delrin temperature range

Welcome to our article on Delrin, a versatile engineering thermoplastic that offers various benefits and applications. In this section, we will provide insights into the optimal temperature range for Delrin, also known as POM-H.

Delrin is widely used in industries such as automotive, consumer electronics, and medical devices due to its outstanding dimensional stability, low friction, and high rigidity. One of its key features is its broad operating temperature range of -40 to 120 ℃.

This temperature range makes Delrin suitable for a wide array of applications, as it can withstand both low and high temperatures. Whether you are working on a project that requires parts to function in extreme cold or hot environments, Delrin can deliver reliable performance.

Throughout this article, we will delve deeper into the properties, benefits, applications, and mechanical qualities of Delrin. We will also explore the differences between Delrin and its counterpart, POM-C (also known as acetal).

Now, let’s move on to the next section and gain a better understanding of the properties and benefits of Delrin.

Understanding Delrin Properties and Benefits

Delrin, also known as POM-H (homopolymer acetal), offers a range of exceptional properties that make it a preferred choice for various applications. Let’s explore the key properties and benefits of Delrin:

Mechanical Stability

Delrin provides exceptional stability in terms of both dimensions and shape, making it an ideal material for precise parts. Whether you’re molding, machining, or printing Delrin, you can trust it to maintain its intended form and size, ensuring accurate and reliable performance.

High Machinability

One of Delrin’s standout features is its high machinability. Its excellent machineability allows for smooth and efficient processing, resulting in precise, high-quality parts. Delrin’s ability to be easily machined reduces production time and costs while maintaining exceptional precision.

Strength and Stiffness

Delrin exhibits great strength and stiffness, making it suitable for parts that need to withstand heavy loads or require structural integrity. Its robust mechanical properties contribute to the durability and longevity of Delrin parts.

Thermal Properties

Delrin showcases excellent resistance to heat, enabling it to perform well in a wide range of operating temperatures. Its thermal properties allow for reliable performance even in harsh environments where temperature fluctuations are common.

Chemical Resistance

In addition to its thermal resistance, Delrin also demonstrates excellent resistance to chemicals. This property makes Delrin a suitable choice for applications that involve exposure to various chemicals or solvents, ensuring the long-term integrity of the part.

Attractive Appearance

Delrin has a shiny exterior and features an opaque white tone in its natural form, giving it an attractive appearance. Its aesthetic appeal makes it an excellent choice for visible or consumer-facing parts.

delrin properties

Property Value
Thermal Conductivity 0.22-0.35 W/mK
Melting Point 171-184°C
Tensile Strength 60-89.6 MPa
Yield Strength 48.6-72.4 MPa
Elastic Modulus 2.5-4 GPa
Elongation at Break 15%-75%

Exploring Delrin Applications

Delrin, a versatile thermoplastic material, finds extensive applications in various industries. Its exceptional properties and unique characteristics make it a preferred choice for diverse engineering needs. Let’s delve into some of the prominent applications and uses of Delrin.

Automotive and Consumer Electronics

In the automotive industry, Delrin is widely employed in high-performance applications. It is often used to manufacture gear wheels, housings, screws, nuts, and pump components. The material’s exceptional strength, durability, and low friction properties make it ideal for these demanding applications. Likewise, consumer electronics benefit from Delrin’s attributes, utilizing it in components such as connectors, electronic parts, coverings, and insulators.

Electrical Engineering

Delrin plays a vital role in electrical engineering applications due to its excellent insulation properties. Connectors, switchgear components, and insulators are often made from Delrin to ensure reliable electrical connections and insulation. The material’s ability to withstand high temperatures and resist chemicals is critical in electrical systems where safety and performance are paramount.

Medical Devices and Equipment

Delrin’s biocompatibility and durability make it a valuable material in the medical field. It is used in the production of insulin pens, metered-dose inhalers, and various medical device components. Ensuring high precision and reliability, Delrin contributes to the safe and effective operation of medical equipment.

These are just a few examples of Delrin applications. Its versatility allows it to replace metal in numerous industries, providing cost-effective solutions without compromising on performance. The table below summarizes the main applications of Delrin:

Industry Main Applications of Delrin
Automotive Gear wheels, housings, screws, nuts, pump components
Consumer Electronics Connectors, electronic parts, coverings, insulators
Electrical Engineering Switchgear components, connectors, insulators
Medical Insulin pens, metered-dose inhalers, medical device components

Delrin Applications

Delrin’s wide-ranging applications in various industries highlight its versatility and reliability. Its exceptional properties, combined with the ability to withstand harsh environments, make it an invaluable material in engineering and manufacturing processes.

Material and Mechanical Properties of Delrin

Delrin, also known as POM-H (homopolymer acetal), possesses unique material and mechanical properties that contribute to its outstanding performance in a variety of applications. Here, we delve into the critical properties of Delrin, including its melting point and thermal conductivity, as well as its tensile strength and elasticity.

Melting Point: Delrin has a melting point ranging from 171 to 184 °C, enabling it to withstand high-temperature environments. This characteristic makes Delrin suitable for applications that require exceptional heat resistance and stability.

Thermal Conductivity: With a thermal conductivity ranging from 0.22 to 0.35 W/mK, Delrin efficiently transfers heat, contributing to its ability to withstand temperature variations and maintain dimensional stability. This property makes Delrin ideal for applications in industries such as automotive, electronics, and manufacturing where heat dissipation is crucial.

Tensile Strength: Delrin exhibits excellent tensile strength, ensuring the material can withstand substantial loads without deformation or breakage. It features a rupture strength of 60-89.6 MPa and a yield strength of 48.6-72.4 MPa, making it an optimal choice for applications that require durability and reliability.

Elastic Modulus: The elastic modulus of Delrin ranges between 2.5 and 4 GPa. This attribute contributes to the material’s exceptional rigidity and stability, allowing it to maintain its shape and dimensions even under significant stress or pressure.

High Elongation at Break: Delrin exhibits high elongation at break, ranging from 15% to 75%. This property ensures the material can undergo substantial deformation before reaching its breaking point, making it suitable for applications that require flexibility and resilience.

By comprehending the material and mechanical properties of Delrin, manufacturers and engineers can make informed decisions about its utilization in various processes like CNC machining, injection molding, or 3D printing. Now, let us take a closer look at the assembly and finishing techniques commonly employed for Delrin parts in the subsequent section.

delrin material properties image

Assembly and Finishing of Delrin Parts

When it comes to assembling Delrin parts, there are several methods that can be employed to ensure a secure and reliable connection. Common assembly techniques for Delrin parts include:

  • Self-tapping screws: These screws provide a strong grip and are easy to install, making them a popular choice for assembling Delrin parts.
  • Snap-fits: Snap-fits are a convenient method for joining Delrin parts together without the need for additional fasteners.
  • Press-fits: Press-fitting involves inserting one Delrin part into another with an interference fit, creating a sturdy connection.

For permanent assembly, welding, adhesives, and riveting are commonly used techniques. These methods provide a strong and lasting bond between Delrin parts, ensuring their structural integrity.

Finishing Delrin parts involves surface modifications that enhance their appearance and performance. Some common finishing techniques for Delrin include:

  • Hot stamping: Hot stamping can add logos, text, or other designs to Delrin parts, creating a visually appealing finish.
  • Silk screen printing: Silk screen printing allows for precise and detailed designs to be printed on Delrin parts.
  • Painting: Delrin parts can be painted to achieve a desired color or finish, providing greater customization options.
  • Laser marking: Laser marking can create permanent marks on Delrin parts, such as serial numbers or product identifiers.
  • Metalizing: Metalizing involves applying a thin layer of metal to the surface of Delrin parts, enhancing their appearance and durability.
  • Pad printing: Pad printing is a versatile method that allows for precise and consistent printing on complex-shaped Delrin parts.

Additionally, surface treatments like bead blasting can be employed to provide a uniform appearance and improve the durability of Delrin parts. Delrin parts can also be pretreated for specific applications, such as improving adhesive bonding or enhancing surface conductivity.

delrin assembly

Difference Between Delrin and Acetal

Delrin and acetal are both types of POM (polyoxymethylene) materials used in various applications. While they share similarities, there are key differences between them that make each suitable for specific use cases.

Melting Points

One significant difference between Delrin (POM-H) and acetal (POM-C) is their melting points. Delrin has a slightly higher melting point, ranging from 171 to 184 °C, while acetal melts at temperatures between 160 and 175 °C.

Mechanical and Physical Properties

Delrin, or POM-H, offers better mechanical and physical properties compared to acetal (POM-C). It exhibits high abrasion resistance, making it suitable for applications that require durability and low friction coefficient. In contrast, acetal is easier to process and performs well in low-friction applications.

Here’s a comparison table showcasing the differences between Delrin and acetal:

Property Delrin (POM-H) Acetal (POM-C)
Melting Point 171-184 °C 160-175 °C
Mechanical Strength High Lower compared to Delrin
Physical Properties High abrasion resistance Easier to process, performs well in low-friction applications


Delrin, an engineering thermoplastic with a temperature range of -40 to 120 ℃, offers exceptional stability and reliability for precise parts. Its outstanding resistance to heat and chemicals make it an excellent choice for various applications. With its high strength, stiffness, and durability, Delrin finds extensive use in industries such as automotive, consumer electronics, and medical devices.

By understanding the properties and benefits of Delrin, manufacturers can confidently incorporate it into their CNC machining, injection molding, or 3D printing processes. Its temperature stability and resistance allow for consistent performance in demanding environments. Whether it’s creating gear wheels, housings, or electrical engineering components, Delrin proves to be a versatile solution.

From its excellent dimensional stability to its attractive appearance, Delrin offers a multitude of advantages. Its ability to replace metal parts plays a significant role in reducing weight and manufacturing costs. Furthermore, Delrin’s impressive combination of properties results in long-lasting, high-quality products that meet the stringent requirements of various industries.


What is the optimal temperature range for Delrin?

Delrin has a broad operating temperature range of -40 to 120 ℃, making it suitable for a wide range of applications.

What are the main properties and benefits of Delrin?

Delrin offers low friction, high rigidity, outstanding dimensional stability, and excellent resistance to heat and chemicals. It is also highly machinable and reliable.

Where can Delrin be used?

Delrin is commonly used in industries such as automotive, consumer electronics, and medical devices. It is used for gear wheels, housings, screws, nuts, pump components, electrical engineering components, connectors, electronic parts, coverings, insulators, and medical devices.

What are the material and mechanical properties of Delrin?

Delrin has a melting point ranging from 171 to 184 °C, thermal conductivity ranging from 0.22 to 0.35 W/mK, tensile strength of 60-89.6 MPa, yield strength of 48.6-72.4 MPa, elastic modulus between 2.5 and 4 GPa, and high elongation at break ranging from 15% to 75%.

How can Delrin parts be assembled and finished?

Delrin parts can be assembled using self-tapping screws, snap-fits, press-fits, welding, adhesives, and riveting. They can be finished with surface modifications such as hot stamping, silk screen printing, painting, laser marking, metalizing, and pad printing. Surface treatments like bead blasting can also be applied.

What is the difference between Delrin and Acetal?

Delrin, also known as POM-H, has a higher melting point ranging from 171 to 184 °C compared to POM-C (acetal) which melts between 160 and 175 °C. Delrin has better mechanical and physical properties, while POM-C is easier to process and performs well in low-friction applications.

What makes Delrin temperature-stable and resistant?

Delrin’s exceptional stability in dimensions and shape, as well as its resistance to heat and chemicals, make it a reliable choice for applications in various industries.

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