CTIA’s TZM Alloy Fastener

1. What’s TZM Alloy Fastener?
TZM Alloy Fastener (Titanium Zirconium Molybdenum Alloy Fastener) is a high-temperature fastening component, including TZM bolts, nuts, screws, studs, washers, and pins, designed for fixing and connecting components in high-temperature, vacuum, and thermal cycling environments. CTIA’s TZM molybdenum alloy fasteners use molybdenum (Mo) as the matrix and incorporate titanium (Ti: 0.40%–0.55%), zirconium (Zr: 0.06%–0.12%), and carbon (C: 0.01%–0.04%) to form TiC and ZrC dispersion-strengthened phases. Manufactured through powder metallurgy processes, TZM fasteners provide excellent high-temperature strength, creep resistance, and structural stability, maintaining reliable connection performance during long-term high-temperature service.

2. Advantages of CTIA’s TZM Alloy Fastener
(1) Excellent high-temperature strength: Provides outstanding load-bearing capability, with room-temperature tensile strength reaching 600–900MPa and maintaining high strength above 1000°C, reducing the risk of softening and failure during high-temperature service.
(2) Excellent creep resistance: TiC and ZrC dispersion-strengthened phases improve creep resistance by effectively hindering grain boundary sliding at elevated temperatures, maintaining stable performance under long-term loading conditions (tensile strength approximately 500MPa at 1000°C).
(3) Excellent dimensional stability: With a high recrystallization temperature of approximately 1350–1450°C and a low coefficient of thermal expansion of approximately 5.5–5.9×10⁻⁶/K, it maintains dimensional accuracy during repeated heating and cooling cycles, reducing changes in fastening clearance.
(4) Excellent high-temperature vacuum performance: With a high melting point of approximately 2620°C, low vapor pressure, and stable high-temperature microstructure, it is suitable for long-term service in vacuum furnaces and high-temperature furnaces.
(5) Excellent precision machining capability: Supports the manufacturing of complex fastening structures through machining, including miniature threads, special geometries, and customized dimensions to meet high-precision assembly requirements.

3. Applications of CTIA’s TZM Alloy Fastener
CTIA’s TZM alloy fasteners are mainly used in: (1) furnace structure fixation in vacuum furnaces and high-temperature heat treatment equipment; (2) high-temperature component connections in semiconductor equipment; (3) assembly of high-temperature aerospace structural components; (4) heat-resistant fastening components in glass melting equipment and rare metal processing equipment; (5) industrial equipment requiring high-temperature strength and long-term reliable connections.

4. Specifications of CTIA’s TZM Alloy Fastener
CTIA supplies TZM alloy fasteners in various forms, including bolts, nuts, screws, studs, washers, pins, and custom-designed fasteners. Thread specifications, dimensions, and structural designs can be customized to meet the assembly requirements of high-temperature equipment.

With nearly 30 years of experience in molybdenum and molybdenum alloy manufacturing, CTIA GROUP has capabilities in TZM material development, powder metallurgy processing, and precision machining. Through strict control of alloy composition, sintering densification, and machining accuracy, CTIA supplies high-performance TZM fasteners, TZM plates, TZM rods, TZM customized components, and other molybdenum alloy products with non-standard customization available for reliable connections in high-temperature, vacuum, and thermal cycling environments.

For any inquiry, please contact molybdenum and molybdenum alloy manufacturer: CTIA GROUP

Email: sales@chinatungsten.com

Tel: 0086 592 5129696 / 0086 592 5129595

Website: www.molybdenum.com.cn

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