Pure Molybdenum Stud Bolt For Vacuum Furnace
Pure Molybdenum Stud Bolt For Vacuum Furnace

Pure Molybdenum Stud Bolt For Vacuum Furnace

The Pure Molybdenum Stud Bolt for Vacuum Furnace is widely used in vacuum furnaces, glass production, military, and aerospace industries. It is mainly used to secure heating elements, insulation layers, and sealing devices, ensuring stable operation in high-temperature equipment. This bolt is an essential fastener for extreme heat environments.
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Products Description

 

The pure molybdenum stud bolt for vacuum furnaces is made of high-purity molybdenum material, usually with a purity of 99.95%. It has a high melting point (2620°C) and good high-temperature stability, so it can maintain its shape and strength in extreme heat. The size range of this bolt is typically M2 to M24, and it comes with various surface treatments, such as chemical cleaning and polishing.

 

Because molybdenum studs have the ability to withstand extremely high temperatures without changing shape, expanding or softening significantly, they are ideal for high strength and high temperature applications that are shielded from oxygen.


Molybdenum studs find their way into high temperature vacuum furnaces, glass production, military and space applications where oxygen is not present.

 

Molybdenum Specifications: ASTM B386, ASTM B387, Type 361.

 

features

 

 

Excellent High-Temperature Performance: Molybdenum has an extremely high melting point (2620°C) and maintains high strength and stability in high-temperature vacuum environments. Even at 1600°C, molybdenum bolts do not deform, expand, or soften.

Strong Oxidation Resistance: In vacuum or inert gas environments, molybdenum bolts resist oxidation effectively. However, in air, they oxidize rapidly above 600°C, so they are mainly used in oxygen-free conditions.

Low Thermal Expansion: Molybdenum has a low thermal expansion rate, meaning it does not deform significantly under heat, ensuring stable mechanical structures.

High Mechanical Strength: Molybdenum bolts retain high strength even at high temperatures, with a tensile strength of up to 94 ksi, allowing them to withstand heavy loads.

Good Corrosion Resistance: Molybdenum resists many chemicals well, especially in high-temperature environments, making it highly durable.

 

 

applications

 

 

Key Component in Vacuum Furnaces: In high-temperature vacuum furnaces, molybdenum bolts are used to secure heating elements, insulation layers, and reflectors. Thanks to their heat resistance and corrosion resistance, they ensure strong connections and stable operation inside the furnace.

Sealing Applications: These bolts are also used in vacuum furnace sealing systems to maintain airtightness between the furnace body and accessories. Their high-temperature performance prevents gas leaks, keeping the vacuum environment intact.

Position Adjustment & Control: Molybdenum bolts help adjust and fix the position and angle of heating elements, ensuring even heating of samples and precise high-temperature experiments.

Glass Manufacturing: In glass fiber production, molybdenum bolts hold high-temperature parts like molybdenum plates, withstanding extreme heat from molten glass.

Military & Aerospace Use: Due to their excellent heat resistance and mechanical stability, molybdenum bolts are widely used in military and aerospace applications, such as high-temperature equipment and structural components.

 

 

 

Specification

 

Item

Pure molybdenum bolt/screw

Grade

Mo-1

Specification range

Dia(0.8~100mm) x L

Purity

Mo≥ 99.95%

Density

10.2g/cm3

Surface

Black or bright

Surface gloss

Silvery grey metallic luster

Standard

ASTM B387

Application

Electric light source parts, heat shield, heat bodies in high temperature furnaces,

sputtering target, and medical facilities, etc.

 

FAQ

Are you a factory or 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 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 Pure Molybdenum Stud Bolt For Vacuum Furnace?

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 is kind of the package?

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

What is the lead time?

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

What are molybdenum stud bolts used for?
A: They're mainly used in vacuum furnaces, glass production, and aerospace applications to secure high-temperature components like heating elements and insulation layers.

Why choose molybdenum for high-temperature applications?
A: Because molybdenum has:

Extremely high melting point (2620°C)

Excellent heat resistance (works well even at 1600°C)

Low thermal expansion

High strength in hot environments

Can molybdenum bolts be used in normal air?
A: No, they oxidize quickly above 600°C in air. They work best in vacuum or inert gas environments.

What sizes are available?
A: Standard sizes range from M2 to M24. Custom sizes can often be made.

How strong are molybdenum bolts?
A: They maintain high strength at high temperatures, with tensile strength up to 94 ksi (about 650 MPa).

Do they need special surface treatment?
A: Yes, common treatments include chemical cleaning and polishing to improve performance in vacuum environments.

Are these bolts reusable?
A: Yes, if carefully removed and inspected for damage. However, repeated heating cycles may affect performance.

How do they compare to other high-temperature bolts?
A: Molybdenum bolts outperform most alternatives (like stainless steel or nickel alloys) in extreme heat, but are more expensive.

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