NBR (Nitrile Rubber) vs PA6 (Nylon 6): 0% composition overlap. Significantly different materials serving different application areas.
NBR (Nitrile Rubber) vs PA6 (Nylon 6)
Side-by-side chemical composition and mechanical property comparison.
Overview
NBR (Nitrile Rubber)
Nitrile butadiene rubber (Buna-N) β THE oil and fuel resistant elastomer. ACN content (18-50%) determines the oil resistance vs low-temp flexibility tradeoff. Higher ACN = better oil resistance but stiffer at low temp. The most widely used seal material worldwide. Used for O-rings, fuel hoses, gaskets, hydraulic seals, oil seals, and nitrile gloves. Not suitable for ozone, UV, or polar solvents (ketones, esters). HNBR variant for higher heat resistance.
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.
| NBR (Nitrile Rubber) | PA6 (Nylon 6) | |
|---|---|---|
| Material Number | β | β |
| Category | Polymers | Polymers |
| Standard | ISO 37 | ISO 10350 |
Chemical composition (wt%) β Pro
| Element | NBR (Nitrile Rubber) | PA6 (Nylon 6) | Overlap |
|---|---|---|---|
| Butadiene | 50β82% | β | β |
| Acrylonitrile (ACN) | 18β50% | β | β |
| Polycaprolactam (from Ξ΅-caprolactam) | β | 99β99.9% | β |
Mechanical properties β Pro
| Property | NBR (Nitrile Rubber) | PA6 (Nylon 6) | Unit |
|---|---|---|---|
| Tensile Strength | 7β24 | 75β85 | MPa |
| Elongation | 200β600 | 30β100 | % |
| hardness_shore_a | 40β90 | 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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NBR (Nitrile Rubber) 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 NBR (Nitrile Rubber) the same as PA6 (Nylon 6)?
NBR (Nitrile Rubber) and PA6 (Nylon 6) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace NBR (Nitrile Rubber) 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 NBR (Nitrile Rubber) and PA6 (Nylon 6)?
The main differences are in the following elements: overall alloying content. NBR (Nitrile Rubber) 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.
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.