56. 75-. The friction coefficient of virgin UHMWPE was 0. 14. It was specifically developed as. UHMW Applications Typical applications include gears, springs, plates, bushings and housings. • Take one piece of wood and soak it in water—this can. %. The current study found that adding 10% recycled silicon to PEEK decreased the rate of wear to 0. grade UHMW, providing excellent value when it comes to applications that do not require FDA approval. Low friction. 75. It can be seen from Fig. (UHMW-PE): Designed for performance. 4 mass% proteins to the phosphate buffered saline (PBS) solution used asThe steady values of coefficients of friction of this UHMWPE sample against Si 3 N 4 ceramic ball reach to. 13 to ∼0. 30-. Dynamic friction coefficient curves exhibited HDPE vs UHMW Friction. Size: Customized Cut to Size. GAR-DUR® UHMW plasticwasassignedan abrasionratingof10; results for the other materials tested are shown in relation to thisbaseline. 0. The coefficient of friction between UHMW to UHMW/Steel surface is considered 0. Extremely low moisture absorption. The coefficient of static friction is generally greater than the coefficient of kinetic friction. The following table gives an indication of the abrasion resistance of Redco™ UHMW polymer. However, UHMW will be the preferred material where greater resistance to impacts is desired. 15 -0. While polytetrafluoroethylene (PTFE, Teflon) is normally regarded as having a lower coefficient of friction versus UHMW, IPX UHMW has a comparable coefficient at . 125 Uhmw Black Round Uhmw Strip Uhmw 1/2 Uhmw Plastic Polyethylene Sheet Uhmw Black Uhmw Polyethylene Uhmw Tube Uhmw 48. 1 under oil lubrication. 13 ±. UHMW is used in: Knee,. This advanced product uses oil filled polymers to lubricate mating surfaces with a dynamic coefficient of friction formula of less than 0. 76 3 Wet Rubber 38. Even though the UHMWPE reveals a low friction against CoCrMo or Ti6Al4V, wear of UHMWPE is unavoidable as shown in the. 10-. 0 MPa m/s for the friction pairs UHMWPE–18Kh2N4MA steel and UHMWPE–45 steel, a rather sharp increase in the friction coefficient to 0. 20 dynamic 0. toughness, the low coecient of friction of UHMWPE yields a self-lubricating, nonstick surface. Low coefficients of friction, wear resistant plastic materials – e. UHMW Applications Typical applications include gears, springs, plates, bushings and housings. 54. Nylon, Acetal - for bearing and wear applications. Five. COMPARISON OF DYNAMIC COEFFICIENT OF FRICTION ON POLISHED STEEL PROPERTY UHMW-PE ULTRA AR ULTRA ARS NYLON 6 NYLON 6/6 NYLON /MoS2 PTFE ACETAL. It has the same low coefficient of friction as standard UHMW while also offering slightly better wear resistance. DuraSurf™ STS also helps reduce. 060" through 12" thick). Even though GAR-DUR® UHMW is. UHMW is a tough, wear resistant plastic that combines an incredibly low coefficient of friction with. The friction coefficients of UHMWPE/PMF-2. UHMW Features. UHMWPE is a part of the family of polyethylene thermoplastics. f k = μ k N, 6. 10 - . Product Information. ( d ) Friction coefficients of uncoated, UHMWPE coated and. X-LINKED UHMW is typically used for chute and hopper liners handling products such as sand, mineral fines, cement, coal and grain plus baghouse and chain drag lining. 2. 65-. A vaclue of 100 was designated for the amount of volumetric abrasion. Low moisture absorption Coefficient of Friction (on steel, static) Coefficient of Friction (on steel, dynamic) Continuous Service Temperature Hardness, Shore D UHMW is a tough, wear resistant mechanical plastic that combines an incredibly low coefficient of friction with outstanding impact strength at low temperatures, ideal for reducing wear and friction in Coefficient of friction Compression set after 24 hr at 175C % Compressive modulus GPa Compressive strength MPa Elongation at break % Hardness - Rockwell -1 Izod impact strengt h J m-1 Poisson's ratio Tear strength N mm Tensile modulus GPa Tensile strength MPa Polypropylene PP 13-16 0. Coefficient of friction, ASTM 1894 metal= Rz 2,5 V, Pm= 2 N/mm2 V= 150 mm/min Shore-hardness, 3-s-value 6mm ate Water absorption Flammability Method ASTM 0792 ISO 1183-1Fig. Tivar® HPV – Bearing Grade Ultra-Low Friction UHMW Sheet $ 722. Its coefficient of friction is significantly lower than nylon and acetal, and is comparable to PTFE, with superior abrasion resistance. UHMW’s coefficient of friction is also quite low. It is highly resistant to corrosive chemicals, except oxidizing acids; it has very low moisture absorption and a very low coefficient of friction. It is more. 4–0. UHMW polymers feature a low coefficient of friction, well-suited for manufacturing chain channel, wear strips, belt scrapers, guides, and rollers. 25 . 75 . Properties of UHMW. Stellit balls or ZrO2 balls Figures - available via license: Creative Commons Attribution 3. Micrographs on the friction surface of (a) the UHMWPE/HDPE and (b) nanocomposites with 3. 06 . To develop prediction models of the coefficient of friction (COF) between AISI 316L steel and ultra-high molecular weight polyethylene (UHMWPE) lubricated with fetal bovine serum dilutions, the arthrokinematics and loading conditions prescribed by the ISO 142433: 2014 standard were translated to a simpler geometrical setup, via Hertz. 19: Brass: Cast Iron . Reduces maintenance and downtime in high-precision applications. It has outstanding abrasion resistance and an extremely low coefficient of friction. UHMW Mechanical Properties Comparison of dynamic coefficient of friction on polished steel PROPERTYThere are a few standout tests that have lower friction coefficients and seem to increase with pressure (the off-axis cases involving a short 45°- bottom uncoated strip on a 45° or. 6 0. Suitable for machining and fabrication. 96% for 720 h aging time and 80 °C. 5 – 0. TIVAR® 1000 Virgin UHMW-PE components are often favored as solutions for bearings, bushings, chain guides, sprockets, gears, rollers, paddles, and scrapers. Download White Paper. 32 to ∼0. Its strength and ability to resist wear and tear can, in some cases, outperform. F = μkN F = μ k N. 1. 25 and 0. 1-800-553-0335 Ask a Plastics Expert Locations Sign In Cart (0) There are so many differences between products that they are best described in the list. 0. UHMW is an odorless, tasteless, and non-toxic material. It has a slightly higher coefficient of friction than Teflon. Download scientific diagram | Friction coefficients for UHMWPE sliding against CoCrMo at 1, 2, and 5 N in PBS (•), BSF ( ), and BSA ( ). 77 0. Influence Of Stacking Sequence On The Impact Behaviour Of Uhmwpe Soft. 15-. UHMWPE offers excellent wear resistance and a low-friction surface, and has been effectively used in artificial joint replacements such as knee and hip replacements [115]. ATIVAR® UHMW-PE sets the standard for engineered polymers with a unique combination of wear and corrosion resistance, low friction surface and impact strength. Because of its low coefficient of friction, UHMW-PE is self-lubricating; it replaces unwanted grease and oil in many applications such as bearings and conveyors. COMPARISON OF DYNAMIC COEFFICIENT OF FRICTION ON POLISHED STEEL UHMW-PE ULTRA AR ULTRA ARS NYLON 6 NYLON 6/6 NYLON / MoS2 PTFE ACETAL DRY . 15 - 0. and stand pipes. Self-lubricating and very low coefficient of friction;With the UHMWPE roughness of 0. 1 x 10-4. 03. 10-. These sheets are ideal for food, medical and cleanroom applications. The coefficient of friction (COF) was increased up to 65. Applied normal loads were 203 N; *applied normal load was 122 N. 1. For both groups the initial coefficient of friction is relatively high and then stabilizes over time. Introduction. TIVAR® DrySlide is a UHMW-PE product with an internal lubricant built into the polymer matrix with higher molecular weight. Teflon also has other interesting properties. f s ≤ μ s N, 5. The material has a low surface resistance of 10⁶ to 10⁹ Ω/sq. e. 1. UHMW. 14 : Sand Wheel Wear/Abrasion Test: 95: UHMW=100: Coefficient of Linear Thermal Expansion: 11. Outrigger pads can prevent cranes and boom trucks from. UHMW is often used in the manufacturing of food processing equipment, conveyor systems, medical devices, and other industrial. Due to its low coefficient of friction, parts made from UHMW will also produce less noise when in motion. It looks like the coefficient for HDPE is . The coefficient of friction would be determined by the force required to move the block divided by the weight of the block as measured with gravity. PTFE is substantially much more expensive than UHMW. When angle amplitudes are ±5°,. Delrin® AF DE588 – 20% PTFE fiber filled homopolymer acetal with outstanding friction and wear characteristics. The critical difference between UHMW and HDPE is that UHMW is characterized by long polymer chains with extremely high molecular weights. Figure 8. 07 in. This enhanced coefficient of friction leads to better wear life of mating surface. Concrete (Wet) Rubber. 3 is it clear that for pv ≈ 0. Friction on an inclined plane. It is seen that loading with the CNF resulted in a halving friction coefficient compared with neat UHMWPE due to the solid lubricant effect of the nanofiller . 21 0. UHMW-PE molding and extrusion materials: FDA: Natural: Polystone® M (UHMW-PE) Is in compliance with FDA regulations as listed in the Federal. The agriculture industry has found that using UHMW-PE as opposed to steel in scraper applications increased fuel economy, reduced noise levels and increased wear resistance. The coefficient of friction and wear of the UHMWPE pins were determined by means of a pin-on-disc tribometer under lubricated sliding conditions. 930g/cm³. 04-. The more resistive the metal surface or the heavier the block the higher the coefficient of friction ( μ) value. They have values of friction coefficient for HDPE and UHMWPE . LubX® C is a specially formulated high-performance material that is a mixture of UHMW Polyethylene with added solid lubricants to reduce friction. 4 –0. 0% untreated CNFs. UHMW has surface and chemical properties that are rare to find in high-performance polymers. 175 [34]. 2. PTFE is more slippery than UHMW (despite both having a low coefficient of friction) UHMW has far better wear properties than PTFE. Download scientific diagram | Coefficients of friction of various UHMWPE materials. The coefficient of friction of UHMWPE along an entire walking cycle using a ball-on-disc tribometer under arthrokinematics and loading conditions prescribed by ISO 14243-3:2014. And UHMW. Quality uhmw coefficient of friction for sale from uhmw coefficient of friction suppliers - 8246 uhmw coefficient of friction manufacturers & wholesalers from China. Due to UHMW's high molecular weight, UHMW parts will also perform better where overcoming the forces of abrasion and friction is desired. The specimen is exposed to an abrasive wheel for 1000 cycles and weight loss of a material is measured. While not better than PTFE’s famously low friction, it’s far better than any elastomer or urethane seal material and lower than most comparable plastics such as Nylon or Acetal. It was found that under the lubrication of aqueous medium, the friction and wear. UHMWPE wear-resistant guide wheels are made of UHMWPE material, which has an extremely low coefficient of friction and excellent sliding properties. Coefficient of friction: It is difficult to beat PTFE on this parameter, although UHMWPE comes fairly close. La. In addition to enhancing the wear resistance of the material, the incorporated and evenly dispersed oil gives this material a considerably lower coefficient of friction than standard UHMW-PE products. Coefficient of Friction 73°F on Steel--static 0. A subset of the thermoplastic polyethylene, UHMW (aka UHMWPE) is characterized as one of the miracle polymers of the 20th century. 06. Combined with the experimental results with a load of 50 N, higher or lower loads will adversely affect the friction reduction effect of UHMWPE-g-AA. 6 and a dynamic coefficient range of 0. 2. Figure 6 shows swing friction coefficient of CoCrMo/UHMWPE contact pair under different amplitude of angles in 25% bovine serum. 8. For different friction coefficient ratios of dual mobility hip implant, (1) contact pressure and contact area varied with applied loads. Because of its high melt viscosity, conventional. 2. 40 . 2 (but can vary with surface finish and speed). RE: friction coefficient of UHMW and HDPE kjoiner (Mechanical) (OP) 1 Nov 02 15:33. In stock. Low friction. 1), however the wear resistance is 8 times better than PTFE. UHMW is an odorless, tasteless, and non-toxic material. 8 1 PA 6/6 PA ‐ 6 POM H. I see that there is now Delrin AF, which has threads of Teflon added. TIVAR® Oil-Filled UHMW-PE is an ultra high molecular weight polyethylene material that truly lives up to the self-lubricating description. 7 MPa) so you will need more material to carry the same load. 10 - 0. Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE). Its coefficient of friction is significantly lower than that of acetal. UHMW Grades – Several grades of UHMW are available, including enhanced bearing and wear, and FDA compliant. 2 to 2. Its coefficient of friction is significantly lower than nylon and acetal, and is comparable to PTFE, with superior abrasion resistance. The fracture toughness, low friction coefficient, high impact strength, and low density of UHMWPE have made it a popular choice as the articulating surfaces of joint replacements, such as hip, knee, ankle, and shoulder. 03. 20 0. Lowest Friction Available. The data was fitted to a. With increasing protein concentration (above 2%), there was a trend for decreasing friction for both material combinations. Coefficient of friction 73°F – – Static . TIVAR® Oil-Filled UHMW-PE is an ultra high molecular weight polyethylene material that truly lives up to the self-lubricating description. Cut-To-Size Ultra High Molecular Weight Polyethylene brands like Tivar, Duravar, Polystone. Variation of coefficient of friction with surface roughness under (a) dry and (b) lubricated conditions. 75 2 Wet Rubber 37. UHMW exhibits excellent chemical, abrasion, and impact resistance, as well as a low coefficient of friction. Nylon, Acetal - for bearing and wear applications. 45 – 0. Antistatic Low-Friction UHMW Tape. 5. The most common value found for the coefficient of kinetic friction (μ k) and coefficient of static friction (μ s) for Teflon is 0. UHMW Mechanical Properties Comparison of dynamic coefficient of friction on polished steel PROPERTY There are a few standout tests that have lower friction coefficients and seem to increase with pressure (the off-axis cases involving a short 45°- bottom uncoated strip on a 45° or 90° long strip). PTFE is slippery than UHMW (although both have a lower coefficient of friction) UHMW has much better wear properties than PTFE. HC-PE showed a slightly lower coefficient of friction than LC-PE. The Food and Drug Administration has approved natural virgin UHMW for use in the food. It has all of the properties of high-density polyethylene (HDPE), the ability to withstand intense acids and alkalis, and a variety of organic solvents. 2014. 87 and 0. 7 0. Characteristics of PE include: toughness, excellent chemical resistance and electrical properties, low coefficient of friction, near-zero moisture absorption, light weight and ease of processing. Therefore, it is certain that UHMWPE is a good engineering. • Coefficient of friction depends inversely on the applied load along walking cycle. 5 µm, the coefficient of friction statistically significant increases when. 6 g and 3. Learn more at Curbell Plastics. This self-lubricating UHMW-PE is an incredibly versatile engineered polymer that is prevalent in a variety of industries and applications. The maximum coefficients of friction for UHMWPE-1 and UHMWPE-2 are 0. The coefficient of friction (COF) was increased up to 65. GAR-DUR® UHMW plasticwasassignedan abrasionratingof10; results for the other materials tested are shown in relation to thisbaseline. 5 mm (0. 13 to ∼0. 4 MPa m/s and pv ≈ 1. Regards, Peter P . UHMW PE, Oil Filled. 0 Unported Content may be subject to. RE: friction coefficient of UHMW and HDPE kjoiner (Mechanical) (OP) 1 Nov 02 15:33. After friction and vibration tests, it was found that WS 2 reduced the coefficient of friction of TPU matrix with its excellent lubricating properties, and after adding UHMWPE, the coefficient of friction continued to drop to 0. 44 0. 5 Coefficient of friction (dynamic) 0. 25, which is higher than the coefficient of friction of PTFE (0. 15 for UHMW. Some nylons can be a real bitch to machine and Nylatron can be a little brittle so be careful not to machine too aggressively in the wrong spots. The exceptional hardness and slick surface is ideal for maintaining a gliding. 0. PTFE is significantly more expensive than UHMW. 03 to 0. It was shown that the PEEK (pin)-on-UHMWPE (disk) tribological pair is well compatible, characterized by a low coefficient of friction (f = 0. Select options; Tivar® H. UHMWPE Black PE-1000 (Ultra High Molecular Weight Polyethylene) Colour: Black Density: 0. 10 - 0. The considerably lower coefficient of friction of LubX® eliminates the possibility of the slip-stick effect (backsliding) almost completely and thus increases process stability. It is commonly employed in scenarios where its exceptional wear resistance and minimal coefficient of. 76 From these results, it is clear that a coefficient of static friction of . Table 1. The results obtained for a combination: PE-UHMW polyethylene - ANSI 316L stainless steel (the static friction coefficient µ 0 as a function of the contact pressure p) Rys. The second is the friction coefficient (Table 1). HDPE has a coefficient of friction of around 0. 28: Brick: Wood. Skived, UHMW-PE (Ultra High Molecular Weight Polyethylene) backed tape with thickness offerings of 0. static, impending slip. 3M™ UHMW-PE Film Tape 5421 is a. Coefficient of friction: D1894: 0. Ultra-high molecular weight polyethylene All existing data on UHMWPE indicate that for (UHMWPE) is a unique polymer with outstanding very elderly patients,. The coefficient of friction was nearly half than that of unfilled PEEK and decreased to a fourth at 150. The coefficient of friction is an important tribological property of polymer materials. A value of 100 was designed for the amount of volumetric abrasion loss to UHMW specimen. PTFE and PE Wax show a low initial coefficient which quickly increases. Low coefficients of friction, wear resistant plastic materials – e. Friction coefficient versus friction time curves of the UHMWPE/HDPE and the nanocomposites with untreated CNF. 11 to 0. Available Geometries. Download : Download full-size image; Fig. UHMW formulations include static reduction, lower friction, higher compressive strength, increased hardness, and temperature resistance to 280 o F. 4. High impact resistance. 5 μm, while the friction coefficient. The wear behaviour of UHMWPE sliding against AISI 431 martensitic stainless steel, in the absence of abrasive particles, was investigated during a series. Due to an extremely low coefficient of friction, its inherent lubricity minimizes heat-generating friction that tends to. 50. Table 3: Tyre Dragging Tests – Coefficients of Friction Coefficient of Friction Site No Grass Surface Dry Wet 1 2 4 5 White Clover Rye-grass (long) Browntop Agridark 0. Coefficient of friction against hardened and ground steel P= 0. 28 0. 25 : 0. Moderate temperature range (-40°F - 225°F) Adhesive back makes it easy to apply. 0 - 4. 4 0. UHMW stands for Ultra High Molecular Weight Polyethylene and is defined as a polyethylene whose molecular weight is 3. Moderate temperature range (-40°F - 225°F) Adhesive back makes it easy to apply. N = normal force exerted on the body by the plane due to the force of gravity i. 05 to 0. UHMW is typically stocked in 48″ x 120″ sheets where PTFE comes in 48″ x 48″ plates. This electrical conductivity means that the material is ATEX compliant. RE: friction coefficient of UHMW and HDPE kjoiner (Mechanical) (OP) 1 Nov. 0 m/s, contact. Because it is self-lubricating and low friction, UHMW works well for low-speed, sliding contact parts. McKellop et al. Oil filled UHMW has a low coefficient of friction and good impact resistance. 35. It is odorless, tasteless, and nontoxic. 003, 0. The UHMWPE fender facing pad has the features of light, anti-impact, corrosion resistance, anti-ultraviolet ray, aging resistance, low friction, non-pollution. This UHMW PE (ultra high m. 020 in. 1. Environment and disposal technology. A great deal of research in recent decades has focused on further improving its mechanical and tribological performances in order to provide durable. 09-0. The curves of the composite motion and the swing friction coefficient have the characteristics of going up first and dropping after and finally stabilizing. This paper studies the effect of contact stress on friction and wear of ultra-high molecular weight polyethylene (UHMWPE) acetabular cups by means of friction and wear joint simulator testing. Chui and his Co-workers coated PPy on UHMWPE fiber to enhance its adhesion with an epoxy resin [58], [59]. UHMW-PE based products offer a host of exceptional attributes that include high abrasion resistance, low coefficient of friction and one of the highest impact strength ratings of any thermoplastic. 1 2. UHMW (excluding reprocessed UHMW) has been approved by the Food and Drug. Regards, Peter P . 1. 12: against self - dynamic: 40 psi/50fpm : 0. Coefficient of Friction 0. 5 inches and lower a UHMW pad of 3 mm thickness and for pipe sizes NPS 2 inches and higher a UHMW pad of minimum thickness of 6 mm is used in between pipe support and secondary structural member for isolation purposes and friction reduction. It has extremely low moisture absorption and a very low coefficient of friction. UHMW’s host of exceptional attributes such as high abrasion resistance, low coefficient of friction and unparalleled impact resistance, even in cryogenic environments, make it a favorite. • Lasts longer than Virgin UHMW • Reduced chain wear • CUSTOM channel profiles available • Channel. This tape line is designed for mechanical applications where high abrasion resistance and a low coefficient of friction is required. It was found that the tribological and mechanical degradation was attributed to the damage in the molecular structure of. While it remains true that the coefficient of friction between PTFE. This property allows it to be used as containers and pipelines for reactive chemicals. 0 wt% were 0. Vertical lines, loads corresponding to. Concrete (Wet) Rubber. 1 5. Stocked as sheets, rods, tubes and profiles, it can be machined for your specific application. This is a rough guide - as others have mentioned, it will vary a lot depending on the specific filament, geometry, etc. Because there are so many influencing factors that are not mutually independent, it is not possible to quote exact values for the coefficient of friction. % UHMWPE in polyester resin brought down the value of μ to nearly half to that of polyester resin and 1/3rd of cotton polyester. • Cavities act more like surface defects than lubrication enhancers. 8 0. 20 kinetic) when used on steel. Evolution of the friction coefficient of the UHMWPE and UHMWPE-g-AA samples under seawater lubrication with a load of 50 N. The value of μ s is generally higher than the value of μ k for a given combination of materials. With our ultra-precise cutting tools and decades of experience, Reading Plastic can deliver the high-quality parts you need right on time. Date：2021-01-11. 30 0. It has no units. com. Thanks for the link. Impact fatigue. Request a Quote. (SCF) improved the wear resistance and also reduced the coefficient of friction up to an optimum concentration of 20 vol. 20 . Polyethylene PE500-1000 (UHMWPE) Sheet to solve friction, wear and material flow problems in many areas of industry. 10 -1. TIVAR 88-2 Ultra High Molecular Weight Polyethylene UHMW-PE UV stabilized shapes offer the lowest coefficient of friction of all TIVAR 88 grades. The friction coefficient and specific wear rate were presented as a. UHMW rod comes in diameters that range from 1/2 to 12 inch, 10-feet long. This self-lubricating polymer has excellent chemical resistance and a broad temperature. Friction coefficient was mostly influenced by axial load; its increase led to a decrease in friction. 0 /5 · 0 reviews ·TapeCase UHMW Polyolefin Film Tape 2302-10, is a natural colored 11. 28 Coefficient of Friction, Plastics to Plastic Static 0. Download scientific diagram | Coefficients of friction of various UHMWPE materials. 1 under oil lubrication. Its coefficient of friction is very low (0. 07, 0. Acetal (brand name Delrin) does pretty good In all these categories. The uhmw u channel stock guide rail has strong abrasion resistance, and its abrasion resistance is 5 times that of nylon 66 and 7 times that of carbon steel. 060 represents, in our experience, skis with below average gliding properties and would therefore have potential for improvements. A higher load will destroy the colloidal anti-friction layer. The OMEGA- ULTRA® UHMWPE is defined as polyethylene whose molecular weight is 3,100,000 or higher. Trelleborg's FQ1000 ultra-high molecular weight polyethylene (UHMW-PE) is the first choice material for facing steel fender panels and other heavy duty applications. The friction coefficient of the chain guide is small, only 0. 15-. Considering the porosity, mechanical properties, and friction coefficient, the optimal process parameters of the UHMWPE porous material were as follows: The sintering temperature was 180 °C or 190 °C, and the charging amount was between 3. 32 to ∼0. It is very resistant to most chemicals, UV radiation, and micro-organisms, but doesn’t have the same creep resistance as Delrin. Call: 01992 515880. UHMW PE, Static Control. A system in which f k = μ k N is described as a system in which friction behaves simply. UHMW (ultra-high molecular weight polyethylene) has extremely high abrasion resistance, even exceeding that of steel. 76 0. 61-Brake (Composite) Cast Iron. UHMW. The very low coefficient of friction provides a lubricated surface that is virtually maintenance free. Coefficient of friction against hardened and ground steel P= 0. 05: Cadmium. 25 : Maximum Static Bearing Load (P) PTM 55007:. It could be seen that the friction coefficient of UHMWPE under dry sliding is about 0. 20: Izod Impact Strength 73°F: KJ/m 2: D 4020-96: 125: Hardness 73°F-D 785: Shore D 62 - 66: Melting Point °F: D 789:. TIVAR HPV UHMW-PE Ultra High Molecular Weight Polyethylene TIVAR HPV Ultra High Molecular Weight Polyethylene UHMW-PE is a FDA 21 CFR § 177. 14.