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High strength and toughness, fatigue resistant. Alloy steels incorporate additional alloying elements beyond carbon, leading to heightened hardness, toughness, fatigue resistance, and wear resistance
Grade & Composition | Key Characteristics | Primary Applications |
---|---|---|
Unfilled PEEK (e.g., PEEK-1000) | • Density: 1.30-1.32 g/cm³ • Tensile strength: 90-110 MPa • HDT @1.82 MPa: 152°C • Low friction (μ=0.34) | • Chemical seals • Electrical insulators • Sterilizable surgical tools |
30% Glass Fiber Reinforced (e.g., PEEK-GF30) | • Density: 1.45-1.51 g/cm³ • Tensile strength: 160-170 MPa • HDT @1.82 MPa: 315°C • 20× improved creep resistance | • Aerospace brackets • Engine components • High-temperature bearings |
30% Carbon Fiber Reinforced (e.g., PEEK-CA30) | • Density: 1.40-1.45 g/cm³ • Tensile strength: 200-220 MPa • CTE: 8×10⁻⁶/°C • Enhanced conductivity | • Medical implants • Robotic arms • Semiconductor wafer carriers |
Modified Sliding Grade (10% CF + 10% PTFE + 10% Graphite) | • Ultra-low friction (μ=0.15) • Superior abrasion resistance • Service temp: -30°C to 250°C | • Self-lubricating bearings • Pump seals • Hydrogen system valves |
Property | Test Standard | Unfilled PEEK | 30% GF PEEK | 30% CF PEEK |
---|---|---|---|---|
Tensile Strength | ISO 527 | 90-100 MPa | 160-170 MPa | 200-220 MPa |
Flexural Modulus | ISO 178 | 3.6 GPa | 9.0 GPa | 12.5 GPa |
HDT @1.82 MPa | ISO 75 | 152°C | 315°C | 315°C |
CTE | DIN 53752 | 47×10⁻⁶/K | 21×10⁻⁶/K | 8×10⁻⁶/K |
Volume Resistivity | IEC 60093 | 10¹⁶ Ω·cm | 10¹⁵ Ω·cm | 10⁴–10⁶ Ω·cm |
LOI | ISO 4589 | 35% (all grades) |
•Drying: Mandatory at 150°C for 3-5 hours (moisture ≤0.02%) to prevent bubbling and strength loss[7](@ref)
•Melt Temperature: 380-400°C (±5°C tolerance) – degradation occurs above 420°C[5](@ref)
•Stress Relief: Post-molding annealing at 200°C (2-4 hours) optimizes crystallinity (30-40%)[3](@ref)
•Implants: Elastic modulus 3.6 GPa matches human bone, prevents stress shielding in joint replacements (20+ year lifespan)[9](@ref)
•Sterilization: Withstands 3,000+ steam sterilization cycles at 134°C without degradation[1](@ref)
•Weight Reduction: 20% lighter than metal alloys while maintaining strength at 260°C continuous service[6](@ref)
•Radiation Resistance: Tolerates γ-radiation doses up to 1100 Mrad (nuclear reactor levels)[7](@ref)
On December 12 , 2019,LML welcomed three customers again.
Read more about quality assuranceOn December 12 , 2019,LML welcomed three customers again.
Read more about quality assuranceOn December 12 , 2019,LML welcomed three customers again.
Read more about quality assuranceTake advantage of our network and see what LML can do for you