DuPont Kevlar Filament Twisted Ply Yarn 400D/3 Black Fire-Resistant Flame Retardant Sewing Thread High Temperature Abrasion Resistant

DuPont Kevlar Filament Twisted Ply Yarn 400D/3 Black Fire-Resistant Flame Retardant Sewing Thread, High Temperature and Abrasion Resistant

Product Features

Kevlar Aramid Filament Twisted Yarn Excellent Mechanical Properties

• Tensile Strength: 3.6 GPa
• Modulus of Elongation: 131 GPa
• Break Elongation: 2.8%–3.5%
• Kevlar exhibits extremely high strength, with a weight-to-tensile ratio 5-6 times that of steel wire, and a modulus 2-3 times that of steel wire or glass fiber, and 7 times that of high-strength nylon. It is recognized as one of the world's strongest fibers.

Kevlar Aramid Filament Twisted Yarn Excellent Thermal Properties

• Long-Term Use Temperature: 380°C
• Axial Thermal Expansion Coefficient: -2 × 10⁻⁶/K
• Thermal Conductivity: 0.048 W/(m·K)
• Kevlar exhibits high stability in temperature performance, capable of being used in temperatures ranging from -196°C to 380°C without significant changes or degradation. It does not dissolve or support combustion (flame resistance), only carbonizing at 427°C. Even at extremely low temperatures like -196°C, it does not become brittle or lose performance. It can also endure brief exposure to temperatures up to 585°C, demonstrating excellent high-temperature resistance.

Kevlar Aramid Filament Twisted Yarn Comprehensive Outstanding Performance

• High tensile strength and pulling force
• Low elongation, high modulus, high breaking strength
• High temperature resistance, flame resistance, non-flammable, only carbonizes
• High chemical resistance and stability
• Low thermal expansion coefficient
• Low specific gravity
• Electrical insulation properties