Tamshell
Material Data Sheet

Material: Acetron GP

Polyoxymethlene

Acetron GP is Quadrant's general purpose copolymer acetal and is the only porosity-free product available today. Investments in process technology by Quadrant now provide the performance and machinability of acetal without center core porosity. Our in-line photometric quality procedure assures every plate and rod is porosity-free making it the preferred acetal for food contact and medical applications. Acetron GP natural and black are FDA, USDA, NSF, Canada AG and 3A-Dairy Compliant.

Mechanical Properties Value Units



Specific Gravity, 73°F 1.41
Tensile Strength, 73°F 9,500 psi
Tensile Modulus of Elasticity, °F 400,000 psi
Tensile Elongation ( at break), 73°F 30 %
Flexural Strength, 73°F 12,000 psi
Flexural Modulus of Elasticity, 73°F 400,000 psi
Shear Strength, 73°F 8,000 psi
Compressive Strength, 10% Deformation, 73°F 15,000 psi
Compressive Modulus of Elasticity, 73°F 4,000,000 psi
Hardness, Rockwell, Scale as noted, 73°F M88
Hardness, Durometer, Shore "D" Scale, 73°F D85
Izod Impact (notched), 73°F 1 ft-lb/in of notch
Coefficient of Friction (Dry vs. Steel) Dynamic 0.25
Limiting PV (with 4:1 safety factor applied) 2,700 ft.lbs./in.2 min
Wear Factor "k" x 10-10 200 in.3-min/ft.lbs.hr



Thermal Properties




Coefficient of Linear Thermal Expansion (-40°F to 300°F) 4.7 x 10-5 in/in./°F
Heat Deflection Temperature 264 psi 250 °F
TG-Glass transition (amorphous) N/A °F
Meltin Point (Crystalline) peak 335 °F
Continuous Service Temperature in Air (Max.) (1) 180 °F
Thermal Conductivity 1.6 BTU-in/hr-ft²-°F



Electrical Properties




Dielectric Strength, Short Term 420 Volts/mil
Surface Resistivity >1013 ohm/square
Dielectric Constant, 106 Hz 3.8
Dissipation Factor, 106 Hz 0.01
Flammability @ 3.1 mm (1/8 in.) HB
     
*The values shown in these and the following charts are typical, average properties. Actual values may differ due to variations in resin formulations and processing methods. These values are obtained from sources believed to be reliable, including the resin manufactures, converters and other published sources. However, they should not be used for specification or design purposes.
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