISO 179/1U	Unnotched	kJ m-2	-
Impact Strength of Cantilever Beam	ISO 180/A	Notched	kJ m-2	7.5
	ISO 180/U	Unnotched	kJ m-2	No breakage
Forming Shrinkage Rate	ISO 294-4	Parallel to flow direction	%	1.2
		Perpendicular to flow direction	%	1.7
Thermal Performance
Melting point	ISO 11357	-	℃	343
Glass transition temperature	ISO 11357	Initial	℃	143
Specific heat capacity	DSC	23°C	kJ kg-1  ℃-1	-
Thermal expansion coefficient	ISO 11359	Below Tg along flow direction	ppm K-1	40
		Above Tg along flow direction	ppm K-1	120
Heat deflection temperature	ISO 75-f	1.8 Mpa	℃	-
Thermal conductivity	ISO 22007-4	23℃	W m-1 K-1	-
Liquidity
Melt Index	ISO 1133	380℃, 5kg	g 10min-1	8
Others
Density	ISO 1183	Crystalline	g cm-3	1.40
		Non-crystalline	g cm-3	-
Shore D Hardness	ISO 868	23°C		81
Water Absorption Rate (3.2mm Thick Tensile Rod) (Immersion Test)	ISO 62-1	24 hours, 23°C	%	0.04
		Equilibrium, 23°C	%	0.3
Electrical Properties
Dielectric Strength	IEC 60243-1	2mm	kV mm-1	21
Compared to Tracking Index	IEC 60112	-	V	-
Dielectric Constant	IEC 60250	23℃, 1kHz	-	2.8
		23℃, 50Hz	-	-
Tangent of Loss	IEC 60250	23℃, 1MHz	-	-
Volume Resistivity	IEC 60093	23℃, 1V	Ω cm	1015
		275℃	Ω cm	-

Applications of 770FE20 Wear-resistant PEEK

770FE20 is primarily used in components where wear resistance and thermal stability are paramount. Common applications include:

• Valve Components: Valve seats, stems, and discs in reciprocating compressors, hydraulic systems, and pneumatic devices (noted for its ability to outperform metal valves in lifespan).

• Sealing Elements: Seals and gaskets for engines, pumps, and gearboxes, where resistance to abrasion and chemical attack is critical.

• Wear Rings & Bearings: Thrust washers, bearing bushes, and guide rails in industrial machinery, reducing friction and extending equipment life.

• Automotive Parts: Bushings, clips, and other high-wear components in engine compartments and transmission systems.

Supplier Information of 770FE20 Wear-resistant PEEK

770FE20 is manufactured by leading PEEK producers, including:

• PEEK (xingzhongrun Plastic Co., Ltd.): A Chinese manufacturer offering 770FE20 in standard pellet form (25kg/bag) with grades tailored to injection molding. The company provides technical support and customization options for large orders.

• Victrex (UK): While Victrex’s 450GL series is more commonly known, similar wear-resistant grades (e.g., 450FE20) are available for high-performance applications, though 770FE20 is primarily associated with Chinese suppliers.

Note on Specifications of 770FE20 Wear-resistant PEEK

Exact mechanical properties (e.g., tensile strength, elongation at break) and thermal characteristics (e.g., melting point, Vicat softening temperature) are typically provided in technical datasheets from the supplier. These parameters can vary slightly based on the manufacturing process and additives used.