FKM (Fluoroelastomer / Viton) vs PA6 (Nylon 6): 0% composition overlap. Significantly different materials serving different application areas.
FKM (Fluoroelastomer / Viton) vs PA6 (Nylon 6)
Side-by-side chemical composition and mechanical property comparison.
Overview
FKM (Fluoroelastomer / Viton)
Fluoroelastomer β THE high-temperature and chemical-resistant rubber. Outstanding resistance to oils, fuels, acids, and solvents at temperatures up to 200Β°C (short-term 230Β°C). Fluorine content (64-70%) determines chemical resistance. Trade names: Viton (Chemours), Tecnoflon (Solvay), Dai-El (Daikin). 5-10x more expensive than NBR. Used for aerospace fuel seals, chemical process seals, automotive fuel injector O-rings, semiconductor processing, and any seal exposed to aggressive chemicals at high temperature.
PA6 (Nylon 6)
Polyamide 6 (Nylon 6) β the most widely used engineering thermoplastic. Excellent combination of mechanical strength, toughness, wear resistance, and chemical resistance. Properties are moisture-sensitive β conditioned (50% RH) values are significantly lower than dry values. Trade names include Ultramid B (BASF), Akulon (DSM), Zytel (DuPont). Used for gears, bearings, bushings, cable ties, structural brackets, and automotive under-hood components.
| FKM (Fluoroelastomer / Viton) | PA6 (Nylon 6) | |
|---|---|---|
| Material Number | β | β |
| Category | Polymers | Polymers |
| Standard | ISO 37 | ISO 10350 |
Chemical composition (wt%) β Pro
| Element | FKM (Fluoroelastomer / Viton) | PA6 (Nylon 6) | Overlap |
|---|---|---|---|
| Vinylidene Fluoride (VDF) | 30β60% | β | β |
| Hexafluoropropylene (HFP) | 25β45% | β | β |
| Tetrafluoroethylene (TFE) | 0β30% | β | β |
| Polycaprolactam (from Ξ΅-caprolactam) | β | 99β99.9% | β |
Mechanical properties β Pro
| Property | FKM (Fluoroelastomer / Viton) | PA6 (Nylon 6) | Unit |
|---|---|---|---|
| Tensile Strength | 8β17 | 75β85 | MPa |
| Elongation | 150β350 | 30β100 | % |
| hardness_shore_a | 60β90 | β | Shore A |
| Density | |||
| continuous_service_temp | |||
| Yield Strength | |||
| Elastic Modulus | |||
| Glass Transition Temp (Tg) | |||
| Melting Point | |||
| Water Absorption (24h) | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Charpy Impact (notched) | |||
| Density | |||
| Melting Point | |||
| Glass Transition Temp | |||
| Water Absorption (24h) | |||
| Water Absorption (saturation) |
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FKM (Fluoroelastomer / Viton) and PA6 (Nylon 6) 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 FKM (Fluoroelastomer / Viton) the same as PA6 (Nylon 6)?
FKM (Fluoroelastomer / Viton) and PA6 (Nylon 6) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace FKM (Fluoroelastomer / Viton) with PA6 (Nylon 6)?
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 FKM (Fluoroelastomer / Viton) and PA6 (Nylon 6)?
The main differences are in the following elements: overall alloying content. FKM (Fluoroelastomer / Viton) is a Polymers grade, while PA6 (Nylon 6) is a Polymers grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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