Description
TZM Alloy Tube – Finished Tube Specifications
The TZM Alloy Tube offered by Shaanxi Nickel Titanium Copper Metal Co., Ltd. is a high-performance molybdenum-based alloy tube engineered for extreme temperature, vacuum, and corrosive environments. Composed of titanium (0.5%), zirconium (0.08%), and carbon (0.01%) in a molybdenum matrix, this alloy—known as TZM (Titanium-Zirconium-Molybdenum)—demonstrates far superior strength, creep resistance, and stability compared to pure molybdenum.
ASTM B387 covers molybdenum and molybdenum alloy bar, rod and wire. For finished TZM tubes, agree the material route, outside diameter, wall thickness, tolerances, condition and inspection against the order drawing and purchase specification.
🔍 Key Features of TZM Alloy Tube
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Material reference: ASTM B387 TZM Type 364 identifies the powder-metallurgy alloy for bar, rod and wire; confirm the tube material route and finished-tube specification separately
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Composition: Mo-0.5%Ti-0.08%Zr-0.01%C
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High Strength at Elevated Temperatures: Maintains structural integrity above 1300°C
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Excellent Thermal Conductivity: ~125 W/m·K at room temperature
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Superior Creep Resistance: Up to 20x that of pure molybdenum
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Grain Stability: Resistant to recrystallization at high temperatures
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Machinability: Compatible with CNC, welding, EDM, and hot forming
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Vacuum Compatibility: Ideal for UHV (Ultra High Vacuum) systems
🧪 Chemical Composition (Typical)
| Element | Content (wt%) |
|---|---|
| Mo | Balance |
| Ti | 0.45 – 0.55 |
| Zr | 0.06 – 0.12 |
| C | 0.008 – 0.015 |
| O | ≤ 0.008 |
| N | ≤ 0.003 |
Each tube is vacuum arc melted (VAM) or powder metallurgy processed and analyzed via ICP-OES and LECO systems for full material traceability.
📐 Available Dimensions
| Parameter | Range |
|---|---|
| Outer Diameter | 3 mm – 120 mm |
| Wall Thickness | 0.5 mm – 10 mm |
| Length | Up to 2000 mm |
| Tolerances | Per the agreed tube drawing and purchase specification |
| Surface Finish | Bright, Pickled, Polished |
Cut-to-length services, thin-wall processing, and CNC contouring are available on request.
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Density | ~10.2 g/cm³ |
| Tensile Strength (RT) | ~750 MPa (Annealed) |
| Yield Strength (RT) | ~650 MPa |
| Elongation at Break | 10–20% |
| Hardness | ~200 HV |
| Recrystallization Temp | >1350°C |
| Melting Point | ~2620°C |
Unlike pure molybdenum, TZM does not deform under long-term thermal load, making it an ideal structural material for elevated-temperature zones.
🛠️ Manufacturing Process
Our TZM Alloy Tubes are produced via either:
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Vacuum Arc Melting (VAM): For high-purity, low-porosity applications
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Powder Metallurgy (PM): For fine-grained, dense structures
Followed by hot forging, extrusion, rolling, and heat treatment, each tube is ultrasonically tested, vacuum annealed, and cleaned to remove surface oxides. Final machining ensures dimensional accuracy and internal surface quality.
🔬 Applications of TZM Alloy Tube
The combination of high-temperature strength and vacuum compatibility makes TZM alloy tube an excellent material for:
🛰 Aerospace & Defense
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Rocket nozzle liners
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Heat shields
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Refractory containment tubes
🔥 Vacuum & Crystal Growth Furnaces
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Heating element sheaths
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Gas diffusion tubes
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Thermal isolation structures
⚛ Nuclear & Power Generation
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Fuel containment sleeves
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Molten salt reactor piping
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Heat exchanger elements
🧪 Scientific Equipment
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Vacuum chamber internals
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Hot zone structural parts
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Electron beam evaporation components
TZM is often the only viable material when pure molybdenum would otherwise deform or recrystallize under long-term thermal load.
📖 Relevant Standards & External References
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ASTM B387 – Molybdenum and Molybdenum Alloy Bar, Rod and Wire (material scope reference; finished tube requirements are agreed separately)
📦 Packaging & Shipping
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Individually wrapped with anti-oxidation paper
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Protective PVC or foam tubing for OD/ID protection
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Export-grade wooden crates with shock absorption
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Air freight, express, and sea freight options available
Every order includes a complete Mill Test Certificate (EN10204 3.1), and optional SGS, RoHS, or REACH certification can be provided on request.
For a tube quotation, send the outside diameter, wall thickness, length, quantity, drawing, material condition and inspection requirements. Review the operating atmosphere together with temperature, load and exposure time when selecting the material for high-temperature service. Browse the molybdenum materials category and the purchasing guide.
📞 Contact Us
Shaanxi Nickel Titanium Copper Metal Co., Ltd. specializes in refractory metal solutions. Our TZM Alloy Tubes are engineered for precision-critical applications and come with comprehensive documentation and global shipping support.
📧 Email: sales@niticu.com
📱 Phone / WhatsApp / WeChat: +86 13335373172
🏭 Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi, China
🌐 Website: https://niticu.com
📩 Contact us today to request a quote, datasheet, or custom drawing. We respond within 24 hours.
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