PEEK-ESD
PEEK-ESD is a polyaryletherketone loaded with carbon black, carbon nanotubes or carbon fiber to hold a controlled static-dissipative or conductive surface resistivity.
Reference datasheet — PEEK-ESD is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the ESD-CB condition
PEEK-ESD grades and fills
PEEK-ESD is supplied in 6 conditions, soft to hard. ESD-CB is the default FabDigit quotes; the values on this page are for it.
Compare all 6 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
high-loading carbon black, conductive (10²–10⁴ Ω/sq) | Use where true grounding/charge bleed-off in the conductive range is required rather than dissipative decay. | 72 | 3 | ||
dissipative bearing grade (carbon + PTFE/graphite) | For ESD-safe sliding surfaces, guide rails and bushings where low friction and low wear debris matter more than strength. | 80 | 3 | ||
ESD-CBDefault Carbon-black filled, static dissipative | General-purpose static-dissipative PEEK stock shape or molding compound for ESD-safe fixtures, guides and handling parts. | 88 | 90 | 6 | 86 Shore D |
semiconductor-clean stock shape (low ionic/metal extractables) | Specify when the part contacts wafers or wet-process chemistry and extractable-ion/metal certificates plus tight resistivity control are required. | 92 | 95 | 8 | 85 Shore D |
Carbon-nanotube modified, low-contamination dissipative | Pick when a tight, stable 10⁶–10⁹ Ω/sq window plus high ductility and minimal particle shedding is needed for wafer/panel contact parts. | 98 | 15 | ||
30 % carbon fibre reinforced, conductive and stiff | Choose for stiff, dimensionally stable ESD structural parts — end effectors, arms, test fixtures — where 10³–10⁵ Ω/sq is acceptable. | 180 | 185 | 2 | 105 HRM |
What is PEEK-ESD?
PEEK-ESD is a polyaryletherketone loaded with carbon black, carbon nanotubes or carbon fiber to hold a controlled static-dissipative or conductive surface resistivity. Semiconductor and electronics equipment builders use it where PEEK chemical resistance, 250 °C service and cleanroom cleanliness must be combined with charge control; it is available as machining stock and injection-moulded parts. Tensile strength is 90 MPa with 6% elongation, the carbon filler is abrasive, and resistivity depends on gate, screw and shear conditions, so it is verified lot by lot. Unfilled 450G is cheaper where ESD control is not required. PEEK-ESD has a density of 1.42 g/cm³ (0.0513 lb/in³), heavier than 83% of polymer grades. Its glass-transition temperature is 143°C (289 °F). PEEK-ESD has a yield strength of 88 MPa (12.8 ksi) and a tensile strength of 90 MPa (13.1 ksi) — stronger than 90% of polymer grades. Elongation at break is 6% and the elastic modulus is 4.2 GPa (0.609 Msi).
What is PEEK-ESD used for?
- wafer handling components
- electronics fixtures
- ESD-safe tooling
- cleanroom parts
Advantages
- Conducts heat well — 0.42 W/m·K (0.243 BTU/hr·ft·°F), better than 95% of polymer grades
- High service temperature — 250°C (482 °F), better than 94% of polymer grades
- Tough — resists crack growth — 4 MPa·√m (3.64 ksi·√in), better than 92% of polymer grades
- Good corrosion resistance — 92/100, better than 91% of polymer grades
- High strength — 88 MPa (12.8 ksi), better than 90% of polymer grades
Limitations
- High embodied carbon — 13 kg CO₂/kg, worse than 93% of polymer grades
- Heavy — 1.42 g/cm³ (0.0513 lb/in³), worse than 83% of polymer grades
PEEK-ESD properties
Typical room-temperature values for PEEK-ESD-ESD-CB; bars are the position among polymer grades.
Physical5
PEEK-ESD has a density of 1.42 g/cm³ (0.0513 lb/in³), heavier than 83% of polymer grades. Its glass-transition temperature is 143°C (289 °F).
Mechanical16
PEEK-ESD has a yield strength of 88 MPa (12.8 ksi) and a tensile strength of 90 MPa (13.1 ksi) — stronger than 90% of polymer grades. Elongation at break is 6% and the elastic modulus is 4.2 GPa (0.609 Msi).
Thermal11
PEEK-ESD is rated for continuous service to 250°C (482 °F). It conducts heat at 0.42 W/m·K (0.243 BTU/hr·ft·°F), better than 95% of polymer grades. Thermal expansion is 45 µm/m·K (25 µin/in·°F).
Electrical3
PEEK-ESD has an electrical resistivity of 10,000 Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of polymer grades. UV resistance is very good.
Sustainability4
Producing a kilogram of PEEK-ESD takes about 300 MJ of energy and emits 13 kg of CO₂ — more than 97% of polymer grades. Typical recycled content is 0%.
Manufacturability8
PEEK-ESD's machinability is good (60/100, better than 51% of polymer grades); weldability fair (40/100); formability poor (20/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. PEEK-ESD is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PEEK-ESD
Is PEEK-ESD easy to machine?
Machines like unfilled PEEK but the carbon filler is abrasive — use polished-flute carbide or PCD tooling, sharp positive rake, high speed/low feed, air or clean coolant, and stress-relieve thick stock before finish cuts.
Can PEEK-ESD be welded?
Hot-plate, ultrasonic, IR and spin welding work with reduced joint strength; laser transmission welding is impossible because the part is opaque black — mechanical fastening or adhesive bonding after plasma treatment is common.
Can PEEK-ESD be formed, bent or molded?
Inject at 370–400 °C melt with 180–200 °C mold and slow decompression to keep the conductive network intact; hot runners and high shear can break carbon-black/CNT chains and raise resistivity, so gate and screw design are checked against target Ω/sq.
PEEK-ESD chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| conductive carbon blackprimary conductive network in the default ESD grade | 4 – 15 | 8 |
| carbon nanotube (MWCNT)used instead of carbon black in low-particulation ESD-CNT grades | 1 – 5 | 3 |
| carbon fiber30 % in CF30-ESD structural conductive grade | 0 – 30 | 0 |
| PTFE / graphite lubricantonly in ESD-TRIBO bearing grades | 0 – 10 | 0 |
| polyetheretherketone (PEEK) resinhigh-viscosity injection/extrusion grade base polymer | ≥ 85 (balance) |
What surface finishes work on PEEK-ESD?
Cannot be plated or painted usefully in ESD service; specify machined or bead-blasted matte surfaces, deburr carefully to avoid loose carbon particles, and verify surface resistivity per ANSI/ESD STM11.11 after any surface treatment.
How much does PEEK-ESD cost?
PEEK-ESD is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
PEEK-ESD — frequently asked
What is PEEK-ESD used for?
PEEK-ESD is typically used for wafer handling components, electronics fixtures, ESD-safe tooling and cleanroom parts. In short: controlled surface resistivity; cleanroom-compatible PEEK; opaque black only.
What is the yield strength of PEEK-ESD?
PEEK-ESD has a typical yield strength of 88 MPa (12.8 ksi) and a tensile strength of 90 MPa (13.1 ksi) — stronger than 90% of polymer grades. Strength varies by condition: see the 6 listed tempers.
Is PEEK-ESD easy to machine?
Reasonably — machinability is rated good (60/100, better than 51% of polymer grades). Machines like unfilled PEEK but the carbon filler is abrasive — use polished-flute carbide or PCD tooling, sharp positive rake, high speed/low feed, air or clean coolant, and stress-relieve thick stock before finish cuts.
Can PEEK-ESD be welded?
With care — weldability is rated fair (40/100). Hot-plate, ultrasonic, IR and spin welding work with reduced joint strength; laser transmission welding is impossible because the part is opaque black — mechanical fastening or adhesive bonding after plasma treatment is common.
What surface finishes work on PEEK-ESD?
Cannot be plated or painted usefully in ESD service; specify machined or bead-blasted matte surfaces, deburr carefully to avoid loose carbon particles, and verify surface resistivity per ANSI/ESD STM11.11 after any surface treatment.
Can PEEK-ESD be formed, bent or molded?
Inject at 370–400 °C melt with 180–200 °C mold and slow decompression to keep the conductive network intact; hot runners and high shear can break carbon-black/CNT chains and raise resistivity, so gate and screw design are checked against target Ω/sq.
What is the maximum service temperature of PEEK-ESD?
PEEK-ESD is rated for continuous use to about 250°C (482 °F), and briefly to 310°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does PEEK-ESD cost?
PEEK-ESD is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- Victrex PEEK polymer properties and processing guide — Victrex plc (2023)
- TECAPEEK ELS / ELS nano / CF30 stock shape data — Ensinger GmbH (2023)
- Ketron PEEK and Semitron ESd stock shape data sheets — Mitsubishi Chemical Advanced Materials (2023)
- ANSI/ESD STM11.11 — Surface Resistance Measurement of Static Dissipative Planar Materials — ESD Association (2015)
- ASTM D257 — DC Resistance or Conductance of Insulating Materials — ASTM (2021)
- CAMPUS / UL Prospector PAEK compound property records — CAMPUS Consortium (2024)
- ASM Engineered Materials Handbook Vol. 2 — Engineering Plastics — ASM International (1988)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.