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90WNiFe Tungsten alloy block

Tungsten-based dense alloys possess outstanding properties such as high density, high strength, excellent thermal resistance, and superior corrosion resistance. The high-specific-weight alloys manufactured by Zhuzhou Jiuding find wide-ranging applications and hold irreplaceable value in fields including aerospace, national defense and military industries, as well as medical imaging. Their exceptional radiation shielding performance makes them an ideal material for CT machine collimators and radiotherapy equipment; meanwhile, their high specific weight enables their extensive use in balancing counterweights and inertial navigation system components, effectively enhancing the performance stability and service life of such equipment.

    Description

    High melting point: Tungsten has the highest melting point among all pure metals, reaching 3422°C (6191.6°F), which endows tungsten alloy sheets with exceptional resistance to high-temperature environments.

     Outstanding mechanical strength: These alloys are extremely hard and durable, often exceeding the hardness of many other metals; this makes these components more durable and wear-resistant.

    High thermal conductivity: Tungsten exhibits high thermal conductivity, making it suitable for applications requiring continuous and controlled heating.

    Application of tungsten alloy syringe protective covers

    1.Aerospace Industry: In the aerospace sector, tungsten alloys are frequently used to manufacture engine components—such as turbine blades and combustion chamber parts—due to their exceptional high-temperature performance and strength under extreme environmental conditions.

    2.Nuclear Industry: In nuclear reactors, tungsten-based high-density alloys are employed to manufacture critical components—including control rods, heat exchangers, and fuel assemblies—because they effectively absorb neutrons while maintaining stable physical and chemical properties.

    3.Mining and Drilling Equipment: In the mining and oil extraction industries, drill bits and cutting tools made from tungsten-based high-density alloys are widely used owing to their high hardness and wear resistance.

    4.Jewelry and Accessories: Despite their higher cost, high-density tungsten alloys are utilized in the production of premium jewelry and accessories due to their unique metallic luster and high density.

    5.Medical Devices: In medical devices—such as orthopedic implants and radiotherapy equipment—high-density tungsten alloys are selected for their excellent biocompatibility and strength.

    6.Military and Weapon Manufacturing: In military equipment, such as artillery shells and missile components, high-density tungsten alloys leverage their high density and strength to enable higher energy output and longer range.

    7.Precision Machinery: In the manufacturing of precision machinery—such as watches and precision instruments—tungsten alloys are used to fabricate critical components owing to their high precision and stability.

    8.Electronics Industry: In the electronics industry, high-density tungsten alloys, due to their high thermal conductivity, help enhance equipment performance and efficiency; they can be used to manufacture electronic components, heat sinks, and other supporting structures.

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    a2
    a3
    a4

    Parameter

    Mil-T-21014

    Rank

    Class 1

    Class 2

    Class3

    Proportioning

    90W7Ni3Fe

    92.5W5.25Ni2.25Fe

    90W6Ni4Cu

    Specific Weight(gm/cc;lbs/in3)

    17;0.614

    17.5;0.632

    17;0.614

    Hardness (RC)

    25

    26

    24

     Yield strength

    2% Deviation(PSI)

    120,000

    114,000

    110,000

    Ductility

    (% in1″)

    88,000

    84,000

    80,000

    Proportional elastic limit (PSI)

    10

    7

    6