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Polyamide 46

Updated: 2026-07-15

Overview

Polyamide 46 (PA46) is a high-performance thermoplastic polymer belonging to the nylon family. It is synthesized from adipic acid and hexamethylenediamine, resulting in a material with exceptional mechanical and thermal properties. PA46 is particularly valued for its ability to maintain strength and dimensional stability at elevated temperatures, making it suitable for demanding industrial applications. Compared to other polyamides like PA6 or PA66, PA46 offers superior heat resistance and mechanical performance. Its crystalline structure contributes to its high melting point and rigidity, which are critical for applications in high-temperature environments. The polymer is also known for its excellent chemical resistance, particularly against oils and fuels.

Physical and Chemical Properties

铁氟龙增强PA46 HGR2 BK00001 +PTFE15% 耐磨 润滑 黑色pa46东莞市鑫诚达塑料有限公司

PA46 exhibits a density of approximately 1.18 g/cm³ and a melting point around 295°C, which is higher than many other nylons. Its thermal stability allows it to perform reliably in environments where temperatures exceed 150°C. The material's high crystallinity contributes to its rigidity and resistance to creep under load. Chemically, PA46 is resistant to many oils, fuels, and solvents, though it can be degraded by strong acids and oxidizing agents. Its mechanical properties include high tensile strength, impact resistance, and fatigue endurance, making it ideal for dynamic load-bearing applications. The polymer is also electrically insulating, which is beneficial for electronic components.

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Main Applications

PA46 is widely used in the automotive industry for components such as engine covers, throttle valves, and transmission parts, where high-temperature resistance is essential. Its ability to withstand mechanical stress and chemical exposure makes it a preferred material for under-the-hood applications. In the electrical and electronics sector, PA46 is used for connectors, switches, and circuit breakers due to its insulating properties and flame resistance. Industrial applications include gears, bearings, and other machinery parts that require durability and low friction. The material's versatility also extends to consumer goods, such as high-performance sports equipment.

Safety and Storage

铁氟龙增强PA46 HGR2 BK00001 +PTFE15% 耐磨 润滑 黑色pa46上海元丰塑化科技有限公司

When handling PA46, it is important to avoid inhaling dust particles, which can irritate the respiratory system. Protective equipment such as gloves and masks should be used during processing. The material should be stored in a cool, dry environment to prevent moisture absorption, which can affect its properties. PA46 is generally considered safe for most applications, but it should not be used in contact with strong acids or oxidizing agents, which can degrade the polymer. Proper ventilation is recommended during machining or molding processes to minimize exposure to fumes.

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B2B Procurement Guide

When procuring PA46, buyers should prioritize suppliers with certifications such as ISO 9001 to ensure material quality and consistency. Key specifications to verify include melt flow rate, tensile strength, and thermal stability, as these can vary between grades. Prices for PA46 typically range from $5 to $10 per kg, depending on the grade and quantity purchased. Bulk orders may qualify for discounts, but buyers should also consider logistical factors such as lead times and minimum order quantities. It is advisable to request material data sheets (MDS) and test samples before finalizing large purchases.

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