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DuPont™ Kevlar® 29 Aramid Fiber

Category Other Engineering Material , Composite Fibers , Polymer , Thermoset , Aramid
Manufacturer DuPont
Trade Name Kevlar®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont™ Kevlar® 29 Aramid Fiber.pdf
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Material Notes:
1500 Denier; 1000 Filaments. Kevlar® 29 yarns are used in ballistic applications, ropes and cables, protective apparel such as cut-resistant gloves, in life protection uses such as helmets, vehicular armoring and plates, and as rubber reinforcement in tires and automotive hoses. General KEVLAR Information: DuPont Kevlar® poly-para-phenylene terephthalamide (aramid) has a unique combination of high strength, high modulus, toughness, and thermal stability. It was developed for demanding industrial and advanced-technology applications. It is chemically stable under a wide variety of exposure conditions; however, certain strong aqueous acids, bases, and sodium hypochlorite can cause degradation, particularly over long periods of time and at elevated temperatures. Information provided by DuPont.
Physical Properties Metric English Comments
Density 1.44 g/cc
0.0520 lb/in³
Water Absorption 7.0 %
7.0 %
As shipped; Typical moisture levels on yarn as shipped; they reflect values reached at normal, moderate temperature and humidity levels following fiber production, which is a wet process.
Moisture Absorption at Equilibrium 4.5 %
4.5 %
Equilibrium from Bone-Dry Yarn; Equilibrium values are determined by bone drying the fiber and condition at 75°F (24°C), 55% RH.
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 2920 MPa
424000 psi
Breaking Tenacity
3620 MPa
525000 psi
Epoxy-impregnated strands, ASTM D2343
Elongation at Break 3.6 %
3.6 %
Tensile Modulus 70.3 GPa
10200 ksi
Tenacity 2.03 N/tex
23.0 g/denier
Thermal Properties Metric English Comments
Specific Heat Capacity 1.42 J/g-°C

@Temperature 25.0 °C
0.339 BTU/lb-°F

@Temperature 77.0 °F
Thermal Conductivity 0.0400 W/m-K
0.278 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 149 - 177 °C
300 - 351 °F
For long-term use
Shrinkage <= 0.100 %
<= 0.100 %
In water at 212°F (100°C) and in air at 351°F (177°C)
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