Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Product Overview
- Excellent chemical resistance
- Very low moisture absorption
- Inherently good wear and abrasion resistance
- Unaffected by continuous exposure to hot water or steam
- Enhanced compressive strength and stiffness
Ketron® PEEK grades offer chemical and hydrolysis resistance similar to PPS, but can operate at higher temperatures. PEEK 1000 offers steam and wear resistance, while carbon-reinforced PEEK provides excellent wear capabilities. Our latest grade, PEEK HPV, offers outstanding bearing performance. PEEK can be used continuously to 480°F (250°C) and in hot water or steam without permanent loss in physical properties. For hostile environments, PEEK is a high strength alternative to fluoropolymers. PEEK carries a V-O flammability rating and exhibits very low smoke and toxic gas emission when exposed to flame.
Applications & Uses
- Applications
- Plastics & Elastomers End Uses
- Product Applications
- Pump Wear Rings - Ketron® CA30 PEEK improves centrifugal pump efficiency by permitting closer running tolerances and eliminating corrosion, galling and wear problems (Prior material: Bronze).
- Bearings, Rollers, Gears
Properties
- Color
- Flame Rating
- Mechanical Properties
- Thermal Properties
- Miscellaneous Properties
| Value | Units | Test Method / Conditions | |
| Tensile Strength | 16000 | psi | ASTM D638 (8) |
| Tensile Strain (Elongation) at Break | 3 | % | ASTM D638 (8) |
| Tensile Modulus of Elasticity | 1400 | ksi | ASTM D638 (8) |
| Shear Strength | 11000 | psi | ASTM D732 |
| Compressive Strength | 28000 | psi | ASTM D695 (11) |
| Izod Impact (Notched) | 1.4 | ft.lb/in | ASTM D256 |
| Flexural Strength | 23000 | psi | ASTM D790 (13) |
| Flexural Modulus of Elasticity | 1000 | ksi | ASTM D790 |
| Hardness (14) | 108 | Rockwell M | ASTM D785 |
| Hardness (14) | 125 | Rockwell R | ASTM D2240 |
| Value | Units | Test Method / Conditions | |
| Melting Temperature (DSC, 10°C (50°F) / min) | 644 | °F | ASTM D3418 |
| Thermal Conductivity (73°F) | 6.37 | BTU in./(hr. ft² ˚F) | — |
| Coefficient of Linear Thermal Expansion (-40 to 300°F) | 23 | µin./in./°F | ASTM E-831 (TMA) |
| Heat Deflection Temperature (Method A: 1.8 MPa (264 PSI)) | 450 | °F | ASTM D648 |
| Continuous Allowable Service Temperature in Air (20.000 hrs) (3) | 480 | °F | — |
| Flammability (3 mm) (5) | V-0 | — | UL 94 |
| Value | Units | Test Method / Conditions | |
| Specific Gravity | 1.42 | — | ASTM D792 |
| Water Absorption (After 24h Immersion in Water of 73°F) | 0.15 | % | ASTM D570 (17) |
| Water Absorption (At Saturation in Water of 73°F) | 0.5 | % | ASTM D570 (17) |
| Wear Rate | 102 | in³.min/ft.lbs.hr x 10⁻¹⁰ | QTM 55010 (19) |
| Dynamic Coefficient of Friction | 0.24 | — | QTM 55007 (20) |
| Limiting PV (100 FPM) | 17000 | ft.lbs/in².min | QTM 55007 (21) |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Technical Details & Test Data
- Engineering Notes
The stiffness of all PEEK grades drops off significantly and expansion rate increases above its glass transition temperature (Tg) of 300°F (150°C). A material like Torlon* PAI would be better suited for close tolerance bearings or seals operating at temperatures higher than 300°F (150°C)
- Note
- Thermal Properties - The figures given for these properties are for the most part derived from raw material supplier data and other publications.
- (2) Values for this property are only given here for amorphous materials and for materials that do not show a melting temperature (PBI, PAI & PI). DMA settings, oscillation amplitude of 0.20 mm; a frequency of 1 Hz; heating rate of 2°C/min
- (3) Temperature resistance over a period of min. 20,000 hours. After this period of time, there is a decrease in tensile strength – measured at 23 °C – of about 50 % as compared with the original value. The temperature value given here is thus based on the thermal-oxidative degradation which takes place and causes a reduction in properties. Note, however, that the maximum allowable service temperature depends in many cases essentially on the duration and the magnitude of the mechanical stresses to which the material is subjected.
- (4) Impact strength decreasing with decreasing temperature, the minimum allowable service temperature is practically mainly determined by the extent to which the material is subjected to impact. The value given here is based on unfavorable impact conditions and may consequently not be considered as being the absolute practical limit.
- (5) These estimated ratings, derived from raw material supplier data and other publications, are not intended to reflect hazards presented by the material under actual fire conditions. There is no ‘UL File Number’ available for these stock shapes.
- Mechanical Properties - Most of the figures given for the mechanical properties are average values of tests run on dry test specimens machined out of rods 40-60 mm when available, else out of plate 10-20mm. All tests are done at room temperature (23° / 73°F)
- (7) Test speed: either 5 mm/min or 50 mm/min [chosen acc. to ISO 10350-1 as a function of the ductile behavior of the material (tough or brittle)] using type 1B tensile bars
- (8) Test speed: either 0.2"/min or 2"/min or [chosen as a function of the ductile behavior of the material (brittle or tough)] using Type 1 tensile bars
- (9) Test speed: 1 mm/min, using type 1B tensile bars
- (10) Test specimens: cylinders Ø 8 mm x 16 mm, test speed 1 mm/min
- (11) Test specimens: cylinders Ø 0.5" x 1", or square 0.5" x 1", test speed 0.05"/min
- (12) Test specimens: bars 4 mm (thickness) x 10 mm x 80 mm; test speed: 2 mm/min; span: 64 mm.
- (13) Test specimens: bars 0.25" (thickness) x 0.5" x 5"; test speed: 0.11"/min; span: 4"
- (14) Measured on 10 mm, 0.4" thick test specimens.
- (15) Electrode configuration: Ø 25 / Ø 75 mm coaxial cylinders; in transformer oil according to IEC 60296 ; 1 mm thick test specimens.
- (16) Measured on disks Ø 50 mm x 3 mm.
- (17) Measured on 1/8" thick x 2" diameter or square
- (18) Test procedure similar to Test Method A: “Pin-on-disk” as described in ISO 7148-2, Load 3MPa, sliding velocity= 0,33 m/s, mating plate steel Ra= 0.7-0.9 μm, tested at 23°C, 50%RH.
- (19) Test using journal bearing system, 200 hrs, 118 ft/min, 42 PSI, steel shaft roughness 16±2 RMS micro inches with Hardness Brinell of 180-200
- (20) Test using Plastic Thrust Washer rotating against steel, 20 ft/min and 250 PSI, Stationary steel washer roughness 16±2 RMS micro inches with Rockwell C 20-24
- (21) Test using Plastic Thrust Washer rotating against steel, Step by step increase pressure, Test ends when plastic begins to deform or if temperature increases to 300°F.