Swamp Dawg would you know anything about U.H.M.W. polyethylene ?? I can get it in a 3" thick roll. They tell me it's tougher than steel. Think it's any good for bushings instead of brass ?? I have to start watching my budget. Ha Ha Ha. I have posted a spec sheet below.
UHMW polyethylene is an outstanding choice in material when you need a relatively low cost abrasion, impact, and chemical resistant material. UHMW is used in extreme wear situations such as hopper liners, conveyer systems, marine fender pads, and sand and gravel movement. UHMW is not uv stabilized and will have a shortened life if used outdoors.
Property Units UHMW
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Water Absorption (Saturation) % NIL
Tensile Strength (73 F) PSI 2,600
Flexural Strength (73 F) PSI -
Compressive Strength (10% Deflection) PSI -
Shear Strength (73 F) PSI -
Impact Strength, Notched Izod (73 F) Ft-Lbs/In. 19-34
Elongation at Break (73 F) % 50-250
Tensile Modulus of Elasticity (73 F) PSI 101,500
Flexural Modulus of Elasticity (73 F) PSI 102,000
Hardness - Rockwell & Burnell (73 F) Various Scales R68
Density Lbs/In
Coefficient of Friction (Dynamic) None 0.16
Wear Factor (K) in. -min/Ft-Lbs-Hr -
Limiting PV PSI/FPM -
Abrasion Resistance Index None
Coefficient of Linear Thermal Expansion In./In./F 1.1 x 10-4
Continuous Service Temperature - in Air (max.) F 180
Deflection Temperature (264 PSI) F -
Melting Point F 278
Deformation Under Load (2000 PSI, 122 F) % -
Dielectric Strength Volts/Mil 2,300
Volume Resistively Ohm-CM -
Dielectric Constant (1 kHz) None -
Dielectric Constant (1 MHz) None -
Dielectric Constant (60 Hz) None -
Specific Gravity None 0.94
Coefficient of Linear Thermal Expansion (-40 F to 300 F) (E-831) None 1.1 x 10-4
Heat Deflection Temperature @ 264 psi (D648) F
Vicat Softening Point (D1525) F