Plastic Properties

General ASTM Method Acetal (Polyoxymethylene) Acrylic (Polymethyl Methacrylate) Nylon (Polyamide) Polyamide-imide Polycarbonate HD Polyethylene LD Polyethylene Polypropylene Polystyrene Polycarbonate Polytetrafluoroethylene
Specific Gravity D792 1.42 1.19 1.14 1.38 1.2 0.96 0.91 0.902 1.05 1.2 2.14 - 2.24

Water Absorption (method A, 24hr)%

D570 0.25 0.3 1.2 - 0.15     0.2 - 0.15 0.01
Tensile Strength
at Yield, 1000 psi
D638 10 10.5 12 27.8 9 4.2 1.35 5.07 7.5 8-9.5 2.5-6
Compressive Strength
at Yield, 1000 psi
D695 5.2 17 - 32.1 12.5 - - - - 11 -
Rockwell Hardness
(Method A)
D785 M94
R120
M96 R121
R108
E86 M70
R118
- - 99 M75 M70
R118
D50-D65

 

Thermal & Electrical

 
General ASTM Method Acetal (Polyoxymethylene) Acrylic (Polymethyl Methacrylate) Nylon (Polyamide) Polyamide-imide Polycarbonate HD Polyethylene LD Polyethylene Polypropylene Polystyrene Polycarbonate Polytetrafluoroethylene
Deflection Temperature, °F D648 - - -   - - - 212      
At 66 psi
Fiber Stress
  342 201 455 - 280       200    
At 264 ps
Fiber Stress
  277 199 194 532 270 - -        

Max. Recommended Service Temp., °F

    180 185 450 240 - - - -   550*(288)
Coeff. of Linear Thermal Expansion, °F D696 5.8E-5 3.5E-5 4.9E-9 17E-6 3.8E-5 - -       5.5 x 105

 

Characteristics

 
General ASTM Method Acetal (Polyoxymethylene) Acrylic (Polymethyl Methacrylate) Nylon (Polyamide) Polyamide-imide Polycarbonate HD Polyethylene LD Polyethylene Polypropylene Polystyrene Polycarbonate Polytetrafluoroethylene
Abbreviation - POM PMMA PA PAI PC HDPE LDPE PP PS PC PTFE
Trademark®   Celcon®, Delrin® Plexiglas™ Zytel® Torlon® Lexan®     Pro-Fax®   Lexan® Teflon®
Manufacturers
*Equivalents may be used unless specific trademarked material is specified by customer
  Ticona, Dupont Altuglas Dupont Solvay SABIC Chevron Phillips Dow Lyondellbasell Ineos Nova SABIC Dupont
FDA Compliant Material   YES YES YES         YES YES   YES (virgin)
Natural Color:
Polished
Unpolished
 
White
White

Clear
Frosted

Off White
Off White

Green
Green

Clear with
Cloudy Yellow Tint

Off White
Off White

Off White
Off White

White
Frosted

Clear
Frosted

Clear with
Cloudy Yellow Tint

White
white
Process   Injection Injection Injection Injection Injection Injection Injection Injection Injection Extruded Extruded
    Molded Molded Molded Molded Molded Molded Molded Molded Molded Rod Rod
Common Applications   Casters
Check Balls
Drawer glides
Marine Hardware
Seat Tracks
Seatbelt Retraction
Finger Pumps
Spray Pumps
Trigger Sprayers
Cosmetic
Jewelry
Toys
Beads
Drawer glide Casters
Check Balls
Drawer glides
Marine Hardware
Sailboat blocks
Sailboat pulleys
Seat Tracks
Seatbelt Retraction
Bearing Medical Device   Check Valves
Games
Plug Balls
Medical Device
Beads
Dosing Caps
Enzyme Immunoassay (EIA)
Radioimmunoassay (RIA)
Medical Diagnostic
Medical Device
Bearing Check Balls
Medical Device

 

Grade Specifications 

 
Solid Plastic Ball Grades Size Range (Inches) Tolerance (Inches) Sphericity (Inches) Surface Finish
Grade 0* 2mm - 1" +/-0.0005" 0.0005" Polished
Grade I 2mm - 1 1/2" +/-0.0010" 0.0005" Polished
Grade IIP 2mm - 2" +/-0.0020" 0.0010" Polished
Grade II 2mm - 2" +/-0.0020" 0.0010" As Ground
Grade III 2mm - 5" +/-0.0050" 0.0050" As Ground
*only available in certain materials

 

Disclaimer information is provided for comparison purposes only and not to be used as a recommendation for any engineered product.

Engineering Assistance Available
Phone: 906-632-7310
 

Please note that the material information provided on our website is for informational purposes only. The properties listed per product type are typical and can vary based on suppliers of raw materials and customer specific needs. Please contact customer service for verification prior to ordering. Price and delivery may be subject to change based on specific requirements.

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