Molybdenum Bolts
Weight Range ： 0.5g–500kg
Dimensional tolerance ： ±0.05mm
Molybdenum Bolts provide metric thread specifications from M2 to M20, covering various head types such as internal hexagon, external hexagon, pan head and countersunk head. These bolts strictly maintain a dimensional tolerance of ±0.05mm to ensure accurate assembly even in high temperature and high pressure environments. Their excellent high temperature resistance makes them the core connecting components of semiconductor manufacturing equipment and vacuum furnaces, maintaining stable mechanical properties under extreme working conditions.
These bolts are basically formed in a sintered state, then forged to increase the density of the material, and finally precision machined to their final dimensions. The surface treatment stage provides chemical cleaning to remove impurities, electrolytic polishing to achieve an ultra-smooth surface, and special coatings to enhance oxidation resistance. The complete process chain ensures that the product maintains low outgassing rate and high structural stability in high-temperature vacuum environments, perfectly meeting the stringent requirements for material reliability in the aerospace and nuclear energy industries.
Parameter
JOYEAR offers clients all over the world high-volume, highly effective export solutions for industrial components. We craft our custom metal products with skill. Our skilled team will accurately create tangible parts that meet your requirements if you send us your design files, whether they are digital drafts or prototypes.
|
Thread Tolerance |
±0.05mm |
|
Metric Thread |
M2 - M12 |
|
Service Temperature |
≤ 1800°C |
|
Surface Treatment |
|
|
Weight |
0.5g - 500kg |
★ Our product range includes:
► Materials: Carbon steel / Mild steel / Structural steel / Stainless steel / Aluminum / Copper, etc.
► Forms: Sheets / Profiles / Tubes / Round bars / Flat bars / Square bars, etc.
Drawing Design & Confirm
Obtain drawings from clients or produce drawings using their samples or specifications.
Both parties attest to the drawings, product raw materials, surface treatment, and other specifics.
Advantages
Extremely low thermal expansion coefficient
Molybdenum has a very low coefficient of thermal expansion. Approximately 5.4 x 10⁻⁶/K (20-500°C range). This value is only one-third that of ordinary steel.
Therefore, the dimensions of molybdenum bolts remain almost unchanged when the temperature changes drastically. It can effectively reduce the thermal stress generated when joining different materials.
This prevents components from becoming deformed or damaged. This property is critical in optical systems and semiconductor devices.
Excellent Thermal Conductivity
Molybdenum conducts heat very effectively. It has a high thermal conductivity of approximately 138 W/(m·K) at room temperature. This property gives it a clear advantage over many alloy steels.
In application, a molybdenum bolt rapidly transfers heat away from the contact points between connected components. This action prevents the formation of dangerous localized hot spots.
For high-temperature heaters and electronic packaging, this capability helps maintain a uniform temperature field. Ultimately, it extends the service life of the entire equipment.
Extremely high elastic modulus
Molybdenum has a high elastic modulus. reaches about 320 GPa. This is more than 1.5 times that of structural steel. Therefore, molybdenum bolts deform very little when stressed.
It provides a very rigid connection. Even under huge static loads, deformation can be controlled at the micron level. This is crucial to ensure the stability and accuracy of precision equipment.
Excellent strength-to-weight ratio
Although molybdenum is denser, its extremely high strength results in an excellent strength-to-weight ratio. Its room temperature specific strength is superior to many high temperature alloys.
In the aerospace field, when a component needs to operate above 800°C and space is limited, using a small-sized molybdenum bolt can provide the same connection strength as a larger, heavier superalloy component, thereby enabling a lightweight design of the system, which is critical for the thrust-to-weight ratio and payload of the aircraft.
Price & Order
Give a quote, verify the order quantity, and include all pertinent details.
such as terms of trade, terms of payment, type of packaging, etc.
why choose us
High temperature resistance
The melting point is as high as 2620°C, far higher than ordinary alloys, and it can maintain performance at high temperatures of 1800°C.
Corrosion resistance
Resists molten metal erosion, has a lifespan far longer than heat-resistant steel, and reduces maintenance costs.
Creep resistance
It can still maintain its shape above 1000°C, ensuring connection stability under long-term high temperatures.
Good conductor
It has excellent electrical conductivity and is ideal for both fastening and conducting electricity.
Production & Shipping
Follow the original drawings and samples exactly when producing the goods.
Following a last check, it was carefully packaged and sent to the clients.
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