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  6. The strongest niobium alloy Nb-521

The strongest niobium alloy Nb-521

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Niobium Nb-521 (Nb-5W-2Mo-1Zr)

last updated:Jan 20, 2026

樋口経済企画研究所
樋口経済企画研究所
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It demonstrates its capabilities from the aerospace industry to next-generation nuclear power plants.

In the ultra-high temperature range, C-103 is used in niobium alloys. Nb-521 is an excellent rare metal product that improves upon its performance.

    SteelParts and Materials
Nb-521 20260120.jpg

The strongest niobium alloy Nb-521

Nb-521 20260120.jpg
Nb-521 20260120.jpg
  • Related Link - https://hepi-llc.jp

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basic information

Nb-521(Nb-5W-2Mo-1Zr)

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Applications/Examples of results

- "Thrust chamber (combustion chamber) of the main engine and attitude control engine" - "Nozzle extension (nozzle skirt)" - "Next-generation nuclear plant piping (such as molten salt reactors)"

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樋口経済企画研究所

樋口経済企画研究所

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Our company supports the foundational industries that sustain the Japanese economy. - In manufacturing, sourcing materials has become critical. There are special materials that are difficult to obtain in small lots. We negotiate directly with major overseas companies to provide any special materials quickly. [Titanium, Zirconium, Tantalum, Niobium, Tungsten, Molybdenum, and their alloys] - These are functional components that ensure product performance and reliability. We provide reliable functional components developed through research and collaboration with overseas partners, delivered in a short time and at low cost. [Split roller bearings, reducers, and increasers] - We offer stirring technology that is essential in various plants. We propose optimal stirring conditions tailored to the customer's process. [Stirrers, stirring simulations, magnetic drives, bottom stirring] - We provide ultra-large forged products in a short time. We guarantee forging quality through free forging using one of the world's largest forging facilities. [Roll mills, forged flanges, wind power generation components] - Special attachments that excel in civil engineering demolition and disaster recovery work. They replicate human movement through rotation from the arm.

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