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A semi-crystalline, white engineering thermoplastic very similar to nylon 6,6 with which it is in many respects interchangeable. Its melt viscosity is not quite as low as 6,6 so it is generally slightly easier to process and often preferred for moulding. Relative to 6,6 it has somewhat higher impact strength but somewhat lower strength and stiffness and higher water absorption (the highest of all nylons).
See where Polyamide Nylon 6 falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.
1.18 g/cm³ at 20 °C
0.2 - 0.3 [-]
Limiting oxygen indexLOI
25 % at 20 °C
2.7 % at 20 °C
Water absorption, equilibriumcwater,equib
8 % at 20 °C
Hardness, Rockwell MHRM
Coefficient of thermal expansionα
9.5E-5 1/K at 20 °C
UL 94 - HB
Heat deflection temperature, 0.45 MPaHDT0.45,MPa
Max service temperatureTmax
80 - 160 °C
Min service temperatureTmin
Specific heat capacitycp
1700 J/(kg·K) at 20 °C
0.24 - 0.28 W/(m·K) at 23 °C
Dielectric constant, 1MHzεr,1MHz
3.6 [-] at 20 °C
25 kV/mm at 20 °C
Dissipation factor, 1MHzε''1MHz
0.2 [-] at 20 °C
5.00E+10 Ω·m at 20 °C
5.00E+10 Ω/sq at 20 °C
Ideal packing material for material for many applications, particularly where the product is to be stored or used in adverse conditions, being resistant to heat oils and grease. Also, ideal for sterilizing and storing many types of surgical equipment, including instruments, dressings and linen.
Chemical Resistance to: Acids - concentrated: Poor; Acids - dilute: Poor; Alcohols: Good; Alkalis: Good-Fair; Aromatic hydrocarbons: Good; Greases and Oils: Good; Halogenated Hydrocarbons: Good-Poor; Halogens: Poor; Ketones: Good
It can be monomer cast, commonly called just cast - i.e. polymerised in a mould direct to a semi-fabricated shape. This allows the production of thick sections without voiding and gives a product with a slightly different balance of properties - a little stronger and stiffer, slightly reduced extensibility and impact strength.Its applications are similar to those of nylon 6,6.
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