Properties

Physical Properties | Thermal Properties | Electrical Properties | Chemical Resistance

Physical Properties

The physical properties of CIP Composites make it an excellent wear and bearing material. As a general guide, this 100% bearing material is best suited for high load, high impact and slow rotating applications. CIP Composite bearings and wear pads are great replacements for your current bronze, nylon, urethane and rubber applications.

Physical Properties (based on CIP 100 sheet material)
Compressive Stength (ASTM D695)
          Ultimate 50,000 PSI 345 MPa
          Yield 15,000 PSI 130 MPa
          Parallel 13,500 PSI 93 MPa
          Modulus 500,000 PSI 3,447 MPa
Tensile Strength (ASTM D638) 11,000 PSI 75 MPa
Tensile Modulus of Elasticity (ASTM D638) 470,000 PSI 3,240 MPa
Poisson’s Ratio (ASTM D3039-08) 0.231
Shear Strength (ASTM D2344) 12,000 PSI 82 MPa
Flexural Modulus of Elasticity (ASTM D790) 260,000 PSI 1,793 MPa
Hardness Rockwell M (ASTM D785) 100
Density (ASTM D792) 0.047 lbs/in³ 1.3 g/cm³
Water Swell (ASTM D570) <0.15%

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Thermal Properties

CIP Composites are thermal insulators. Under normal circumstances frictional heat is removed via the mating metal surface. The removal of frictional heat may be improved, particularly in dry running applications, by using the housing for additional heat dissipation. The wall thickness of bearings should be kept to a minimum in order to improve heat conduction. However, in cases where shafts or housings are conducting heat to the bearing assembly, a lubricant may be necessary to aid in the removal of heat. Although thermal expansion of CIP Composites is greater than that of most metal alloy bearings; it is consistent, predictable and less than many plastics. Expansion must be taken into account for applications where there will be a temperature change greater than 60°F (15°C), our sales department will provide recommended running clearance.

Thermal Properties (based on CIP 100)
Operating Temperatures -40° to 200° F -40° to 93° C
Coefficient of Thermal Expansion 68° to 200° F 20° to 93° C
Normal to Laminate 3.5×10-5 / Δ° F 6.3×10-5 / Δ° C
Parallel to Laminate 1.8×10-5 / Δ° F 3.24×10-5 / Δ° C
Thermal Properties (based on CIP 200)
Operating Temperatures -40° to 200° F -40° to 93° C
Coefficient of Thermal Expansion 68° to 200° F 20° to 93° C
Normal to Laminate 3.5×10-5 / Δ° F 6.3×10-5 / Δ° C
Parallel to Laminate 1.8×10-5 / Δ° F 3.24×10-5 / Δ° C
Thermal Properties (based on CIP 300)
Operating Temperatures -40° to 400° F -40° to 204° C
Coefficient of Thermal Expansion 68° to 400° F 20° to 204° C
Normal to Laminate 4.0×10-5 / Δ° F 7.2×10-5 / Δ° C
Parallel to Laminate 2.0×10-5 / Δ° F 3.6×10-5 / Δ° C

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Electrical Properties

Certain grades of CIP Composites are excellent insulating materials and may be used in a number of different electrical applications. Non-graphite materials offer customers both a non-conducting and non-magnetic composite that does not build up static charges.
Note: If a magnetic material is desired, we can provide options with graphite filled composites.

Electrical Properties (based on CIP 101 sheet material)
Dielectric Strength (ASTM D149-97a) 200 volts/mil
Volume Resistivity (ASTM D257-07) 4.2 x 1015 ohm-cm
Electrical Properties (based on CIP 131 sheet material)
Dielectric Strength (ASTM D149-97a) 240 volts/mil
Volume Resistivity (ASTM D257-07) 1.1 x 1015 ohm-cm
Electrical Properties (based on CIP 151 sheet material)
Dielectric Strength (ASTM D149-97a) 180 volts/mil
Volume Resistivity (ASTM D257-07) 1.7 x 1015 ohm-cm

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Chemical Resistance

CIP Composites do not corrode and are unaffected by many solvents, inorganic solutions, fats and weak acids. It should be noted that water and chemical liquids often act as lubricants on the material. This may enhance the overall performance and eliminate many of the problems commonly encountered with metal bearings. Composites are attacked by ketones, chlorinated solvents, strong alkalis, and hot strong oxidizing agents.

The following chart is based on CIP series 100 materials, we offer materials with better chemical resistance. Please contact us to discuss the chemicals used in your application.

S = Satisfactory
L = Satisfactory for limited service
U = Unsatisfactory
Satisfactory means that the material retains 50% or more of its original dry strength after immersion of at least six months.

Chemical Resistance
68° F / 20° C
120° F / 49° C
68° F / 20° C
120° F / 49° C
Acetic Acid 15/100%
S/U
L/U
Acetone 15/100%
S/U
L/U
Alcohol Ethyl 15/100%
S/S
S/S
Aluminum Sulfate
S
L
Ammonia Aqueous
U
U
Ammonium Carbonate
S
L
Ammonium Nitrate
S
S
Benzene
S
L
Bleach Liquors
S
L
Calcium Chloride
S
S
Carbon Tetrachloride
S
S
Chlorine Water
S
L
Creosote
S
S
Citric Acid
S
S
Ethylene Glycol
S
S
Fatty Acids
S
S
Hydrochloric Acid
S
S
Hydrofluoric Acid
U
U
Maleic Acid
S
S
Naphtha
S
S
Nitric Acid 15/100%
S/U
S/U
Oxalic Acid
S
S
Phosphoric Acid
S
S
Phthalic Anhydride
S
S
Potassium Hydroxide
U
U
Sodium Carbonate 25/100%
S/L
S/U
Sodium Chloride
S
S
Sodium Hydroxide
U
U
Sodium Nitrate
S
S
Sodium Nitrite
S
S
Sulfuric Acid 50/100%
S/U
S/U
Trichloroethylene
U
U

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