Basic Properties of UHMW Plastic

ItemDescriptionProduct nameAcetal, Polyoxymethylene, or POM PlasticAvailable colorNature (White), Black, Green, Blue, Red, Yellow, Custom colorDensityFrom 1.41 g/cm3 to 1.5 g/cm3FlammabilityHB/UL94

Mechanical Properties

Mechanical PropertiesTesting MethodUnitValueTensile yield strengthASTM D638psi/MPa9300/64Tensile modulus ElasticityISO 527MPa2600Tensile Elongation (Break)ISO 527%>30Flexural StrengthASTM D790psi/MPa11000/75

Physical PropertiesTesting MethodUnitValueDensityASTM D792g/cc1.41~1.5Water absorption (Dipping in water at 23°C for 24 hours)ASTM D570%16~20

Thermal PropertiesTesting MethodUnitValueCoefficient of Linear Thermal ExpansionAverage value between 23 and 100°Cm/(mk)105x10^-6Heat deflection temperatureISO 752°F/°C230/110Melting temperature°F/°C330/165Max. operating temperature°F/°C180/82

Electrical properties

Electrical PropertiesTesting MethodUnitValueDielectric strengthIEC60243kv/nn>40Dielectric constantIEC6025010^6 Hz3.8Dissipation Factor0.005Volume ResistivityIEC60093ohm (Ω)10^13

Acetal Plastic in all forms

Acetal is also called as Polyoxymethylene(POM) Sheet, Acetal Rod, Acetal Tube, and Machining Service…

Acetal, Polyoxymethylene (POM) You Need To Know

Acetal, also known as polyoxymethylene (POM), polyformaldehyde, and polyacetal, is one of the engineering plastics, its density ranges from 1.41 to 1.5 g/cm³. It is mainly used for precision mechanical components, for example, gears, pulleys, rollers, bearings, housing parts, bushing, cams, valves, seals, gear wheels, and other parts with high stiffness, low friction, and excellent dimensional stability, low thermal expansion because acetal plastic offers high strength, hardness, and rigidity to −40°C.

Changing the ratio between acetal plastic and another material or annexing agent can obtain or enhance some special physical properties, such as higher toughness, flame retardant property, and electrostatic discharge (ESD).

Acetal plastic’s natural color is intrinsically opaque white because of its high crystalline composition, but it can be produced in a variety of colors by adding colorant. Normally, Acetal or POM plastic is supplied in plastic granules and can be formed into the desired shape by heating and pressing. The common forming methods are injection molding and extrusion.

More Information About HDPE Plastic

Specification of Acetal, Polyoxymethylene (POM) Plastic

Grade

Homopolymer
Copolymer
Unfilled
Food grade
Glass Filled
Metal detectable
PTFE filled
Static Dissipative
UV Resistant
Strength Improved
Toughness improved

Profile/Shape

Sheet
Film
Rod
Tube

Color

Nature (White)
Black
Green
Blue
Red
Yellow

Custom Service

Custom profile by extrusion;
Custom part by injection molding;
Custom part by CNC Machining;

Acetal Sheet

Thickness: From 3mm to 200mm
Width: from 650 mm to 1220mm
Length: from 1000 mm to 2440 mm

Acetal Film

Thickness: From 0.3mm to 3mm
Width: Up to 1220 mm

Acetal Rod

Diameter: From 2mm to 350mm
Length: 1000 mm or custom

Acetal Tube

Diameter: From 2.5mm to 1500mm
Length: 1000 mm or custom

Custom Profile

Extrusion process;
Custom profile;
Custom color;

Injection molding part

Custon Shape;
Custom color;

Remark

All sizes can be customized according to the requirements of clients;
Machining services are available;

Properties of Acetal, Polyoxymethylene (POM) plastic

Item	Description
Product name	Acetal, Polyoxymethylene, or POM Plastic
Available color	Nature (White), Black, Green, Blue, Red, Yellow, Custom color
Density	From 1.41 g/cm³ to 1.5 g/cm³
Flammability	HB/UL94

Mechanical Properties	Testing Method	Unit	Value
Tensile yield strength	ASTM D638	psi/MPa	9300/64
Tensile modulus Elasticity	ISO 527	MPa	2600
Tensile Elongation (Break)	ISO 527	%	>30
Flexural Strength	ASTM D790	psi/MPa	11000/75

Physical Properties	Testing Method	Unit	Value
Density	ASTM D792	g/cc	1.41~1.5
Water absorption (Dipping in water at 23°C for 24 hours)	ASTM D570	%	16~20

Thermal Properties	Testing Method	Unit	Value
Coefficient of Linear Thermal Expansion	Average value between 23 and 100°C	m/(mk)	105×10^-6
Heat deflection temperature	ISO 752	°F/°C	230/110
Melting temperature		°F/°C	330/165
Max. operating temperature		°F/°C	180/82

Electrical Properties	Testing Method	Unit	Value
Dielectric strength	IEC60243	kv/nn	>40
Dielectric constant	IEC60250	10^6 Hz	3.8
Dissipation Factor			0.005
Volume Resistivity	IEC60093	ohm (Ω)	10^13

Main Usage of Acetal Plastic

Automotive trim parts
Bearings and bushings
Boat accessories
Electronic component housings
Pump and valve parts
Scraper blade
Rollers and Gears;
Valves and Manifolds
Wear parts;
Industrial parts by injection molding;

Main Feature of Acetal Plastic

Outstanding wear resistance and sliding properties;
Good machinability;
Low water absorption rate and good chemical resistance;
High impact resistance, even at low temperatures;
Good dimensional stability and creep resistance, when machined or worked;
Low moisture absorption;
Excellent electrical properties;
Unfilled grade is FDA compliant;

Industry

Electrical and 3C;
Energy Industry;
Aircraft & Aerospace Industry;
Medical;
Food processing;
Low moisture absorption;
Automobile Industry;

Can’t find what you need? Or Need custom Delrin/Acetal Plastic?

Need A Fast Quotation

Need A Help From UVTECO

Leading Supplier of Acetal, Polyoxymethylene (POM) In China

As one of the leading suppliers of Acetal plastic (POM) in China, UVTECO provides all forms of POM, including glass-filled Acetal, Acetal sheets/rods/tubes, and acetal parts by injection molding and CNC machining.

As an ISO-certified company, UVTECO stocks the frequently-used Acetal sheets/rods/tubes for fast delivery, including natural color, white color, and black color. Meantime, providing high-quality POM-based products and parts/components for more than 2500 clients from more than 45 countries, they are working in automation, automobile industry, medical industry, food industry, aerospace industry, appliance industry, electrical & electronic, etc.