Product Overview
VICTREX® 450G PEEK is produced by Victrex (UK) and belongs to the standard flow polyetheretherketone (PEEK) base resin series. This material is an unfilled, semicrystalline, high-performance thermoplastic engineering plastic that offers a balance of mechanical strength, high-temperature resistance, chemical resistance, and stable electrical insulation properties. As a core general-purpose grade, its balanced properties meet the long-term stable usage requirements for precision structural components across various scenarios and are suitable for continuous service in demanding operating conditions. The product is compatible with mainstream thermoplastic processing technologies and can be used for standardized mass production and precision part machining via injection molding and extrusion.
Technical Specifications
Physical Properties
| Physical Properties | Typical Value | Unit | Test Standard |
| Density, Crystalline | 1.3 | g/cm³ | ISO 1183 |
| Spiral Flow Distance (1 mm, 180 ℃, 375 ℃) | 11 | cm | Internal Method |
| Melt Viscosity (400 ℃) | 350 | Pa·s | ISO 11443 |
| Mold Shrinkage, Transverse (375 ℃ nozzle, 180 ℃ tool) | 1.3 | % | ISO 294-4 |
| Mold Shrinkage, Parallel (375 ℃ nozzle, 180 ℃ tool) | 0.9 | % | ISO 294-4 |
| Water Absorption, Saturation (23 ℃) | 0.45 | % | ISO 62 |
| Water Absorption, Saturation (100 ℃) | 0.55 | % | ISO 62 |
| Shore Hardness D (23 ℃) | 84.5 | — | ISO 868 |
Mechanical Properties
| Mechanical Properties | Typical Value | Unit | Test Standard |
| Tensile Modulus (23 ℃) | 4000 | MPa | ISO 527-2 |
| Tensile Strength, Yield (23 ℃) | 98 | MPa | ISO 527-2 |
| Tensile Strain at Break (23 ℃) | 45 | % | ISO 527-2 |
| Flexural Modulus (23 ℃) | 3800 | MPa | ISO 178 |
| Flexural Strength, Yield (23 ℃) | 165 | MPa | ISO 178 |
| Flexural Strength (3.5% Strain, 23 ℃) | 125 | MPa | ISO 178 |
| Flexural Strength (125 ℃) | 85 | MPa | ISO 178 |
| Flexural Strength (175 ℃) | 19 | MPa | ISO 178 |
| Flexural Strength (275 ℃) | 12.5 | MPa | ISO 178 |
| Compressive Strength, Yield (23 ℃) | 125 | MPa | ISO 604 |
| Compressive Strength (120 ℃) | 70 | MPa | ISO 604 |
| Charpy Impact Strength, Notched (23 ℃) | 7 | kJ/m² | ISO 179 1eA |
| Charpy Impact Strength, Unnotched (23 ℃) | No Break | — | ISO 179 |
| Izod Impact Strength, Notched (23 ℃) | 8 | kJ/m² | ISO 180/1A |
| Izod Impact Strength, Unnotched (23 ℃) | No Break | — | ISO 180 |
Thermal Properties
| Thermal Properties | Typical Value | Unit | Test Standard |
| Glass Transition Temperature (Tg), Onset | 143 | ℃ | ISO 11357-2 |
| Melting Point | 343 | ℃ | ISO 11357-3 |
| CTE, Parallel (< 143 ℃) | 4.50E-05 | cm/cm/℃ | ISO 11359-2 |
| CTE, Parallel (> 143 ℃) | 1.20E-04 | cm/cm/℃ | ISO 11359-2 |
| CTE, Transverse (< 143 ℃) | 5.50E-05 | cm/cm/℃ | ISO 11359-2 |
| CTE, Transverse (> 143 ℃) | 1.40E-04 | cm/cm/℃ | ISO 11359-2 |
| Relative Thermal Index (RTI), Electrical | 260 | ℃ | UL 746 |
| Relative Thermal Index (RTI), Impact | 180 | ℃ | UL 746 |
| Relative Thermal Index (RTI), Tensile | 240 | ℃ | UL 746 |
| Glow Wire Ignition Temperature (GWIT) (2 mm) | 960 | ℃ | IEC 60695-2-12 |
Electrical Properties
| Electrical Properties | Typical Value | Unit | Test Standard |
| Volume Resistivity (23 ℃) | 1.00E+16 | ohms·cm | IEC 60093 |
| Volume Resistivity (125 ℃) | 1.00E+15 | ohms·cm | IEC 60093 |
| Volume Resistivity (275 ℃) | 1.00E+09 | ohms·cm | IEC 60093 |
| Dielectric Strength (0.05 mm) | 200 | kV/mm | IEC 60243-1 |
| Dielectric Strength (2 mm) | 23 | kV/mm | IEC 60243-1 |
| Dielectric Constant (50 Hz, 23 ℃) | 3 | — | IEC 60250 |
| Dielectric Constant (23 ℃, 1.0e+3 Hz) | 3.1 | — | IEC 60250 |
| Dielectric Constant (50 Hz, 200 ℃) | 4.5 | — | IEC 60250 |
| Dissipation Factor (23 ℃, 1.0e+6 Hz) | 4.00E-03 | — | IEC 60250 |
| Comparative Tracking Index (CTI) | 150 | V | IEC 60112 |
Logistics & Supply Standards
VICTREX® 450G PEEK is packed in industry-standard 25kg moisture-proof, dust-proof, and oxidation-resistant sealed bags to effectively ensure resin storage stability and processing suitability. We maintain regular stock, with stable inventory levels, capable of consistently meeting both bulk and small-batch order delivery requirements. The product’s regular delivery cycle follows standard international trade terms. Standard order delivery times are controlled and traceable, with specific lead times determined precisely based on order volume, destination, and trade terms. As a standard solid engineering plastic pellet, this product is not classified as a dangerous or controlled chemical; it meets mixed shipment transportation specifications, allowing for consolidation with other compliant chemical materials to maximize logistics cost efficiency and delivery speed.
Compliance & Quality Commitment
We provide customers with complete and valid original manufacturer technical documents and quality certifications, including Technical Data Sheets (TDS), Material Safety Data Sheets (MSDS), and original Certificates of Analysis (COA). All documents can be delivered with the shipment or filed separately, supporting full-process documentation verification. VICTREX® 450G PEEK complies with multiple international general standards, covering EU REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals), RoHS (Restriction of Hazardous Substances), UL 94 flame retardancy standards, and FDA food contact compliance, meeting basic requirements for high-end industrial and non-implantable medical scenarios. The entire process—from original production and batch sampling to warehouse storage and logistics delivery—is traceable, with each batch assigned a unique lot number and quality inspection data, following a standardized quality control system to ensure batch-to-batch consistency and regulatory compliance.
Sustainability & ESG Statement
VICTREX® 450G PEEK is a high-performance thermoplastic recyclable resin. Scrap and non-conforming parts can be reprocessed and reused through compliant processes, effectively reducing material waste and industrial solid waste emissions. The production and processing stages feature low VOC emissions, with no release of hazardous volatile substances, making the material suitable for clean manufacturing environments and green production systems. The material contains no heavy metals (such as lead, mercury, or cadmium) or persistent pollutants restricted by the RoHS directive, fully meeting global green supply chain access standards and industrial environmental regulations. Benefiting from stable material service life and aging resistance, it can significantly reduce terminal product replacement frequency and full-lifecycle resource consumption.
Frequently Asked Questions (FAQs)
Q1: What is the recommended drying standard for VICTREX® 450G PEEK prior to processing?
A1: While this resin has low hygroscopicity, it requires constant-temperature drying prior to injection molding or extrusion to avoid defects such as bubbles or silver streaks. The standard drying condition is 120℃~150℃ for 3~4 hours to ensure the moisture content is within the processing range, guaranteeing the structural integrity and mechanical property stability of the molded parts.
Q2: What are the minimum order quantities (MOQ), sample application, and batch allocation rules?
A2: The standard MOQ for regular trade is one unit of standard packaging (25kg), with flexibility for split-shipments on bulk orders. For R&D testing and sample verification, small-quantity samples are available; these are original materials from the same batch as commercial stock and are accompanied by the corresponding batch COA report. When inventory is sufficient, multi-batch allocation is supported to meet customers’ continuous mass production needs.
Q3: How should I match 450G grade against Victrex high-flow 150G or high-rigidity filled grades for different applications?
A3: VICTREX® 450G is a standard-flow, general-purpose pure PEEK resin with balanced properties and wide versatility. It is suitable for most general industrial precision structural parts, wear-resistant parts, electrical insulation components, and standard food-contact or high-temperature applications. The 150G high-flow grade is better suited for high-speed injection molding of thin-walled and complex structures, while filled grades focus on high-rigidity, high-wear, or specialized operating conditions. For applications without extreme forming or rigidity requirements, 450G is the optimal choice for general use, balancing processing stability with performance.