PE-UHMW vs POM-H (Acetal Homopolymer): 0% composition overlap. Significantly different materials serving different application areas.
PE-UHMW vs POM-H (Acetal Homopolymer)
Side-by-side chemical composition and mechanical property comparison.
Overview
PE-UHMW
Ultra-High Molecular Weight Polyethylene — the highest impact-strength thermoplastic. Molecular weight 2-6 million g/mol. Self-lubricating, extremely wear-resistant (15x better than carbon steel), and chemically inert. Used for hip/knee implant bearings, conveyor guides, dock fenders, chute liners, food processing equipment, and ballistic armor (Dyneema/Spectra fiber form).
POM-H (Acetal Homopolymer)
Polyoxymethylene Homopolymer — slightly stronger and stiffer than POM-C copolymer but with centerline porosity in stock shapes and lower resistance to hot water/alkalis. Trade names include Delrin (DuPont/DuPont de Nemours) and Tenac (Asahi Kasei). Used for gears, cams, springs, clips, fuel system components, and precision-machined parts where maximum stiffness is needed.
| PE-UHMW | POM-H (Acetal Homopolymer) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 11542 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | PE-UHMW | POM-H (Acetal Homopolymer) | Overlap |
|---|---|---|---|
| Base Polymer (Polyethylene, UHMW) | 99.5–99.9% | — | — |
| Polyoxymethylene (OCH2 homopolymer) | — | 99–99.9% | — |
Mechanical properties — Pro
| Property | PE-UHMW | POM-H (Acetal Homopolymer) | Unit |
|---|---|---|---|
| Tensile Strength | 39–48 | 66–73 | MPa |
| Yield Strength | 19–23 | 65–70 | MPa |
| Elongation | 250–450 | 15–25 | % |
| Elastic Modulus | |||
| Density | |||
| hardness_shore_d | |||
| Melting Point | |||
| Water Absorption (24h) | |||
| Continuous Use Temp |
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PE-UHMW and POM-H (Acetal Homopolymer) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is PE-UHMW the same as POM-H (Acetal Homopolymer)?
PE-UHMW and POM-H (Acetal Homopolymer) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PE-UHMW with POM-H (Acetal Homopolymer)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between PE-UHMW and POM-H (Acetal Homopolymer)?
The main differences are in the following elements: overall alloying content. PE-UHMW is a Polymers grade, while POM-H (Acetal Homopolymer) is a Polymers grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.