Ryertex is a family of fiber reinforced plastic composites used as electrical insulation or to replace metal in wear applications where high speed, load, and temperatures are involved, or where there tends to be a loss of lubrication.  Ryertex is used in industrial applications including wear plates and fiber bearings in steel and aluminum mills, copper processing, paper and lumber mills, oil and gas, mining, military, aerospace, rail/locomotive, off-road and construction equipment.

The Ryertex line includes all NEMA  grades with common substrate/resin combinations including glass epoxy, glass phenolic, and multiple combinations of canvas phenolic.  Other substrates include paper, linen and aramid fiber while melamine and silicone can also be used for the resin systems.  One of the most common grades that we see includes the fiberglass composite FR4 due to its high strength and thermal properties. Ryertex C is known in many places by the generic name “Micarta” and may be the most common wear material used in industrial settings.

While Ryertex is a globally recognized brand name, there are a number of other names in the marketplace that are also thermoset laminate composites. These include: Micarta, Bakelite, “Phenolic”, Resiten, Garolite, Acculam, Lamitex, Gatke, Scan Pac, Spauldite, Phenolex, Textolite, Tufnol, Laminex, Schwartz, Current, and Synthane. WS Hampshire can cross reference your requirements to the corresponding Ryertex offering.

Thermoset laminates were first developed by Leo Baekeland in 1907 when he introduced Bakelite, a non-flammable thermoset utilizing phenolic resin with a paper substrate. This material has been used in everything from engine parts to jewelry to electronics. Products that were originally made from Bakelite include telephone mouth and ear pieces, buttons, and frying pan handles.

Ryertex was first introduced in the 1930’s as a metal replacement. Demand grew shortly thereafter as World War II put a strain on the nation’s metal supply and Ryertex was quickly seen as a viable option in a wide variety of industrial applications.

Today, Ryertex is a trade name of WS Hampshire who has built an outstanding reputation for producing high quality, custom fabricated parts for use in many industrial applications including bearings, bushings, and other wear parts.

 

Request Information    View Ryertex Product Catalog

 

  • Sheet Only
    • Material
      Grade Substrate Resin Modifier Mil Spec NEMA Form Applications
      223 Canvas Phenolic – MIL-P-18324D,
      ADM2      		 – Sheet Mechanical grade, piston & packing rings,
      pump valve, doctor blades, stave and
      rudder bearings for marine industry.
      C Canvas Phenolic – MILI-24768/
      16FBM      		 C Sheet Mechanical grade, gears, pinions,
      spacers, structural, bearings, bushings,
      wear parts, electrical insulation.
      CE Canvas Phenolic – MIL-I-24768/14 CE Sheet Mechanical/Electrical grade, small gears,
      pinions, radio parts, marine switch board panels,
      electrical insulation.
      CG Canvas Phenolic Graphite – – Sheet Mechanical grade, bearings, bushings,
      wear parts where self lubrication and
      low coefficient of friction is necessary.
      HDA Canvas Phenolic Alumina – – Sheet Heavy industrial applications for bearings,
      bushings and wear parts that encounter high energy loads as the material possesses improved impact
      resistance and
      does not fatigue from repeated shock loads.
      HDM Canvas Phenolic Molybdenum Disulfide – – Sheet Heavy industrial applications for bearings,
      bushings and wear parts that encounter high energy loads as the material possesses improved impact
      resistance and does not fatigue from repeated shock loads.
      Moly has been added to provide self-lubricating properties.
      L Linen Phenolic – MIL-I-24768/15 L Sheet Mechanical grade, fine-tooth gears,
      radio parts, terminal boards where tight tolerance and
      improved surface finish are required.
      LE Linen Phenolic – MIL-I-24768/13FBE LE Sheet Electrical/mechanical grade, marine relay bases,
      terminal bases & strips, radio parts, high humidity applications, electrical insulation.
      G3 Fiberglass Phenolic – MIL-I-24768/18 G3 Sheet Mechanical grade, high temperature,
      low moisture absorption, gaskets,
      seals, structural, industrial wear parts.
      G5 Fiberglass Melamine – MIL-I-24768/
      8GMG      		 G5 Sheet Electrical/Mechanical grade, switchboard panels,
      arc barriers, circuit breaker parts, structural &
      electrical parts, electrical insulation.
      G7 Fiberglass Silicone – MIL-I-24768/18 G7 Sheet Electrical grade, class H insulation,
      heating/appliance insulation,
      electrical insulation.
      G9 Fiberglass Melamine – MIL-I-24768/
      1GME      		 G9 Sheet Electrical/Mechanical Grade, marine switchboard panels,
      structural parts, electrical insulation.
      FR4 Fiberglass Epoxy – MIL-I-24768/27
      Type GEE-F      		 FR4 Sheet Electrical/mechanical grade, high humidity applications,
      power generation and transmission, electrical insulation,
      industrial wear parts.
      G11 Fiberglass Epoxy – MIL-I-24768/3
      Type GEB      		 G11 Sheet Electrical /Mechanical grade, rotor slot insulation,
      structural members at elevated temperatures,
      UL listed, electrical insulation.
      S/T Aramid Phenolic Molybdenum Disulfide – – Sheet Mechanical grade, high temperature,
      self-lubricating bearings,
      bushings, wear parts.
      X Paper Phenolic MIL-I-24768/12PBM X Sheet Mechanical grade, terminal boards,
      structural parts, switch bases, washers,
      panels, electrical insulation.
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    • Physical
      Specific Gravity Rockwell Hardness Moisture Absorption Flexural Strength Flexural Modulus Tensile Strength Flexural Modulus Izod Impact Strength Charpy Impact Strength Compressive Strength Compressive Modulus ASTM D229 Condition A Shear Strength
      Test ASTM D792 ASTM D785 .250″ build up ASTM D570 Condition A ASTM D570 Condition D1-24/23 IEC 60893-2/8.2 Condition A ASTM D256 Condition A, LW/CW ASTM D256 Condition E-48/50, LW/CW IEC 60893-2.5.1 Condition A, LW/CW ASTM D790 Condition A, LW/CW ASTM D638 Condition A, LW/CW ASTM D790 Condition A, LW/CW ASTM D256 Condition A, LW/CW ASTM D256 Condition E-48/50, LW/CW IEC 60893-2.5.4.3 Condition A, LW/CW IEC 60893-2.5.4.2 Condition A LW/CW ASTM D695 Condition A, Flatwise ASTMD695 Condition A ASTM D229 Condition A ASTM D229 Condition D-48/50 ASTM D732 Condition A, Perpendicular
      Units – M Scale % % mg psi psi – kpsi psi kpsi ft-lb/in ft-lb/in – kJ/m2 psi kpsi lb lb psi
      223 1.44 105 1.2 – – 18000 – – – 12000 – – 2.00/
      1.2      		 – – 38000 – 1700 – 13000
      C 1.37 100 3.5 – – 18,000/
      17,000      		 – – 1,600/
      1,500      		 12,000/
      9,700      		 1,600/
      1,500      		 – 3.10/
      2.70      		 – – 34000 – 2500 2300 14000
      CE 1.37 100 2 – – 17,500/
      15,000      		 – – 1,600/
      1,500      		 11,000/
      9,000      		 1,600/
      1,500      		 – 1.70/
      1.5      		 – – 34000 – 1700 1700 14000
      CG 1.4 90 2.2 – – 19,000/
      15,000      		 – – 1,200/
      1,000      		 10,000/
      7,000      		 1,200/
      1,000      		 – 1.7/
      1.4      		 – – 38000 – 1800 – 13000
      HDA 1.42 95 0.06 – – 20,200/
      13,600      		 – – 1,358/
      1,034      		 11,400/
      11,300      		 1,358/
      1,034      		 – 6.36/
      2.83      		 – – 36500 – 2300 2100 13900
      HDM 1.4 80 0.08 – – 16,200/
      12,700      		 – – 937/
      818      		 10,200/
      6,300      		 937/
      818      		 – 6.00/
      2.89      		 – – 34000 – 2100 2000 12200
      L 1.34 100 2.3 – – 24,500/
      18,500      		 – – 1,700/
      1,300      		 14,000/
      10,000      		 1,700/
      1,300      		 – 1.70/
      1.35      		 – – 38000 – 2000 – 13500
      LE 1.34 100 – 1.9 – 22,000/
      16,000      		 – – 1,600/
      1,200      		 13,000/
      9,000      		 1,600/
      1,200      		 – 1.35/
      1.10      		 – – 36000 – 1900 – 13500
      G3 1.8 110 2 – – 55,000/
      50,000      		 – – 1,800/
      1,400      		 42,000/
      34,000      		 1,800/
      1,400      		 – 12.0/
      11.0      		 – – 76000 – 1500 – 18000
      G5 1.9 115 0.5 – – 70,500/
      63,200      		 – – 2,000/
      1,700      		 50,000/
      35,000      		 2,000/
      1,700      		 – 16.50/12.50 – – 85000 – 1900 – 18000
      G7 1.88 100 0.19 – – 24,300/
      21,700      		 – – – – – – 17.00/
      11.50      		 – – – 750 – –
      G9 1.9 115 0.5 – – 70,500/
      63,200      		 – – 2,000/
      1,700      		 50,000/
      35,000      		 2,000/
      1,700      		 – 16.50/
      12.50      		 – – 85000 – 1900 – 18000
      FR4 1.85 – 0.1 – 8.3 65,000/
      52,000      		 – 480/
      390      		 2,900/
      2,600      		 40,000/
      32,000      		 2,900/
      2,600      		 – 7.90/
      7.30      		 58/55 63/50 66000 – 2300 – 21500
      G11 1.8 112 0.2 – – 68,100/
      61,300      		 40000 – 3,000/
      2,700      		 43,000/
      37,000      		 3,000/
      2,700      		 – 12.0/
      9.0      		 – – 72500 – 1900 – 22000
      S/T 1.54 95 – 1.94 – 36,700/
      17,500      		 29,200/
      15,500      		 – – 25,600/
      9,700      		 – – 22.90/
      7.30      		 – – 40700 – 2400 – –
      X 1.4 90 – 0.58 – 34,000/
      28,000      		 – – 1,900/
      1,400      		 17,000/
      13,000      		 1,900/
      1,400      		 – 0.82/
      0.76      		 – – 35000 – 1000 – 15000
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    • Thermal
      Temperature Index (°C) Tg by DMA (°C) Coefficient of Thermal Expansion (“/”°Cx10^-6) Flammability Rating (Class) Flammability Vertical (Class)
      Test UL Bulletin 746b Electrical/Mechanical Condition A IPC-TM 650-2.4.24 X-axis/Y-axis UL Bulletin 94 Condition A IEC60893-2/7.2 Condition A
      Units °C °C “/”°Cx10^-6 Class Class
      223 125 – – HB –
      C 115/125 – 20.0/22.0 HB –
      CE 115/125 – 20/22 HB –
      CG 125 – 18/24 HB –
      HDA 125 – 19.5/27.6 HB –
      HDM 125 – 26.4/39.4 HB –
      L 115/125 – 18.0/19.0 HB –
      LE 125 – 18.0/19.1 HB –
      G3 140/170 – 15.0/18.0 HB –
      G5 140 – 15.0/18.0 – V-0
      G7 170/220 – – – V-0
      G9 140 – 15.0/18.0 – V-0
      FR4 130/140 130 10.0/13.0 – V-0
      G11 170/180 180 13/15 HB –
      S/T 165 – 27.0/39.8 – –
      X 130/130 – 13.0/17.0 HB –
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    • Electrical
      Breakdown Voltage (kVolts) Electric Strength Insulation Resistance Arc Resistance Comparative Tracking Index Dissipation Factor @ 1 MHz Relative Permittivity @ 1 MHz
      Test ASTM D149 Condition A ASTM D149 Condition D-48/50 ASTM D149 Condition D-336/50 IEC 60893-2/6.1 Condition A ASTM D149 Condition A ASTM D149 Condition D-48/50 IEC 60893-2/6.1 Condition A IEC 60893-2/6.3 Condition E-24/50:D-24/23 ASTM D495 Condition A ASTM D3638 ASTM D150 Condition A ASTM D150 Condition D-24/23 Condition A Condition D-24/23 Condition D-48/50
      Units kVolts kVolts kVolts kV Volts/mil Volts/mil – MΩ sec Volts/mil – – – – –
      223 – – – – – – – – – – – – – – –
      C 20 5 – – 400 150 – – 15 155 – – – – –
      CE 40 3 – – 550 300 – – 15 – – – – – –
      CG – – – – – – – – – – – – – – –
      HDA – – – – – – – – – – – – – – –
      HDM – – – – – – – – – – – – – – –
      L 45 2 – – 575 450 – – 15 170 – 0.07 – 5.8 –
      LE 50 5 – – 625 500 – – 15 170 – 0.065 – 5.5 –
      G3 55 40 – – 600 580 – – 100 150 – – – – –
      G5 70 65 – – 540 550 – – 185 600 – 7.03 – – –
      G7 55 32 – – 350 – – – 200 – 0.018 0.045 4.55 4.67 –
      G9 70 65 – – 540 550 – – 185 600 – 7.03 – – –
      FR4 66 65 – 65 630 670 25 3.33×10^13 130 600 – 0.032 – 4.8 –
      G11 60 55 – – 700 720 – – 120 150 – 0.02 – – 4.8
      S/T – – – – – – – – – – – – – – –
      X 40 – – – 600 – – – 90 – – – – – –
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    Compare Materials Clear
  • Tube Only
    • Material
      Grade Substrate Resin Modifier Mil Spec NEMA Form Applications
      C Canvas Phenolic – MILI-24768/
      16FBM      		 C Tube Mechanical grade, gears, pinions, spacers,
      structural, bearings, bushings,
      wear parts, electrical insulation.
      CG Canvas Phenolic Graphite – – Tube Mechanical grade, bearings, bushings,
      wear parts where self lubrication and
      low coefficient of friction is necessary.
      HDA Canvas Phenolic Alumina – – Tube Heavy industrial applications for bearings,
      bushings and wear parts that encounter high energy loads as the material possesses improved impact resistance and
      does not fatigue from repeated shock loads.
      HDM Canvas Phenolic Molybdenum Disulfide – – Tube Heavy industrial applications for bearings,
      bushings and wear parts that encounter high energy loads as the material possesses improved impact resistance and
      does not fatigue from repeated shock loads.
      Moly has been added to provide self lubricating properties.
      LE Linen Epoxy – MIL-I-24768/
      13FBE      		 LE Tube Electrical/mechanical grade, marine relay bases,
      terminal bases & strips, radio parts,
      high humidity applications, electrical insulation
      G3 Fiberglass Phenolic – MIL-I-24768/18 G3 Tube Mechanical grade, high temperature, low moisture absorbtion,
      gaskets, seals, structural, industrial wear parts
      G5 Fiberglass Melamine – MIL-I-24768/
      8GMG      		 G5 Tube Electrical/Mechanical grade, switch board panels,
      arc barriers, circuit breaker parts,
      structural & electrical parts, electrical insulation
      G7 Fiberglass Silicone – MIL-I-24768/18 G7 Tube Electrical grade, class H insulation,
      heating/appliance insulation, electrical insulation.
      G9 Fiberglass Melamine – MIL-I-24768/
      1GME      		 G9 Tube Electrical/Mechanical Grade, marine switch board panels,
      structural parts, electrical insulation.
      G10 Fiberglass Epoxy – MIL-I-24768-2 G10 Tube Electrical/Mechanical grade, terminal boards,
      high humidity applications, UL listed a 65M38 unclad,
      electrical insulation, foil lined material used in cryogenic insulation.
      S/T Aramid Phenolic Molybdenum Disulfide – – Tube Mechanical grade, high temperature,
      self lubricating bearings, bushings, wear parts.
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    • Physical
      Specific Gravity Rockwell Hardness Moisture Absorption Flexural Strength Flexural Modulus Tensile Strength Izod Impact Strength Charpy Impact Strength Compressive Strength Compressive Modulus Bonding Strength Shear Strength
      Test ASTM D792 ASTM D785 .250″ build up ASTM D570 Condition A ASTM D570 Condition D1-24/23 IEC 60893-2/8.2 Condition A ASTM D790 Condition A, LW/CW ASTM D790 Condition E-1/150: T-150, LW/CW IEC 60893-2.5.1 Condition A, LW/CW ASTM D790 Condition A, LW/CW ASTM D638 Condition A, LW/CW ASTM D256 Condition A, LW/CW ASTM D256 Condition E-48/50, LW/CW IEC 60893-2.5.4.3 Condition A, LW/CW IEC 60893-2.5.4.2 Condition A LW/CW ASTM D695 Condition A, Flatwise ASTMD695 Condition A ASTM D229 Condition A ASTM D229 Condition D-48/50 ASTM D732 Condition A, Perpendicular
      Units – M Scale % % mg psi psi – kpsi psi ft-lb/in ft-lb/in – kJ/m2 psi kpsi lb lb psi
      C 1.30 90 2.00 – – – – – – 7,700 – – – – 25,500 350 – – –
      CG 1.28 90 2.10 – – – – – – 7,900 – – – – 24,000 415 – – –
      HDA 1.33 74 1.10 – – – – – – 4,100 – – – – 22,000 360 – – –
      HDM 1.34 80 1.30 – – – – – – 5,500 – – – – 18,500 350 – – –
      LE 1.33 110 – 1.15 – – – – – 10,000 – – – – 30,000 380 – – –
      G3 1.80 105 – 0.2 – – – – – 38,500 – – – – 38,000 850 – – –
      G5 1.88 120 – 0.8 – – – – – 27,000 – – – – 26,500 1,000 – – –
      G7 1.93 95 – 0.1 – – – – – 23,500 – – – – 12,000 290 – – –
      G9 1.95 115 – 1.0 – – – – – 26,500 – – – – 33,500 1,000 – – –
      G10 1.80 110 – 0.14 – – – – – 39,500 – – – – 42,500 1,100 – – –
      S/T 1.35 70 1.10 – – 11,000/8,700 – – 750/500 7,400 – – – – 20,000/30,000 600/440 – – –
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    • Thermal
      Temperature Index (°C) Tg by DMA (°C) Coefficient of Thermal Expansion (“/”°Cx10^-6) Flammability Rating (Class) Flammability Vertical (Class)
      Test UL Bulletin 746b Electrical/Mechanical Condition A IPC-TM 650-2.4.24 X-axis/Y-axis UL Bulletin 94 Condition A IEC60893-2/7.2 Condition A
      Units °C °C “/”°Cx10^-6 Class Class
      C 140/140 – – HB –
      CG 140 – – HB –
      HDA 140 – – HB –
      HDM 140 – – HB –
      LE 135 – – HB –
      G3 180/160 – – HB –
      G5 150 – – V-0 –
      G7 170/220 – – V-0 –
      G9 150 – – V-0 –
      G10 200 ≥170 – HB –
      S/T 165 – – – –
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
    • Electrical
      Breakdown Voltage (kVolts) Electric Strength Insulation Resistance Arc Resistance Comparative Tracking Index Dissipation Factor @ 1 MHz Relative Permittivity @ 1 MHz
      Test ASTM D149 Condition A ASTM D149 Condition D-48/50 ASTM D149 Condition D-336/50 IEC 60893-2/6.1 Condition A ASTM D149 Condition A ASTM D149 Condition D-48/50 IEC 60893-2/6.1 Condition A IEC 60893-2/6.3 Condition E-24/50:D-24/23 ASTM D495 Condition A ASTM D3638 ASTM D150 Condition A ASTM D150 Condition D-24/23 Condition A Condition D-24/23 Condition D-48/50
      Units kVolts kVolts kVolts kV Volts/mil Volts/mil – MΩ sec Volts/mil – – – – –
      C – – – – 135 – – – – – – – – – –
      CG – – – – – – – – – – – – – – –
      HDA – – – – – – – – – – – – – – –
      HDM – – – – – – – – – – – – – – –
      LE – – – – 285 220 – – – – – – – – –
      G3 – – – – 400 350 – – – – – – – – –
      G5 – – – – 315 315 – – – – – – – – –
      G7 – – – – 185 120 – – – – – – – – –
      G9 55 30 50 – 350 340 – – – – – – – – –
      G10 60 65 – – 400 380 – – – – 0.024 0.034 4.39 – 4.46
      S/T – – – – – – – – – – – – – – –
      This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. Data supplied is “typical values” and not to be considered “specification values.” In order to assure that the material’s performance is adequate for a specific application, it is recommended that customers independantly verify characteristics of interest.
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