How to Properly Install and Maintain Molybdenum Bolts for Maximum Longevity

Molybdenum Bolts

Molybdenum bolts are a type of fastener that can withstand extreme temperatures and pressures, making them ideal for heavy-duty applications such as aerospace, oil drilling, and nuclear power plants. However, like any other mechanical component, molybdenum bolts require proper installation and maintenance to ensure their maximum longevity. This blog post will discuss the steps involved in properly installing and maintaining molybdenum bolts.

What is Molybdenum Bolts?

Molybdenum bolts are fasteners made from a refractory metal known as molybdenum. These bolts have high strength, excellent corrosion resistance, and superior temperature stability. Compared to other metals like stainless steel or alloy steels, they offer up to 30% higher strength and good creep resistance at elevated temperatures up to 800°C. Molybdenum bolts are common in components where exceptional performance is required, such as in the aerospace industry for jet engines fuel systems and structural components where a combination of weight savings, fatigue resistance, and heat tolerance is essential. Other industries that utilize molybdenum bolts include automotive engineering for exhausts and turbochargers due to their superior heat-resistant properties; petrochemical plants using them due to corrosion resistance from harsh chemicals; medical equipment due to their biocompatibility; energy generation plants because of thermal stability; nuclear reactors because of radiation shielding; among.

Steps to Properly Install and Maintain Molybdenum Bolts for Maximum Longevity

Step 1: Choose the Correct Molybdenum Bolt

Before installation, choosing the right molybdenum bolt for the job is important. Molybdenum bolts come in a variety of sizes, grades, and configurations. Ensure that the bolt you choose is appropriate for the application at hand. Consult a supplier or engineer if you need help deciding which bolt to select.

Step 2: Install the Bolt Correctly

Improper installation can cause bolts to fail prematurely, leading to costly repairs and potential safety hazards. Before installation, ensure that the bolts are clean and debris-free. Also, ensure that the bolt threads are lubricated with a compatible lubricant. Molybdenum bolts must be torqued to the appropriate specification to achieve optimal performance and to avoid over-stretching or under-torqueing the bolt.

Step 3: Inspect for Damage and Wear

Periodic inspection is a necessary part of maintaining molybdenum bolts. Check for any damage or wear on the bolts, including corrosion, rust, and deformation. Replace any damaged bolts immediately to avoid potential failures.

Step 4: Perform Preventative Maintenance

Preventative maintenance can help prolong the life of your molybdenum bolts. It involves lubricating and tightening the bolts regularly, checking for proper torque, and ensuring they are corrosion-free. Proper maintenance can help you avoid costly repairs and downtime.

Step 5: Handle with Care

Molybdenum bolts are strong and durable but can still be damaged if mishandled. Handle them carefully to avoid nicking, scratching, or other types of damage that could lead to premature failure. If you drop a molybdenum bolt or need to transport it, place it in a padded container to avoid damage.

How to Maintain Molybdenum Bolts?

Molybdenum bolts should be inspected regularly for signs of wear or damage. If any damage is found, the bolt should be replaced immediately. To maintain molybdenum bolts, it is important to take certain precautions:

Molybdenum bolts must be regularly inspected for any signs of corrosion or deterioration.

You should always ensure the bolt has been tightened correctly and not over-tightened, as this can cause damage. You should also lubricate the threads of your molybdenum bolts periodically with a suitable oil or grease to reduce wear and tear and prolong the life of your bolt.

Check periodically for any loosening due to vibration or settling to avoid issues down the line.

The bolts should be lubricated periodically with oil or grease to prevent corrosion.

Following these steps will help keep your molybdenum bolts functioning properly for years to come!


Following the steps outlined above can help you properly install and maintain your molybdenum bolts, ensuring they last for many years. Proper installation, inspection, and maintenance can help you avoid costly repairs and potential safety hazards. Make sure to choose the correct bolt for the job, lubricate and torque the bolts correctly, perform regular inspections and preventative maintenance, and handle the bolts carefully. With these tips, you can ensure the longevity of your molybdenum bolts.

We touch the lives of millions of people across the world every day with the steel that we produce.



Copyright © 2024 SPECIAL METALS. All Rights Reserved.