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Mitsubishi Chemical Advanced Materials Acetron® GP Copolymer Acetal, Porosity-Free, Unfilled, Extruded (ASTM datasheet)  (Unverified Data**)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced

Material Notes:

Quadrant Engineering Plastic Products is now Mitsubishi Chemical Advanced Materials.

Key Words: POM, Polyoxymethylene; Polyacetal
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Physical PropertiesOriginal ValueComments
Specific Gravity 1.41 g/ccASTM D792
Water Absorption 0.20 %Immersion, 24hr; ASTM D570(2)
Water Absorption at Saturation 0.90 %Immersion; ASTM D570(2)
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 88ASTM D785
Hardness, Rockwell R 120ASTM D785
Hardness, Shore D 85ASTM D2240
Tensile Strength 9500 psiASTM D638
Elongation at Break 30 %ASTM D638
Tensile Modulus 400 ksiASTM D638
Flexural Strength 12000 psiASTM D790
Flexural Modulus 400 ksiASTM D790
Compressive Strength 13500 psi10% Def.; ASTM D695
Compressive Modulus 260000 psiASTM D695
Shear Strength 8000 psiASTM D732
Izod Impact, Notched 1.00 ft-lb/inASTM D256 Type A
Coefficient of Friction, Dynamic 0.25Dry vs. Steel; QTM55007
K (wear) Factor 200 x 10-10 in³-min/ft-lb-hrQTM 55010
Limiting Pressure Velocity 2700 psi-ft/min4:1 safety factor; QTM 55007
 
Electrical PropertiesOriginal ValueComments
Surface Resistivity per Square >= 1.00e+13 ohmEOS/ESD S11.11
Dielectric Constant 3.8
@Frequency 1e+6 Hz
ASTM D150
Dielectric Strength 420 V/milShort Term; ASTM D149
Dissipation Factor 0.0050
@Frequency 1e+6 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear 54.0 µin/in-°F
@Temperature -40.0 - 149 °C
ASTM E831
Thermal Conductivity 1.60 BTU-in/hr-ft²-°FASTM F433
Melting Point 335 °FCrystalline, Peak; ASTM D3418
Maximum Service Temperature, Air 180 °FLong Term
Deflection Temperature at 1.8 MPa (264 psi) 220 °FASTM D648
Flammability, UL94 HB
@Thickness 3.17 mm
Estimated Rating
 
Compliance PropertiesOriginal ValueComments
3A-Dairy YesNatural and Black Only
FDA Yes
NSF YesSTD 51 & 61 Natural and Black
USDA Yes
USP Class VI No
 
Chemical Resistance PropertiesOriginal ValueComments
Acids, Strong (pH 1-3) Unacceptable
Acids, Weak Limited
Alcohols Acceptable
Alkalies, Strong (pH 11-14) Unacceptable
Alkalies, Weak Acceptable
Chlorinated Solvents Limited
Conductive / Static Dissipative No
Continuous Sunlight Limited
Hot Water / Steam Limited
Hydrocarbons - Aliphatic Acceptable
Hydrocarbons - Aromatic Acceptable
Inorganic Salt Solutions Acceptable
Ketones, Esters Acceptable
 
Descriptive Properties
ColorNatural / Black
Machinability11-10, 1=Easier to Machine

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P1SM00a / 192052

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