PEEK GF30 vs PP (Polypropylene): 0% composition overlap. Significantly different materials serving different application areas.
PEEK GF30 vs PP (Polypropylene)
Side-by-side chemical composition and mechanical property comparison.
Overview
PEEK GF30
PEEK with 30% short glass fiber reinforcement. Dramatically increased stiffness (E-Mod 11 GPa vs 4.1 unfilled) and strength (UTS 160 vs 100 MPa) with reduced elongation and creep. Maintains PEEK's chemical resistance and high-temp capability (continuous 250°C). Trade names: Victrex 450GL30, TECAPEEK GF30 (Ensinger), KetaSpire GF30 (Solvay). Used for structural brackets, pump housings, valve seats, bearing cages, and semiconductor wafer handling where higher stiffness than unfilled PEEK is needed.
PP (Polypropylene)
Polypropylene is the most produced plastic globally by volume. Semi-crystalline thermoplastic with excellent chemical resistance, low density (0.90–0.91 g/cm³ — lightest engineering plastic, floats in water), good fatigue resistance (living hinges) and low cost. Available as homopolymer (higher stiffness) and copolymer (better impact). Trade names: Moplen (LyondellBasell), Sabic PP (SABIC), Borealis PP. Used for packaging, automotive bumpers/interiors, medical devices, piping, hinges, containers, textiles (nonwoven) and household goods.
| PEEK GF30 | PP (Polypropylene) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 527-1 | ISO 1873 |
Chemical composition (wt%) — Pro
| Element | PEEK GF30 | PP (Polypropylene) | Overlap |
|---|---|---|---|
| PEEK (Base Polymer) | 68–72% | — | — |
| Glass Fiber Reinforcement | 28–32% | — | — |
| Base Polymer (Polypropylene) | — | 99–99.9% | — |
Mechanical properties — Pro
| Property | PEEK GF30 | PP (Polypropylene) | Unit |
|---|---|---|---|
| Tensile Strength | 155–165 | — | MPa |
| Elongation | 2–3 | — | % |
| Elastic Modulus | 10500–11500 | — | MPa |
| Density | |||
| hdt_1.8mpa | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Charpy Impact (notched, 23°C) | |||
| Charpy Impact (notched, -20°C) | |||
| Density | |||
| Melting Point | |||
| HDT/A (1.8 MPa) | |||
| Water Absorption (24h) |
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PEEK GF30 and PP (Polypropylene) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is PEEK GF30 the same as PP (Polypropylene)?
PEEK GF30 and PP (Polypropylene) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PEEK GF30 with PP (Polypropylene)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between PEEK GF30 and PP (Polypropylene)?
The main differences are in the following elements: overall alloying content. PEEK GF30 is a Polymers grade, while PP (Polypropylene) is a Polymers grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.