Description Of TZM Parts

TZM alloy refers to a molybdenum-based alloy containing 0.5% Ti, 0.08% Zr, and 0.02% C. Compared with pure molybdenum, TZM alloy has higher room temperature and high temperature strength. In addition, the recrystallization temperature of TZM alloy is also higher than that of pure molybdenum, with the starting and ending recrystallization temperatures of TZM alloy increased by 500 ℃ and 450 ℃ compared to pure molybdenum.

The main reason why the performance of TZM alloy is higher than that of pure molybdenum is that the added elements undergo second-phase strengthening in the alloy, resulting in improved alloy performance. Adding these small amounts of metal elements to molybdenum greatly improves the mechanical properties of the alloy at both room temperature and high temperature, while also expanding the application areas of the alloy.

The mechanical properties of TZM alloy, such as elongation, elastic modulus, yield strength, tensile strength, and fracture toughness, are superior to pure molybdenum, which is conducive to processing. Therefore, TZM alloy can be processed into different shapes of shaped parts and applied in different fields. In addition, TZM alloy has excellent welding performance and can be welded with other materials.

Manufacturing process chain of TZM alloy parts

① Vacuum consumable arc melting → ② Forging/rolling → ③ Heat treatment (stress relief + annealing) → ④ Finishing → ⑤ Surface treatment (polishing/coating/etching).
• Powder metallurgy: powder mixing → cold isostatic pressing → sintering → hot rolling → annealing, suitable for large-size near-net forming, 15–25% lower cost.

Features of TZM Parts

Excellent High-Temperature Performance:
TZM alloy has a melting point of 2610°C and can work long-term at 1200°C–1800°C. Its recrystallization temperature is about 1400°C, which is 250°C higher than pure molybdenum. Even at high temperatures, it maintains high strength and creep resistance.

High Strength:
At 1500°C, its tensile strength is 30%–50% higher than pure molybdenum. Above 1300°C, TZM is twice as strong as pure molybdenum.

Strong Corrosion Resistance:
It resists molten metals (like copper and aluminum), non-oxidizing atmospheres (H₂, Ar), and some acids and alkalis well.

Good Weldability:
TZM alloy has better welding performance because its grain structure and the formation of TiC/ZrC at grain boundaries prevent excessive grain growth.

Low Thermal Expansion:
Its linear expansion coefficient is 5.8×10⁻⁶/K, close to that of steel molds. This reduces thermal stress and lowers the risk of deformation.

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Applications of TZM Parts

High-Temperature Processing:
TZM alloy is widely used to make die-casting molds and cores for aluminum, copper alloys, cast iron, and iron-based alloys. It is also used for hot extrusion tools for stainless steel and piercing plugs for seamless steel tubes. For example, in photovoltaic glass rolling production lines, TZM alloy molds can withstand 1100°C–1300°C and last for 3000–5000 continuous rolling cycles.

Aerospace Applications:
TZM alloy is used to make rocket nozzles, gas pipelines, and throat liners for propulsion systems.

Nuclear Energy Equipment:
It is suitable for radiation shields, support frames, and heat exchangers in nuclear reactors.

Electronics & Electrical Engineering:
TZM alloy is used in high-voltage rectifiers, thin-film semiconductor ICs, electron tube cathodes, grids, and CT scanner X-ray tube targets.

Glass Manufacturing:
It is ideal for glass furnace stirrers and outlet nozzles due to its heat resistance.

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Specification Of TZM Parts

Form	Size range	Tolerance	Surface	Customization capability
Plate	0.5–50 mm × ≤1500 mm × ≤3000 mm	±0.1 mm	Polished/alkali washed/rolled black	Laser cutting of special shapes is possible
Rod	Ø4–100 mm × ≤2000 mm	h7–h11	Turning/centerless grinding	Deep hole drilling Ø0.5×L/D=20 possible
Tube	Ø6–500 mm × Wall thickness 1–30 mm	±2 %	Internal honing Ra 0.4 µm	Threading and flanges are possible
Special-shaped parts	According to the drawings	±0.02 mm	Polishing/coating	5-axis CNC, wire cutting

Testing

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Packing

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FAQ Of TZM Parts

Are you a factory or a manufacturer?

A: Yes, we are a factory, but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method?

A: Generally, we send cargo by UPS, DHL, or FedEx. Also, we can send by sea to a seaport or by air to the closest airport.

Why is your product so cost-effective?

A: We cut out the middlemen in the end-to-end manufacturing process, and we obtain raw material directly from its source.

Do you do spot quality inspection or full inspection?

A: 100% full inspection for sure. All unqualified products are discarded.

How do you ensure your lead time?

A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of TZM Parts?

A: Depends on quantity; generally, no MOQ limit.

How to pay for it?

A: A bank transfer (T/T) will be acceptable.

What is the delivery time?

A: around 7-20 days, which depends on the quantity and production.

What kind of package is it?

A: Generally, we use a carton case or a plywood case with protective material inside to ensure the safety of the cargo

What is the lead time?

A: From the order placed to cargo receiving will take around 10-25 days.

What is TZM alloy?

TZM (Titanium-Zirconium-Molybdenum) is a high-performance molybdenum-based alloy. It contains small amounts of titanium (Ti) and zirconium (Zr), which improve its strength and heat resistance.

What are the key properties of TZM?

Extremely high melting point (2610°C)

Excellent strength at high temperatures (up to 1800°C)

Good creep resistance and thermal stability

Strong corrosion resistance to molten metals and gases

Low thermal expansion, close to steel

Why choose TZM over pure molybdenum?

TZM has better strength, weldability, and heat resistance than pure molybdenum, especially above 1300°C.

Can TZM parts be machined easily?

Yes, but it requires specialized tools due to its hardness. Machining is best done before final heat treatment.

What is the maximum working temperature for TZM?

It can operate long-term at 1200°C–1800°C, depending on the environment.

Is TZM corrosion-resistant?

Yes, it resists molten metals (like copper/aluminum) and non-oxidizing gases (H₂, Ar). However, it oxidizes in air above 600°C, so protective coatings may be needed.