| 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/in³ | 0.0507 | ||
| Specific Volume | in³/lb | 19.7 | ||
| Rockwell Hardness | M scale | ASTM D785 | 80 | |
| Mechanical | Units | Test Method | Data | |
| Tensile Strength at Yield @ -40°F | lbs/in² | ASTM D638 (Speed B) | 13,700 | |
| Tensile Strength at Yield @ 73°F | lbs/in² | ASTM D638 (Speed B) | 8,800 | |
| Tensile Strength at Yield @ 160°F | lbs/in² | ASTM D638 (Speed B) | 5,000 | |
| Elongation at Break @ -40°F | % | ASTM D638 (Speed B) | 20 | |
| Elongation at Break @ 73°F | % | ASTM D638 (Speed B) | 60 | |
| Elongation at Break @ 160°F | % | ASTM D638 (Speed B) | >250 | |
| Tensile Modulus | psi | ASTM D638 | 410,000 | |
| Flexural Modulus @ 73°F | lbs/in² | ASTM D790 | 375,000 | |
| Flexural Modulus @ 160°F | lbs/in² | ASTM D790 | 180,000 | |
| Flexural Modulus @ 220°F | lbs/in² | ASTM D790 | 100,000 | |
| Flexural Stress at 5% Deformation | lbs/in² | ASTM D790 | 13,000 | |
| Compressive Stress @ 1% Deflection | lbs/in² | ASTM D695 | 4,500 | |
| Compressive Stress @ 10% Deflection | lbs/in² | ASTM D695 | 16,000 | |
| Shear Strength @ 73°F | lbs/in² | ASTM D732 | 7,700 | |
| Shear Strength @ 120°F | lbs/in² | ASTM D732 | 6,700 | |
| Shear Strength @ 160°F | lbs/in² | ASTM D732 | 5,700 | |
| Impact | Units | Test Method | Data | |
| Izod Impact Strength (Notched) @ -40°F | ft-lb/in. notch | ASTM D256 | 1.0 | |
| Izod Impact Strength (Notched) @ 73°F | ft-lb/in. notch | ASTM D256 | 1.3 | |
| Tensile Impact Strength | ft-lb/in² | 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 | ||