Product Details

Alumina continuous fiber B-70

With an alumina content of 70% and a boron content of 2%, this fiber has a higher operating temperature than F-72, reaching up to 1,350 degrees. It offers good flexibility and excellent weaving properties, allowing it to be woven into high-temperature-resistant fabrics of various shapes. It is suitable for thermal protection applications—such as those in the petrochemical industry—that involve extreme high-temperature conditions.
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  • Product Details
    • 商品名称: Alumina continuous fiber B-70

    With an alumina content of 70% and a boron content of 2%, this fiber has a higher operating temperature than F-72, reaching up to 1,350 degrees. It offers good flexibility and excellent weaving properties, allowing it to be woven into high-temperature-resistant fabrics of various shapes. It is suitable for thermal protection applications—such as those in the petrochemical industry—that involve extreme high-temperature conditions.

    The continuous alumina fibers produced by Rongrong maintain excellent strength at high temperatures and offer advantages such as low thermal conductivity, thermal shock resistance, chemical stability, high wave permeability, and electrical insulation, enabling them to serve for extended periods in various extreme environments. These fibers can be processed into a variety of end products, including woven fabrics, woven tapes, braided ropes, braided sleeves, sewing threads, and other textiles. They can also be combined with metals, resins, and ceramics to form composite materials that meet a wide range of application needs.

     

    Alumina continuous fiber B-70

    Product Model

    Chemical Compositionwt.%

    Melting Point

    Continuous operating temperature (40% strength  retention)

    Continuous operating temperature (single filament ≤ 1% creep)

    Fiber Diameterμm

    Tex/Filament countg/1000m

    Grain Sizenm

    Crystalline Phase

    Densityg/cc

     

    Single Filament Tensile Strength (MPa

     

    Single Filament Tensile Modulus (GPa

     

    B-70

    70Al₂O₃+28SiO₂+2B₂O₃

    1800

    1300

    /

    10-12

    67/400

    111/400

    222/750

    <500

    γ-Al₂O₃+amorphouse

    3.0

    1800

    185

    Reference Standard

    GBT46537-2025

    /

    /

    /

    GB/T7690.5-2023

    GB/T34520.3-2017

    SEM

    XRD

    GB/T34520.3-2017

    GB/T3290

    GB/T3290

     

Partners

Huayang New Material Technology
Runyang Photovoltaic
Hongen New Material
Aviation Industry Corporation of China Limited
Hunan Ronglan Intelligent Technology Co., Ltd.
Jiangsu Changnai Energy Technology Co., Ltd.
Arsay.
High view solar energy
LONGI
Natural light
BOC Industrial Shen Fei
Institute of Metal Research, Chinese Academy of Sciences
Hefei Institute of Material Science, Chinese Academy of Sciences
China Aerospace Science and Industry Corporation
Nanjing Fiberglass Research Institute
Chinese Space
Sinosteel Lonai
Emergency Management Department Shanghai Fire Research Institute
Tsinghua University
National University of Defense Technology
Dongfang Electric
Beijing Graphene Research Institute
Beijing Glass Research Institute
Harbin Institute of Technology

Product Application Field

3C electronic

3C electronic

Automobile Manufacturing

Automobile Manufacturing

New energy battery

New energy battery

Photovoltaic industry

Photovoltaic industry

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Continuous Alumina Fiber Reinforced Ceramic Matrix Composites

Alumina fiber reinforced ceramic matrix composites, with low density, high specific strength, high specific modulus, corrosion resistance, wear resistance, high fracture toughness and good thermal stability, can effectively overcome the brittleness of ceramic materials, is the most successful application of lightweight high temperature structural composite materials.

Alumina continuous fiber F-72

With an alumina content of 72% and a maximum operating temperature of 1200°C, the fibers are flexible, making them ideal for manufacturing textile products. After weaving or sewing, they can be formed into heat-insulating seals of various shapes and are also suitable for reinforcing composite materials.

Alumina continuous fiber B-70

With an alumina content of 70% and a boron content of 2%, this fiber has a higher operating temperature than F-72, reaching up to 1,350 degrees. It offers good flexibility and excellent weaving properties, allowing it to be woven into high-temperature-resistant fabrics of various shapes. It is suitable for thermal protection applications—such as those in the petrochemical industry—that involve extreme high-temperature conditions.

Alumina continuous fiber C- 85

With an alumina content of 85%, it can be used for extended periods at high temperatures of 1300°C and is suitable for ceramic matrix composite applications. Ceramic products made from this material offer the best resistance to high-temperature thermal shock and creep, and can be used for extended periods in high-temperature, oxygen-rich environments.

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