{"id":4214,"date":"2026-04-24T01:02:54","date_gmt":"2026-04-24T01:02:54","guid":{"rendered":"https:\/\/nylonplastic.com\/?p=4214"},"modified":"2026-04-24T09:03:07","modified_gmt":"2026-04-24T09:03:07","slug":"nylon-material-properties-complete-technical-reference-2","status":"publish","type":"post","link":"https:\/\/nylonplastic.com\/ar\/nylon-material-properties-complete-technical-reference-2\/","title":{"rendered":"Nylon Material Properties: A Complete Technical Reference"},"content":{"rendered":"
\"Nylon
Engineering nylon material properties reference \u2014 Nylon Plastic<\/figcaption><\/figure>\n

Comprehensive technical data on nylon\/PA material properties \u2014 thermal, mechanical, chemical resistance, electrical, and comparison tables across grades.<\/p>\n

Table of Contents<\/strong><\/p>\n
    \n
  1. Overview of Nylon Material Properties<\/a><\/li>\n
  2. Mechanical Properties by Nylon Grade<\/a><\/li>\n
  3. Thermal Properties<\/a><\/li>\n
  4. Moisture Absorption and Environmental Effects<\/a><\/li>\n
  5. Chemical Resistance of Nylon<\/a><\/li>\n
  6. Electrical and Flammability Properties<\/a><\/li>\n<\/ol>\n<\/div>\n

    Overview of Nylon Material Properties<\/h2>\n

    Nylon (polyamide) materials occupy a unique position in engineering thermoplastics: they offer the highest combination of strength, toughness, and wear resistance among non-reinforced plastics, while remaining processable on standard injection molding and extrusion equipment. This technical reference compiles the key properties that engineers, designers, and procurement specialists need when evaluating nylon for specific applications.<\/p>\n

    All data in this reference applies to conditioned material (23\u00b0C, 50% RH) unless otherwise noted. Moisture content significantly affects mechanical properties \u2014 dry-as-molded values can be 20-40% higher than conditioned values for unfilled nylon.<\/p>\n

    Mechanical Properties by Nylon Grade<\/h2>\n

    Tensile Properties<\/strong>:<\/p>\n

    \n\n\n\n\n\n\n\n\n\n\n\n
    \u0627\u0644\u0645\u0645\u062a\u0644\u0643\u0627\u062a<\/th>\nPA6<\/th>\nPA66<\/th>\nPA46<\/th>\nPA12<\/th>\nPA6-GF30<\/th>\nPA66-GF30<\/th>\n<\/tr>\n<\/thead>\n
    \u0642\u0648\u0629 \u0627\u0644\u0634\u062f (\u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644)<\/td>\n80<\/td>\n82<\/td>\n90<\/td>\n55<\/td>\n170<\/td>\n185<\/td>\n<\/tr>\n
    Elongation at Break (%)<\/td>\n150<\/td>\n60<\/td>\n45<\/td>\n200<\/td>\n3<\/td>\n3<\/td>\n<\/tr>\n
    Tensile Modulus (GPa)<\/td>\n2.8<\/td>\n3.0<\/td>\n3.2<\/td>\n1.7<\/td>\n9.0<\/td>\n10.0<\/td>\n<\/tr>\n
    Flexural Strength (MPa)<\/td>\n100<\/td>\n110<\/td>\n130<\/td>\n75<\/td>\n240<\/td>\n270<\/td>\n<\/tr>\n
    Flexural Modulus (GPa)<\/td>\n2.6<\/td>\n2.8<\/td>\n2.9<\/td>\n1.6<\/td>\n8.5<\/td>\n9.2<\/td>\n<\/tr>\n
    Notched Izod Impact (J\/m)<\/td>\n55<\/td>\n45<\/td>\n60<\/td>\n45<\/td>\n100<\/td>\n105<\/td>\n<\/tr>\n
    Unnotched Izod (J\/m)<\/td>\nNo break<\/td>\nNo break<\/td>\n450<\/td>\nNo break<\/td>\n600<\/td>\n700<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Key Observations<\/strong>: – PA6 has higher elongation (more ductile) but PA66 has higher strength – Glass fiber reinforcement (GF30 = 30% glass fiber) increases strength 2-2.5\u00d7 but dramatically reduces ductility – PA46 outperforms all standard nylons in both strength and thermal resistance, at higher cost – PA12 is the softest and most flexible \u2014 lowest strength but best impact resistance at low temperatures<\/p>\n

    Thermal Properties<\/h2>\n

    Thermal performance is often the deciding factor in grade selection:<\/p>\n

    \n\n\n\n\n\n\n\n\n\n\n\n
    \u0627\u0644\u0645\u0645\u062a\u0644\u0643\u0627\u062a<\/th>\nPA6<\/th>\nPA66<\/th>\nPA46<\/th>\nPA12<\/th>\nPA6-GF30<\/th>\n<\/tr>\n<\/thead>\n
    Melting Point (\u00b0C)<\/td>\n225<\/td>\n265<\/td>\n295<\/td>\n180<\/td>\n225<\/td>\n<\/tr>\n
    Glass Transition Temp (\u00b0C)<\/td>\n50-60<\/td>\n65-70<\/td>\n75<\/td>\n40-45<\/td>\n50-60<\/td>\n<\/tr>\n
    HDT @ 0.45 MPa (\u00b0C)<\/td>\n170<\/td>\n250<\/td>\n285<\/td>\n145<\/td>\n215<\/td>\n<\/tr>\n
    HDT @ 1.82 MPa (\u00b0C)<\/td>\n65<\/td>\n90<\/td>\n160<\/td>\n55<\/td>\n195<\/td>\n<\/tr>\n
    Continuous Service Temp (\u00b0C)<\/td>\n100-115<\/td>\n130-150<\/td>\n170-180<\/td>\n80-95<\/td>\n140-160<\/td>\n<\/tr>\n
    Thermal Conductivity (W\/m\u00b7K)<\/td>\n0.25<\/td>\n0.25<\/td>\n0.30<\/td>\n0.23<\/td>\n0.47<\/td>\n<\/tr>\n
    Specific Heat (J\/g\u00b7K)<\/td>\n1.7<\/td>\n1.7<\/td>\n1.4<\/td>\n1.6<\/td>\n1.3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    HDT Notes<\/strong>: – Heat Deflection Temperature (HDT) measures temperature at which a specimen deflects 0.25mm under specified load – Glass fiber reinforcement dramatically improves HDT \u2014 GF30 grades achieve 2-3\u00d7 the HDT of unfilled grades at 1.82 MPa – PA66-GF30 at 1.82 MPa: 250\u00b0C \u2014 suitable for under-hood automotive applications – PA12’s low HDT limits use to room-temperature applications<\/p>\n

    Related Guides<\/strong><\/p>\n

    PC 3D Printing Guide<\/a>   Engineering Plastics Cost<\/a>   Outdoor Plastic Selection<\/a>   Nylon Moisture Drying Guide<\/a>   Nylon Chemical Resistance<\/a><\/p>\n<\/div>\n

    Moisture Absorption and Environmental Effects<\/h2>\n

    Nylon’s moisture absorption is a critical consideration \u2014 more so than almost any other engineering plastic:<\/p>\n

    \n\n\n\n\n\n\n\n\n\n
    \u0627\u0644\u0635\u0641<\/th>\nMoisture Absorption (24h, 50% RH)<\/th>\nMoisture Absorption (saturation, 23\u00b0C\/50% RH)<\/th>\nEquilibrium Humidity<\/th>\n<\/tr>\n<\/thead>\n
    PA6<\/td>\n1.6%<\/td>\n9.5%<\/td>\n2.5-3.0%<\/td>\n<\/tr>\n
    PA66<\/td>\n1.2%<\/td>\n8.5%<\/td>\n2.5%<\/td>\n<\/tr>\n
    PA46<\/td>\n1.2%<\/td>\n6.5%<\/td>\n2.0%<\/td>\n<\/tr>\n
    PA12<\/td>\n0.3%<\/td>\n1.5%<\/td>\n0.7%<\/td>\n<\/tr>\n
    PA11<\/td>\n0.4%<\/td>\n2.0%<\/td>\n0.8%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Impact of Moisture on Properties<\/strong>: – Tensile strength decreases 15-25% at saturated condition vs. dry-as-molded – Impact resistance INCREASES with moisture absorption (nylon becomes tougher when conditioned) – Dimensional change: PA6 swells approximately 0.4% per 1% moisture absorbed \u2014 must be accounted for in precision parts – Electrical insulation properties degrade significantly with moisture (dielectric constant increases 2\u00d7)<\/p>\n

    Design Recommendations<\/strong>: – PA12 for parts exposed to humid environments or water immersion – Dry-as-molded properties for designing dimensional tolerances in molds – Condition parts to equilibrium before measuring critical dimensions<\/p>\n

    Chemical Resistance of Nylon<\/h2>\n

    Nylon’s chemical resistance profile determines suitability for industrial environments:<\/p>\n

    Good Resistance (no significant attack at 23\u00b0C)<\/strong>: – Aliphatic hydrocarbons (gasoline, mineral oils, diesel) – Alcohols (methanol, ethanol, isopropanol) – Esters and ketones (acetone, MEK \u2014 limited exposure) – Weak acids (acetic acid, citric acid \u2014 verify case-by-case) – Dilute alkalis and salts<\/p>\n

    Poor Resistance (attack or degradation)<\/strong>: – Concentrated mineral acids (HCl, H2SO4, HNO3) \u2014 rapid hydrolysis – Strong oxidizing agents (hydrogen peroxide >10%) – Phenol and formic acid \u2014 dissolves nylon – Calcium chloride (desiccant) \u2014 causes stress cracking – Strong alkalis at elevated temperature<\/p>\n

    Specialty Grades for Chemical Service<\/strong>: – PA12 for automotive fuel lines \u2014 resistant to aromatic fuels and alcohol blends – PA6I\/6T (transparent nylon) for chemical contact applications requiring clarity – Glass-filled grades for chemical pump housings and valve components<\/p>\n

    \"Nylon
    Nylon automotive engineering \u2014 Nylon Plastic<\/figcaption><\/figure>\n

    Electrical and Flammability Properties<\/h2>\n

    Electrical Properties<\/strong> (at 50% RH conditioning):<\/p>\n

    \n\n\n\n\n\n\n\n\n\n
    \u0627\u0644\u0645\u0645\u062a\u0644\u0643\u0627\u062a<\/th>\nPA6<\/th>\nPA66<\/th>\nPA12<\/th>\n<\/tr>\n<\/thead>\n
    Dielectric Strength (kV\/mm)<\/td>\n20<\/td>\n20<\/td>\n18<\/td>\n<\/tr>\n
    Volume Resistivity (\u03a9\u00b7cm)<\/td>\n10^15<\/td>\n10^15<\/td>\n10^14<\/td>\n<\/tr>\n
    Surface Resistivity (\u03a9)<\/td>\n10^13<\/td>\n10^13<\/td>\n10^12<\/td>\n<\/tr>\n
    Dielectric Constant (1 MHz)<\/td>\n3.8<\/td>\n3.6<\/td>\n3.1<\/td>\n<\/tr>\n
    Dissipation Factor (1 MHz)<\/td>\n0.02<\/td>\n0.02<\/td>\n0.03<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Flammability Ratings<\/strong>: | Grade | UL94 Rating | Oxygen Index (%) | |—|—|—| | PA6 | HB | 24 | | PA66 | HB | 24 | | PA12 | HB | 22 | | PA6-GF30 | HB | 23 | | FR grades | V-0 | 32+ |<\/p>\n

    Nylon burns with a self-sustaining flame and drips. For electrical enclosures or components requiring flame retardancy, specify FR (flame retardant) grades \u2014 typically PA66 with halogen or phosphorus-based flame retardants.<\/p>\n

    Related Products<\/strong><\/p>\n
    \n
    Carbon Fiber Nylon (CF30)<\/a><\/p>\n

    ESD properties + 5x stiffness \u2014 specialty line<\/p>\n<\/div>\n

    CNC Machining Services<\/a><\/p>\n

    Custom nylon parts from CAD to delivery \u2014 ISO9001<\/p>\n<\/div>\n<\/div>\n<\/div>\n

    FAQs<\/h2>\n

    Q1: What is the best nylon grade for injection molding?<\/strong><\/p>\n

    A: PA66-GF30 is the most widely used grade for structural injection molding parts. PA6 offers good mechanical properties at lower cost. PA12 is best for fluid contact and low-moisture applications.<\/p>\n

    Q2: How do I prevent moisture problems in nylon parts?<\/strong><\/p>\n

    A: Dry nylon to below 0.2% moisture content (80C for 4-6 hours in a desiccant dryer) before processing. Store dried material in sealed containers with desiccant.<\/p>\n

    Q3: Can nylon be used for food contact applications?<\/strong><\/p>\n

    A: Yes, both PA6 and PA66 have FDA food contact approvals (21 CFR 177.1500). EU Regulation 10\/2011 compliance is available for KSAN and similar brands.<\/p>\n

    Q4: What reinforcement provides the best stiffness?<\/strong><\/p>\n

    A: Carbon fiber reinforced nylon (CF30) provides 5x the stiffness of unfilled nylon, approaching aluminum. Glass fiber (GF30) provides 3x stiffness at lower cost.<\/p>\n

    Q5: How does nylon compare to POM for mechanical applications?<\/strong><\/p>\n

    A: Nylon has better chemical resistance, higher temperature performance, and superior fatigue resistance. POM has better dimensional stability in humid environments and lower friction.<\/p>\n

    \n

    Need high-performance nylon materials or custom parts?<\/p>\n

    With 20+ years<\/strong> in engineering plastics, we serve 30+ countries<\/strong> worldwide. Capabilities: CNC machining | Injection molding | 3D printing | Mold manufacturing. ISO9001 | IATF16949 | ISO14001 certified.<\/p>\n

    Get a Free Quote<\/a><\/p>\n<\/div>\n

    \n

    Have a technical question about nylon material selection?<\/p>\n

    Our engineering team is ready to help with material recommendations, pricing, and samples.<\/p>\n

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