HOMOPOLIMERO POLYACETAL | Polyoxymethylene
DELRIN | POM H
Available formats: Bars, Tubes, and Plates
Delrin H (POM-H) is a homopolymer acetal that has exceptional slip properties and good wear resistance. Compared to POM-C, POM-H has a slightly higher density, hardness and strength due to its greater crystallinity.
In addition, POM-H offers good electrical insulation and exceptional machining characteristics, which makes Delrin H acetal one of the most versatile engineering materials currently available.
Applications
When comparing Delrin C and Delrin H, the Delrin or POM-H homopolymer combines greater fatigue and creep resistance with greater overall strength and greater tensile strength and stiffness, allowing for a thinner part design and light, and the potential for lower cost of production of parts.
A fundamental characteristic of DELRIN H is its resistance, it is a rigid, firm and hard material, it has good sliding and friction properties and very good electrical insulation. Other properties include:
- high mechanical strength
- good tribological properties
- electrical insulator
- hard to paste
- good chemical resistance
- good machinability
- easy to polish
- not resistant to hot water above 60ºC
It is used in the following industries:
- Mechanical Engineering
- Food Industry
- electronics
- Aeronautical and aerospace technology
- Automotive
Physical Properties
| Physical Properties | Rule | Units | Values |
|---|---|---|---|
| Specific weight | ISO 1183 | g / cm3 | 1.42 - 1.43 |
| Water absorption upon saturation | ISO 62 | % | 0,5 |
| Moisture absorption at 23 ° C? 50% RH | ISO 62 | % | 0,2 |
| Upper limit of working temperature | - | ºC | 100 |
| Lower limit of working temperature | - | ºC | -50 |
Mechanical properties
| Mechanical properties | Rule | Units | Values |
|---|---|---|---|
| Elastic limit (2) | ISO 527 | MPa | 72 |
| Elongation in performance (2) | ISO 527 | % | 40 |
| Tensile strength until breakage (2) | ISO 527 | MPa | - |
| Elongation to breakage (2) | ISO 527 | % | - |
| Traction Module (2) | ISO 527 | MPa | 3100 |
| Impact resistance without notches | ISO 179 | KJ / mm2 | - |
| Notched Impact Resistance | ISO 179 | KJ / mm2 | 11 |
| Rockwell hardness M | ISO 2039 | N / mm2 | - |
| Shore D hardness | DIN 53505 | ° Shore D | 84 |
| Flexural strength - at 3.5% | ISO 178 | MPa | 89 |
| Flex module | ISO 178 | MPa | - |
| Compressive tension (1% voltage-23 ° C) | ISO 604 | MPa | - |
| Compression module | ISO 604 | MPa | - |
| Deformation under load 100 Mpa-24 hr- RT | - | % | - |
| Poisson relationship | Abs | - |
(1) For a tension-free resistance of 5000 h: approximate reduction of the value in 1000 hours to 50% of the tensile strength. (2) Stabilized in air at 50% relative humidity. (*) Drying / stabilizing in the atmosphere 50% HR -23 ° C. (**) Stabilizing in the atmosphere 50% HR -23 ° C. (***) Resistance to UV exposure is achieved with pigmentation or specific additive. (****) Bonding and painting are possible after a special surface treatment. The data shown in this table have been determined in our laboratories and should only be considered as a useful reference; They did not commit for us in the different forms of application. As a result of our technological experience and our best knowledge, the data offers an initial evaluation of the polymer. This data cannot be applied to finished parts as obtained under specific conditions and is only an average value. Values should be considered a useful reference and are given without compromise.
Formats
- DELRIN H bars
- DELRIN H tubes
- DELRIN H plates
Specialized Technical Advice
We have specialized staff with extensive experience in the sector for any specific advice they need.
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