ARKPEEK-1000 vs Victrex 450G: A Detailed Comparison

Jun. 01, 2025

✅ Intro

When selecting a high-performance unfilled PEEK material, engineers often compare ARKPEEK-1000 and Victrex 450G. Both materials offer exceptional thermal, mechanical, and electrical properties. In this blog, we present a detailed comparison, including tensile strength, flexural modulus, impact resistance, continuous use temperature, and volume resistivity. You’ll find that ARKPEEK-1000 matches Victrex 450G in nearly every category—making it a reliable and cost-effective alternative for critical applications.

Conclusion: ARKPEEK-1000 is equal to Victrex 450G in performance.

Property	ARKPEEK-1000	Victrex 450G	Test Standard
General Properties
Material Composition	Unfilled 100% Virgin PEEK Resin	Unfilled PEEK	-
Density	1.30 g/cm³ (Typical)	1.26–1.32 g/cm³	ISO 1183
Color	Natural/Beige	Natural/Beige	Visual
Mechanical Properties
Tensile Strength (23°C)	90–100 MPa	92–100 MPa	ISO 527
Flexural Modulus	3.5–4.0 GPa	3.6–4.0 GPa	ISO 178
Notched Izod Impact (23°C)	8–10 kJ/m²	7–8 kJ/m²	ISO 180
Thermal Properties
Continuous Use Temperature	-75°C to +260°C	-50°C to +260°C	-
Peak Service Temperature	310°C	315°C	-
HDT @ 1.8 MPa	152–160°C	143–160°C	ISO 75-2
CLTE (Flow Direction)	4.7 × 10⁻⁵ K⁻¹	4.7 × 10⁻⁵ K⁻¹	ISO 11359-2
Chemical/Special Props
Chemical Resistance	Oil, Acids, Alkalis, Organic Solvents	Oil, Acids, Alkalis, Organic Solvents	ASTM D543
Hydrolysis Resistance	Excellent	Excellent	ISO 62
Flammability Rating	UL94 V-0	UL94 V-0	UL 94
Coefficient of Friction	Low (Self-Lubricating)	Low (Self-Lubricating)	ASTM D1894
Electrical Properties
Volume Resistivity (23°C)	>10¹⁶ Ω·cm	>10¹⁶ Ω·cm	IEC 60093
Dielectric Strength (2mm)	20–25 kV/mm	20–23 kV/mm	IEC 60243-1