nylon 6/6
Nylon 6/6, also known as nylon 66, is an artificial polyamide that is mainly found in fabrics, carpets, and moulded plastic. They are produced from hexamethylenediamine and adipic acid and are characterized by extremely high mechanical strength, rigidity, heat stability, and chemical resistance. These characteristics allow it to meet the requirements for use in automotive, industrial, and consumer markets, as well as in engineering plastic applications due to its strength and versatility.
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Synthetic Polymer (Polyamide)
Nylon 6/6 (which may also be referred to as Nylon 66)
Injection Mold,Extrusion,Blow Forming,Machining


Kingsun's senior machining engineer
nylon 6/6 Properties
Mechanical Properties
- Tensile Strength: High tensile strength means an excellent degree of durability.
- Flexural Modulus: High stiffness must be an order of high rigidity which is linear in nature.
- Impact Resistance: Average resistance to impact is possible in this material but prone to change when it undergoes moisture absorption.
- Wear Resistance: This material has brilliant wear resistance ability incorporating low friction properties.
Physical Properties
- Density: About 1.14 g/cm³.
- Moisture Absorption: It will absorb moisture and this can result in alteration of dimensions and their properties.
Thermal Properties
- Melting Point: Approx 255 °C (491 °F US).
- Heat Deflection Temperature: Fairly resistant to heat making it suitable for use under high temperature conditions.
Electrical Properties
- Dielectric Strength: Provides moderate electrical insulation when in use.
- Volume Resistivity: Considerable volume resistivity thus effective in the insulation.
Post Treatments
- Annealing: Due to internal forces internal stress relief can be carried out due to heat treatment.
- Moisture Conditioning: Material is commonly conditioned to fit the desired levels and dimensions of mechanical properties.
Common Applications
- Automotive Parts: Gears, bushing, under the hood parts.
- Industrial Machinery: Bearings, rollers, wear strips.
- Consumer Goods: Fasteners, zippers and sports equipment.
- Electrical Components: Insulators and connectors.
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Frequently Asked Questions (FAQs)
Q: What is nylon 6/6 and what is its relationship to other types of nylon.
A: Nylon 6/6 is a polyamide polymer and also known as an engineering plastic. The difference is in its chemical structure and properties from other nylon class like nylon 6. For nylon 6/6 there are two monomers and both have 6 carbons: hexamethylenediamine and adipic acid.That configuration also is the reason for that nylon 6/6 has better mechanical strength, stiffness and heat resistant ability than other nylon materials.
Q: How do nylon 6 and nylon 6/6 differ from each other.
A: The main characteristics that can differentiate nylon 6 and nylon 6/6 are, chemical structure, mechanical properties and performance. Compared to nylon 6, nylon 66 gives more resistance to melting point, better heat management, and more mechanical strength. In addition to this, nylon 6/6 does not only have high strength but also comes with good chemical & abrasion resistance making it more ideal in certain industrial sectors.
Q: What are the industries nylon 66 is used in?
A: Due to the high strength and chemical durability of the nylon 66 polymer, it finds a variety of applications in the industry. These include auto parts, electronic parts, industrial applications, textile fibers, and domestic products. It is especially in demand for many industries due to the fact that the products are in high strength, long-wearing time and high temperature resistant.
Q: What is the extrusion process for nylon 6/6?
A: The extrusion process for nylon 66 is essentially the melting of the polymer at its melting point above a die and forcing it through. This thermoplastic can be extruded in the form of fibers, films, or molded members. It ,therefore, makes it possible for the mass production of nylon 6/6 products which have similar and stable properties and dimensions over time.
Q: How would you describe the few key mechanical properties of nylon 6/6?
A: The great advantages of nylon 6/6 include high mechanical strength, high stiffness, and very good impact resistance. It can also boast some very good resistance to wear and to abrasion. For the above reason, it is one of the best engineering plastics for a variety of applications that require high performance and strength under harsh environment conditions. It’s also heat resistant and thus able to withstand high temperatures without losing its mechanical properties, making it ideal for nylon 6.6 applications.
Q: What are the differences in usage of nylon 66 when it is in the engineering plastic form as compared to other polymers?
A: There are several engineering plastics which can easily be substituted with nylon 66. The mechanical performance, chemical resistance, and thermal resistance offered by such nylon 66 thermoplastics is oftentimes higher. Still, relative comparison depends on the stated application and the alternatives for materials. Nylon 6/6 is normally specified where flexible and high performance is required.
Q: What is the chemical formula of nylon 66?
A: nylon 6/6 chemical formula is (C12H22N2O2)n. This is the structural repeating unit of the polymer which is synthesized from the condensation of hexamethylenediamine and adipic acid. The “6/6” in its name refers to the six carbon atom(s) present in each of these two constituents of polymer which is together with the carbon atom containing monomer.
Q: Is nylon 66 suitable for molding purposes?
A: Yes, Nylon 6/6 finds application in a variety of molding processes such as, injection molding, compression molding, blow molding, etc. Because of its thermoplastic nature, nylon 66 can be heated to render a liquefied state and cooled to achieve solid state with ease as many times as one would wish. Which makes it easier when creating more complicated forms and pieces with nylon 6’s versatility. The polymers are dimensionally stable and have a high mechanical strength and thus suitable for molding quality products in the automotive, electrical and consumer products.
Q: How do I get titanium grade 2 materials quote?
A: The best way to obtain a quote for titanium grade 2 materials is to approach titanium product suppliers and manufacturers. Describe your requirements, the quantities needed, and other relevant information to get an accurate quote