DELRIN® Acetal Homopolymer - Stock Shapes (rods, plates, tubes)
Chemical Designation
POM-H (Polyacetal (Homopolymer))
Colour
white black
Density
1.41 g/cm3
Main features
- good machinability
- high stiffness
- high fatigue strength
- high creep resistance
- good wear properties
- very good abrasion resistance
Target Industries
- food processing
- food engineering
- construction industry
- automotive industry
- mechanical engineering
- conveyor technology
- fixture construction
- home appliances
- electronics
- gear manufacturing
| Mechanical properties | condition | value | unit | test method | comment | |
|---|---|---|---|---|---|---|
| Modulus of elasticity (tensile test) |
|
450,000 | psi | ASTM D 638 | (1) 1% strain,injection molded |
|
| Tensile strength at yield | |
11,000 | psi | ASTM D 638 | ||
| Elongation at break (tensile test) | @ 73 °F |
25 | % | ASTM D 638 | ||
| Flexural strength | @ 73 °F |
11,500 | psi | ASTM D 790 | ||
| Modulus of elasticity (flexural test) |
@ 73 °F |
420,000 | psi | ASTM D 790 | ||
| Compression strength | |
5,200 | psi | ASTM D 695 | 1) | |
| Impact strength (Izod) | @ 73 °F |
1.5 | ft-lbs/in | - | ||
| Rockwell hardness | @ 73 °F M Scale (R Scale) |
94 (120) | ASTM D 785 | |||
| Coefficient of friction | Dynamic 40 psi, 50 fpm |
.2 | ASTM D 3702 | |||
| Wear rate | 40 psi, 50 fpm |
55*10-10 | in³-min/ft-lbs-hr | ASTM D 3702 |
| Thermal properties | condition | value | unit | test method | comment | |
|---|---|---|---|---|---|---|
| Melting temperature | |
347 | °F | ASTM D 2133 | 1) | (1) Injection molded sample |
| Deflection temperature | @ 66 psi |
336 | °F | ASTM D 648 | ||
| Deflection temperature | @264 psi |
257 | °F | ASTM D 648 | ||
| Service temperature | Intermittent |
300 | °F | - | ||
| Service temperature | Long Term |
185 | °F | - | ||
| Thermal expansion (CLTE) | |
6.8*10-5 | in/in/°F | ASTM D 696 | ||
| Specific heat | |
0.35 | BTU/lb-F° | - |
| Electrical properties | condition | value | unit | test method | comment | |
|---|---|---|---|---|---|---|
| volume resistance | |
> 1015 | ASTM D257 |
|
||
| Dielectric strength | |
500 | V/mil | ASTM D 149 | ||
| Dissipation factor | @ 60 Hz, 73 °F |
.005 | ASTM D 150 | |||
| Dielectric constant | @ 60 Hz, 73 °F, 50% RH |
3.7 | ASTM D 150 |
| Other properties | condition | value | unit | test method | comment | |
|---|---|---|---|---|---|---|
| Moisture absorption | @ 24 hrs, 73 °F |
.25 | % | ASTM D 570 | (1) 1.47mm injection mold |
|
| Moisture absorption | @ saturation, 73 °F |
.90 | % | ASTM D 570 | ||
| Flammability (UL94) | UL 94 |
HB | - | 1) |
- Resin specification:
ASTM D6778-20 POM0111
Shapes specification:
ASTM D6100-17 S-POM0111
Information about products and services sold by Ensinger, including without limitation information contained in this document do not constitute a warranty by Ensinger as to the quality and state or durability of products or services, or any guarantee of chemical resistance. Such information reflects the current state of our knowledge and is intended only to assist and advise the recipient. The recipient shall not be entitled to rely on Ensinger provided information and the recipient agrees to evaluate such information, to make an independent decision regarding the suitability of such information, products and services for its application, and only use such products, services and information pursuant to then current good product stewardship principles and all regulatory requirements applicable to the recipient’s business. Values are guidelines that can be used for comparative purposes in material selection. They are within the normal range of product properties and do not represent guaranteed property values. Testing under individual application circumstances is always recommended. Data is obtained from extruded shapes material unless otherwise noted. References to FDA compliance refer to the resins from which the products were made unless otherwise noted. Data sheet values are subject to periodic review and the most recent update can be found at www.ensingerplastics.com