TZM Alloy

TZM (Titanium-Zirconium-Molybdenum) Alloy: Superior Performance, Leading High-Temperature Applications

TZM alloy (Titanium-Zirconium-Molybdenum alloy) is a molybdenum-based alloy produced through powder metallurgy or vacuum arc-melting processes. It is formed by adding small amounts of titanium (~0.5%), zirconium (~0.08%), and traces of carbon (~0.01-0.04%), resulting in a dispersion-strengthened high-temperature molybdenum-based alloy. Compared to pure molybdenum, TZM material utilizes the dual effects of solid solution strengthening and carbide dispersion strengthening to significantly improve its high-temperature strength, recrystallization temperature, creep resistance, and hardness. Simultaneously, it retains the inherent advantages of molybdenum, such as a high melting point, high thermal conductivity, and a low coefficient of thermal expansion. This makes TZM molybdenum alloy an ideal structural material for extreme high-temperature and high-stress environments.

Core Performance Advantages of TZM Molybdenum Alloy

1. Excellent High-Temperature Strength: TZM alloy maintains considerably high strength and hardness at temperatures up to 1300°C and even higher, performing significantly better than pure molybdenum and some other high-temperature alloys.
2. High Recrystallization Temperature: Its recrystallization temperature is typically around 1400°C, approximately 250-300°C higher than that of pure molybdenum. This means the material resists softening and maintains structural stability when used at higher temperatures.
3. Superior Creep Resistance: Under high temperatures and prolonged stress, TZM alloy exhibits better resistance to plastic deformation, making it suitable for long-term load-bearing high-temperature components.
4. High Thermal Conductivity and Low Coefficient of Thermal Expansion: It inherits molybdenum’s excellent thermal conductivity, aiding in rapid heat dissipation. Its low coefficient of thermal expansion ensures good dimensional stability and low thermal stress during drastic temperature changes.
5. Good Machinability: Compared to pure molybdenum, TZM alloy offers better ductility and workability (e.g., forging, rolling, machining) under certain conditions, although processes suitable for refractory metals are still required.
6. Good Corrosion Resistance: It demonstrates good resistance to certain molten metals (like liquid zinc), molten salts, and inert gases.

We can supply TZM alloy products in various specifications and forms according to customer requirements, primarily including:

• TZM Rod: Wide range of diameters, used for manufacturing fasteners, shafts, electrodes, etc.
• Plates / TZM Sheet: Various thicknesses available, suitable for heat shields, furnace structural parts, sintering boats, etc.
• Wires: Used for heating elements in high-temperature furnaces, springs, etc.
• Tubes: Customizable dimensions, used in heat exchangers, piping systems, etc.
• Forgings: Customized according to drawings, used for high-strength, complex-shaped components.
• Custom Parts: Precision machining according to customer-provided drawings and requirements for various non-standard parts.

Surface Finish: Available in various surface conditions, including as-sintered/black, chemically cleaned, alkali washed, ground, and polished.
Applicable Standards: Products typically comply with relevant standards such as ASTM B386/B387 (Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, Foil / Bar, Rod, Wire), or can be produced according to specific customer requirements.

TZM Metal Typical Application Fields

Owing to its outstanding high-temperature properties, TZM alloy is widely used in the following fields:

• Aerospace Industry: Rocket engine nozzles, throat liners, gas rudders, missile components, aircraft thermal protection structures, etc.
• High-Temperature Furnace Industry: Heating elements, heat shields, supports, trays, sintering boats, hearth plates, guide rails for vacuum and protective atmosphere furnaces.
• Electronics and Semiconductor Industry: Components for ion implantation equipment, electron tube grids, anodes, sputtering targets, etc.
• Mold Manufacturing: Cores, inserts, and sprue bushings for aluminum, magnesium, and zinc alloy die-casting molds; hot isostatic pressing (HIP) molds; high-temperature hot working dies.
• Glass Melting Industry: Electrodes, stirrers, channels, and other components in contact with high-temperature molten glass in glass furnaces.
• Nuclear Energy Industry: Structural materials for high-temperature reactors.
• Medical Field: Used as X-ray targets or radiation shielding materials.

TZM Alloy Properties

With its unparalleled high-temperature strength, excellent creep resistance, and high recrystallization temperature, TZM alloy has become an indispensable key material in numerous cutting-edge industrial sectors. We are committed to providing high-quality TZM alloy products in various specifications and can offer customized solutions based on your specific application needs. If you are seeking a high-performance material capable of reliable operation under extreme conditions, TZM alloy is your ideal choice. Please contact us for more detailed product information and technical support.

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