Polyoxymethylene Homopolymer (POMH)

Alternative and trade names
Delrin®, Tenac™, Hostaform®, Ultraform®,TECACOMP®

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Description

It is the ideal material in parts designed to replace metal. It combines low-friction and high-wear resistance with the high strength and stiffness such applications require. It provides a wide operating temperature range (-40 °C to 120 °C) and good colorability. It also mates well with metals and other polymers and offers excellent dimensional stability in high precision molding. Its key features include:

High fatigue resistance

High creep resistance

High toughness

High tensile strength and stiffness

Enables thinner, lighter part design

Offers potential for reducing part production costs

This material data has been provided by M-Base.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

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Properties

General

Property	Value
Density	1.4 - 1.42 g/cm³ Show Material materials with Density of 1.4 - 1.42 g/cm³

Mechanical

Property	Value	Comment
Elastic modulus	2.9 - 3.4 GPa Show Material materials with Elastic modulus of 2.9 - 3.4 GPa
Elongation	25.0 - 80.0 % Show Material materials with Elongation of 25.0 - 80.0 %
Impact strength, Charpy notched	6.0 - 14.0 kJ/m² Show Material materials with Impact strength, Charpy notched of 6.0 - 14.0 kJ/m²
Impact strength, Charpy unnotched	100 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 100 kJ/m²
Tensile strength	55.0 - 75.0 MPa Show Material materials with Tensile strength of 55.0 - 75.0 MPa	at 10-25% strain

Thermal

Property	Value
Coefficient of thermal expansion	0.0001 - 0.00013 1/K Show Material materials with Coefficient of thermal expansion of 0.0001 - 0.00013 1/K
Melting point	165.0 - 178.0 °C Show Material materials with Melting point of 165.0 - 178.0 °C
Specific heat capacity	1460 J/(kg·K) Show Material materials with Specific heat capacity of 1460 J/(kg·K)
Thermal conductivity	0.22 - 0.3 W/(m·K) Show Material materials with Thermal conductivity of 0.22 - 0.3 W/(m·K)
Flammability	UL 94 HB

Electrical

Property	Value
Dielectric constant	3.3 [-] Show Material materials with Dielectric constant of 3.3 [-]
	4.2 [-] Show Material materials with Dielectric constant of 4.2 [-]
Electrical resistivity	1000000000000.0 - 10000000000000.0 Ω·m Show Material materials with Electrical resistivity of 1000000000000.0 - 10000000000000.0 Ω·m

Optical

Property	Value
Transparency	no

Technological properties

Property

Application areas

Gear wheels, dampers in washing machines, airbags, door handles, ball sockets

Other

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Processing methods

Injection molding, extrusion

Polyoxymethylene Homopolymer (POMH)

Description

Ashby charts

Applications

Suggested reading

Properties