550GL30 Glass Fiber Reinforced(GF) PEEK

Features of 550GL30 Glass Fiber Reinforced(GF) PEEK

• Mechanical Strength: The addition of 30% glass fibers significantly enhances rigidity and creep resistance compared to unfilled PEEK, while maintaining a balance of toughness. It exhibits high tensile and flexural strength, making it suitable for load-bearing components.

• Thermal Performance: With a melting point of 334°C and a continuous use temperature of 260°C, 550GL30 retains structural integrity in high-temperature environments. Its load deflection temperature (under load) reaches 316°C, ensuring performance in extreme heat.

• Chemical Resistance: PEEK is inherently resistant to most chemicals, including acids, bases, and organic solvents. Only concentrated sulfuric acid can degrade it, granting it corrosion resistance comparable to nickel steel—an ideal choice for harsh chemical environments.

• Dimensional Stability: The low thermal expansion coefficient of 550GL30 minimizes warping during temperature fluctuations, critical for precision parts in automotive, medical, and aerospace industries.

• Food Contact Compliance: The material meets FDA standards for food contact, enabling its use in food processing equipment and medical devices requiring sterilization.

Specifications of 550GL30 Glass Fiber Reinforced(GF) PEEK

PEEK®—550GL30
Test Item	Test Standard	Test Conditions	Unit	Test Data
Mechanical Properties
Tensile Strength	ISO 527	Fracture, 23°C	MPa	175
Elongation at Break	ISO 527	Fracture, 23°C	%	2.7
Flexural Strength	ISO 178	Fracture, 23°C	MPa	265
Flexural Modulus	ISO 178	23°C	GPa	11.3
Compressive Strength	ISO 604	23°C	MPa	250
Simple Beam Impact Strength	ISO 179/1eA	Notched	kJ m-2	8
	ISO 179/1U	Unnotched	kJ m-2	55
Cantilever Beam Impact Strength	ISO 180/A	Notched	kJ m-2	10
	ISO 180/U	Unnotched	kJ m-2	60
Forming Shrinkage Rate	ISO 294-4	Parallel to flow direction	%	0.3
		Perpendicular to flow direction	%	0.8
Thermal Performance
Melting point	ISO 11357	-	℃	343
Glass transition temperature	ISO 11357	Initial	℃	143
Specific heat capacity	DSC	23°C	kJ kg-1  ℃-1	1.7
Thermal expansion coefficient	ISO 11359	Below Tg along flow direction	ppm K-1	18
		Above Tg along flow direction	ppm K-1	18
Heat deflection temperature	ISO 75-f	1.8 Mpa	℃	328
Thermal conductivity	ISO 22007-4	23℃	W m-1 K-1	0.3
Liquidity
Melt Index	ISO 1133	380℃, 5kg	g 10min-1	6
Others
Density	ISO 1183	Crystalline	g cm-3	1.51
		Non-crystalline	g cm-3	-
Shore D Hardness	ISO 868	23°C		88
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	25
Compared to Tracking Index	IEC 60112	-	V	150
Dielectric Constant	IEC 60250	23℃, 1kHz	-	3.2
		23℃, 50Hz	-	-
Tangent of Loss	IEC 60250	23℃, 1MHz	-	0.005
Volume Resistivity	IEC 60093	23℃, 1V	Ω cm	1016
		275℃	Ω cm	-

Applications of 550GL30 Glass Fiber Reinforced(GF) PEEK

550GL30 is widely adopted across industries for its robust properties:

• Medical: Surgical instruments, implants, and diagnostic equipment (benefiting from sterilizability and biocompatibility).

• Automotive: Engine components, transmission parts, and under-the-hood assemblies (leveraging high temperature resistance and mechanical strength).

• Electrical: Insulation for connectors, switches, and circuit boards (thanks to excellent electrical insulation and thermal stability).

• Industrial: Bearings, gears, and valves (utilizing self-lubrication and wear resistance).  Comparison with Similar Grades

• When compared to high-end brands like Victrex 450GL30 (a market leader), 550GL30 demonstrates comparable performance in density, hardness, impact strength, and electrical properties. This makes it a cost-effective alternative for applications where premium-priced imported materials are not mandatory.

Processing & Handling of 550GL30 Glass Fiber Reinforced(GF) PEEK

550GL30 is designed for ease of processing:

• Injection Molding: Suitable for high-volume production of intricate parts, with a medium flow rate ensuring consistent filling of molds.

• Extrusion: Ideal for producing continuous profiles (e.g., tubes, rods) used in automotive and industrial applications.

The standard pellet form facilitates efficient feeding into molding machines, and the material’s thermal stability reduces the risk of defects during processing.