3M™ Nextel™ 312, 440 & 610 for Aerospace & Thermal Shielding
3M™ Nextel™ 312, 440 & 610 for Aerospace & Thermal Shielding

3M™ Nextel™ 440 Alumina–Boria–Silica Yarn

High-Performance Ceramic Fiber Yarn for Extreme Heat Applications

3M™ Nextel™ 440 Alumina–Boria–Silica Yarn is a high-performance continuous filament ceramic fiber engineered for applications requiring exceptional thermal stability, oxidation resistance, and mechanical strength at elevated temperatures.

Developed using advanced ceramic fiber technology, this yarn is widely used in aerospace insulation systems, industrial high-temperature textiles, and advanced thermal protection materials.

With reliable performance at temperatures approaching 1300°C, Nextel™ 440 yarn is ideal for extreme heat environments where conventional materials fail.

What Is Nextel™ 440 Ceramic Fiber Yarn?

Nextel™ 440 yarn consists of continuous ceramic filaments made from alumina–boria–silica, offering superior strength retention, thermal durability, and resistance to oxidation and chemical degradation.

Key Features

  • Continuous operating temperature up to 1300°C
  • Alumina–boria–silica ceramic composition
  • High tensile strength and durability
  • Excellent oxidation and chemical resistance
  • Outstanding thermal shock resistance
  • Non-combustible and flame resistant
  • Lightweight and flexible for textile processing

Applications

  • Aerospace thermal protection systems
  • Aircraft and turbine engine insulation
  • Industrial furnace insulation textiles
  • High-temperature woven ceramic fabrics
  • Thermal barriers and heat shields
  • Ceramic matrix composite reinforcement

FAQs

It is used for high-temperature fabrics, aerospace insulation systems, ceramic matrix composites, and industrial thermal protection materials.

It can typically operate continuously at temperatures up to around 1300°C.

It provides excellent thermal stability, oxidation resistance, and mechanical strength in extreme heat environments.

Yes, it is commonly used to produce woven fabrics, braided sleeves, tapes, and other high-temperature textile products.

Product Tags

3M Nextel 440 yarn, alumina boria silica yarn, high temperature ceramic yarn, aerospace insulation yarn, thermal protection materials