Polyamide 66 (Nylon 66, PA66) CAS 32131-17-2

PA6 and PA66 are the most produced and widely used engineering plastics, accounting for over 90% of total polyamide consumption.

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Product Description

PA6 and PA66 are the most produced and widely used engineering plastics, accounting for over 90% of total polyamide consumption. PA6 is known for its good impact resistance, processing flowability, and cost-effectiveness, making it suitable for automotive radiator tanks, intake manifolds, electronic and electrical components, industrial gears, and BOPA films. PA66, on the other hand, excels in higher strength, heat resistance, and dimensional stability, making it suitable for high-end structural components such as engine covers, cooling system parts, and high-strength gear connectors. Both are available in various modified grades, including glass fiber reinforced, flame-retardant, toughened, and abrasion-resistant varieties. Small-batch trial orders and customized packaging are supported, and exports are efficient and hassle-free thanks to major ports such as Qingdao, Tianjin, and Shanghai.

Product Information

ItemDescription
Product NamePolyamide 66 (Nylon 66, PA66)
CAS No.32131-17-2
AppearanceMilky white or slightly yellow translucent granules
Raw MaterialAdipic Acid + Hexamethylenediamine via polycondensation
Main TypesInjection Grade, Glass-Filled Grade (10%-50%), Flame Retardant Grade (UL94 V-0/V-2), Toughened Grade, Wear-Resistant Grade (PTFE/MoS₂), Heat-Stabilized Grade
Key Physical & Chemical PropertiesDensity: 1.13-1.16 g/cm³; Melting Point: 250-265℃; HDT (1.86MPa): approx. 90℃ (unfilled); Continuous Use Temp: 100-120℃ (higher after reinforcement); Water Absorption (24h): approx. 1.2%
Typical Performance ParametersTensile Strength: approx. 80MPa (dry); Elongation at Break: approx. 60%; Flexural Modulus: approx. 3000MPa; Notched Impact Strength: 6-10 kJ/m²; Rockwell Hardness: R118-120; Superior heat resistance to PA6, better high-temperature performance, lower water absorption
FeaturesHighest mechanical strength among nylon grades; excellent heat resistance (100-120℃ continuous use); better dimensional stability than PA6 (lower water absorption); excellent wear resistance and self-lubricating; oil and solvent resistant; glass-filled grades achieve strength comparable to metals with HDT >200℃
Main ApplicationsAutomotive (largest application): engine covers, intake manifolds, radiator tanks, cooling system components, fuel/brake lines, seatbelt buckles, door handles, sunroof systems, gearboxes; Electronics: connectors, relays, coil bobbins, circuit breakers, switches, housings; Industrial: high-strength gears, bearing cages, cams, pump bodies, hydraulic fittings; Sports: ski bindings, bicycle parts, carabiners; Others: cable ties, fasteners, clips
Packaging25kg aluminum foil bags or PE-lined woven bags; 750kg jumbo bags; custom available
Storage ConditionsStore in cool, dry, ventilated area, RH<50%, temp 15-25℃; keep sealed to prevent moisture absorption; use within 6 months; must be dried before processing (80-100℃, 2-6 hours)
Shipping RequirementsNon-hazardous cargo; protect from moisture and rain; avoid mixing with organic solvents and oils
Quality StandardsGB/T 29365-2012; Food contact: GB 4806.6-2016, FDA 21 CFR 177.1500, EU 10/2011; REACH, RoHS, UL94 available


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Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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