Questions & Answers
Polyacetal tubes are made from: TECAFORM AH, Ultraform, POM-H, Kepital, POM-C, Hostaform, Delrin.
Key international standards:
ISO 9988 - Polyoxymethylene for extrusion and molding. This standard establishes physical and mechanical property requirements, grade designation methods, POM classification, material quality control system, test methods, physical and mechanical property requirements, labeling, quality control, service temperature conditions, and areas of use.
ASTM D6778 - Specification and classification system for polyoxymethylene materials for molding and extrusion. This standard regulates technical requirements, designations, classification, areas of use, materials covered by the standard, material quality requirements, test methods, thermal, mechanical, and physical properties.
| Size, mm | Weight of 1 m, kg |
| 10×6 | 0,071 |
| 12×8 | 0,089 |
| 16×10 | 0,185 |
| 20×12 | 0,356 |
| 25×15 | 0,57 |
| 30×20 | 0,781 |
| 40×25 | 1,449 |
| 50×30 | 2,232 |
| 60×40 | 2,678 |
| 80×60 | 3,12 |
| 100×80 | 4,018 |
| Indicator | POM-C | POM-H |
| Density, g/cm³ | 1,41 | 1,42 |
| Water absorption, % | 0,2 | 0,25 |
| Melting point, °С | 165 | 175 |
| Friction coefficient | 0,2–0,35 | 0,2–0,3 |
| Thermal conductivity, Wt/(m·К) | 0,31 | 0,35 |
| Indicator | POM-C | POM-H |
| Tensile strength, MPa | 60–70 | 70–80 |
| Modulus of elasticity, MPa | 2600–2900 | 3000–3400 |
| Hardness Shore D | 80–85 | 85–90 |
| Impact strength, kJ/m² | 7–10 | 6–8 |
| Elongation at break, % | 20–40 | 15–25 |