ACETAL COPOLYMER/POLYMETHYLENE (POM) COPOLYMER M-90
TICONA CELEANESE CELCON ACETAL
Ticona Celeanese Celcon Acetal Copolymer/Polyoxymethylene (POM) Copolymer M-90
Acetal resins are characterized by there strength, stiffness, and hardness; and are stable over a wide range of temperatures, humidity, environments, and stress. Acetal has high load bearing characteristics, excellent creep resistance, and low coefficient of friction. Acetal absorbs little water, minimizing the effect of moisture on its physical properties. Acetal resists neutral oils, grease, petroleum-based fuels, many organic solvents, and alkalis. Oxidizing agents and acids, organic and inorganic, with PH less than four attack acetals. Compared to nylon; Acetal has better fatigue resistance, creep resistance, stiffness and water resistance, but lower impact strength and abrasion resistance. Acetal is widely used in pluming and irrigation because it resists scale build-up and has excellent thread strength, creep resistance, and torque retention. Acetal is translucent off white in color.
 
APPLICATIONS
Fasteners Bearings Gears Cams Washers Spacers Dowel Pins Actuators
 
Approvals NSF and FDA Approved
 
Properties
Physical Units Test Method Data
Specific Gravity ASTM D792 1.41
Density lbs/in 0.0507
Specific Volume in/lb 19.7
Rockwell Hardness M scale ASTM D785 80
 
Mechanical Units Test Method Data
Tensile Strength at Yield @ -40F lbs/in ASTM D638 (Speed B) 13,700
Tensile Strength at Yield @ 73F lbs/in ASTM D638 (Speed B) 8,800
Tensile Strength at Yield @ 160F lbs/in ASTM D638 (Speed B) 5,000
Elongation at Break @ -40F % ASTM D638 (Speed B) 20
Elongation at Break @ 73F % ASTM D638 (Speed B) 60
Elongation at Break @ 160F % ASTM D638 (Speed B) >250
Tensile Modulus psi ASTM D638 410,000
Flexural Modulus @ 73F lbs/in ASTM D790 375,000
Flexural Modulus @ 160F lbs/in ASTM D790 180,000
Flexural Modulus @ 220F lbs/in ASTM D790 100,000
Flexural Stress at 5% Deformation lbs/in ASTM D790 13,000
Compressive Stress @ 1% Deflection lbs/in ASTM D695 4,500
Compressive Stress @ 10% Deflection lbs/in ASTM D695 16,000
Shear Strength @ 73F lbs/in ASTM D732 7,700
Shear Strength @ 120F lbs/in ASTM D732 6,700
Shear Strength @ 160F lbs/in ASTM D732 5,700
 
Impact Units Test Method Data
Izod Impact Strength (Notched) @ -40F ft-lb/in. notch ASTM D256 1.0
Izod Impact Strength (Notched) @ 73F ft-lb/in. notch ASTM D256 1.3
Tensile Impact Strength ft-lb/in ASTM D1822 70
 
Miscellaneous Units Test Method Data
Water Aborption @ 24 hours Immersion % ASTM D570 0.22
Equilibrium @ 50% RH % 0.16
Equilibrium @ Immersion % 0.80
Taber Abrasion 1000g Load CS-17 Wheel mg/1000 cycles ASTM D1044 14
Coeffiecent of Friction ASTM D1894
     against steel, brass, and aluminum 74 0.15
     against Celcon 74 0.35
 
Thermal Units Test Method Data
Heat Deflection Temperature @ 264 psi F ASTM D648 230
Heat Deflection Temperature @ 66 psi F ASTM D648 316
Flammability UL 94 HB