PEEK-Victrex PEEK 450GL30
For high-load static systems and deep-draw aerospace components requiring extreme dimensional stability and low thermal expansion, Victrex’s PEEK 450GL30 delivers through its 30% glass fiber reinforced, semi-crystalline polyetheretherketone matrix. Boasting an outstanding heat deflection temperature (HDT) of 328°C under 1.8 MPa and a density of 1.51 g/cm³, this structural grade offers an elastic modulus of 11,500 MPa and excellent chemical resistance. Jucheng Precision, under ISO 9001, ISO 13485, and IATF 16949 certified frameworks, specializes in molding PEEK 450GL30. Backed by 35+ advanced injection presses and five-axis CNC-machined H13 tooling, we control its anisotropic shrink variables to prevent warpage, verified by Zeiss CMM.
Victrex PEEK 450GL30 Structural Mechanics & Thermal Deflection
Victrex™ PEEK POLYMER 450GL30 is a 30% glass fiber reinforced semi-crystalline Polyetheretherketone, engineered to provide outstanding mechanical rigidity, dimensional repeatability, and exceptional heat deflection under ASTM/ISO standards:
| Mechanical / Thermal Parameter | Typical Value (DAM / ISO) | Aero & Medtech Engineering Edge |
|---|---|---|
| Structural Rigidity | Tensile Modulus 11,500 MPa / Flexural Strength 275 MPa | Delivers metal-like structural modulus, ensuring zero component deflection or deformation under continuous dynamic torque loading. |
| Heat Deflection (HDT) | 328 °C (DAM @ 1.80 MPa) | Elevates thermal deflection limit from unreinforced PEEK’s 152°C, perfectly resisting structural collapse under downhole steam and engine heat. |
| Linear Thermal Expansion | CLTE Along Flow 18 ppm/K (Below Tg) | Provides extremely low expansion rates matching metallic alloys, maintaining structural sealing clearance inside subsea couplings. |
Heavy-Duty Static Process Configurations for Reinforced PEEK 450GL30
With intermediate melt viscosity and high mineral-glass reinforcement, PEEK 450GL30 supports structural configurations:
| Dynamic Molding Process | Process Adaptability & Operational Details |
|---|---|
| Aerospace Structural Components | Excellent. The primary process for PEEK 450GL30. Engineered for high-stiffness aircraft brackets, structural engine mounts, and cable harness clamps. |
| Downhole Oil & Gas Packings | Excellent. Perfect for high-pressure subsea seal backup rings, downhole packer elements, and dynamic valve seats. |
| Semiconductor Handling Trays | Good. High modulus, extremely low outgassing, and excellent SMT lead-free solder heat resistance allow clean chip carrier runs. |
PEEK-Victrex PEEK 450GL30 Tooling & Thermal Shrinkage Blueprint
Molding a highly structural 30% glass-fiber reinforced PEEK demands extreme thermal boundaries and wear-resistant tool designs to control warpage:
Controlling Abrasive Tool Wear
30% short glass fibers act as an aggressive grinding agent under high injection pressures and high melt viscosity (550 Pa·s). Jucheng’s tooling division prevents cavity erosion by constructing molds with premium hardened tool steel (H13 or S136) heat-treated to 52 HRC, combined with nitriding or PVD wear-resistant ceramic coatings to ensure mold longevity.
Managing Anisotropic Shrinkage & Warpage
Glass-filled PEEK shrinks exceptionally low along the flow (typically 0.20% to 0.40%). We utilize 5-axis CNC machines to cut precise mold cavities and implement balanced cooling paths managed by pressurized water controllers, preventing uneven thermal contraction and structural warping.
Pressurized Oil Mold Heating (Crystallization Control)
To secure the proper semi-crystalline phase, mold temperatures must be maintained continuously at 160°C–200°C (320°F to 392°F) using pressurized oil-heating controllers. Cold molds prevent crystallization, resulting in amorphous, translucent brown parts with compromised mechanical strength and low chemical resistance.
Extended Desiccant Pre-Drying Protocol
While PEEK absorbs minimal water, moisture causes hydrolytic splay and weld line degradation. We desiccant-dry PEEK 450GL30 resin at 150°C (302°F) for 3–4 hours, keeping internal moisture below 0.02% to secure optimal molecular bonds.
Key Application Fields for PEEK-Victrex PEEK 450GL30
- Aerospace Structural Fittings: High-stiffness aircraft brackets, wing structural mounts, cable harness clamps, environmental control duct fittings, and protective sensor housings.
- Oil & Gas Exploration & Production: Downhole packer elements, subsea electrical connector covers, chemical valve seats, compressor seals, and dynamic pump vanes.
- Automotive Powertrains (IATF 16949 Certified): High-wear dynamic thrust washers, automatic transmission seal rings, steering column gears, and specialized fluid fittings.
Properties
| Density | 1.51 - 1.52 g/cm³ |
| Melt Viscosity (400°C) | 550 Pa·s |
| Tensile Modulus (23°C) | 11.5 GPa |
| Tensile Strength at Break (23°C) | 185 MPa |
| Tensile Elongation at Break (23°C) | 2.8 % |
| Flexural Strength (23°C) | 275 MPa |
| Flexural Modulus (23°C) | 11 GPa |
| Compressive Strength (23°C) | 250 MPa |
| Charpy Notched Impact Strength (23°C) | 8 kJ/m² |
| Izod Notched Impact Strength (23°C) | 12 kJ/m² |
| Melting Temperature | 343 °C |
| Glass Transition Temperature (Onset) | 143 °C |
| Heat Deflection Temperature (HDT @ 1.80 MPa) | 328 °C |
| Linear Mold Shrinkage (Flow Direction) | 0.2 % |
| Linear Mold Shrinkage (Cross Direction) | 0.4 % |
| Flammability Rating (1.5mm) | UL 94 V-0 Class |
| Maximum Part Size | 800 x 600 mm |
| Minimum Part Size | 1 x 1 mm |