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Machined Graphite Furnace Spares

Graphite Bolts

Graphite bolts, nuts and fasteners for vacuum furnace hot zone assembly. Non-corrosive, non-contaminating at temperatures to 2200°C. Machined from isostatic graphite to metric and custom thread specifications.

Custom sizes OEM accepted
Graphite Bolts
Product overview

What Are Graphite Bolts?

Graphite bolts are special fasteners made from graphite, a type of carbon material. Most people are used to seeing metal bolts made of steel or iron. But in some industries, especially those with very high temperatures or harsh chemicals, metal bolts can get damaged. That’s when graphite bolts are used.

Graphite bolts are lightweight, strong, and heat-resistant. They are used in places where regular bolts would melt, rust, or break. You can find graphite bolts in industries like metallurgy (metal processing), electronics, and chemical factories.

Where Are Graphite Bolts Used?

Graphite bolts are mostly used in:

  • High-temperature furnaces
  • Chemical plants with acids and strong liquids
  • Vacuum and special gas chambers
  • Electronics and semiconductor production

They are perfect for jobs that need bolts to stay strong in heat, not rust, and not wear out easily.

How Do Graphite Bolts Work?

Graphite bolts have threaded ends, just like metal bolts, to screw and hold things together. They can also be made in different shapes and sizes depending on what the customer needs. These bolts are often used in machines that get very hot, where metal bolts would fail.

Since they are made of graphite, they are not only resistant to heat but also to chemicals and corrosion. They also don’t expand or shrink too much with temperature changes, so they stay tight and secure.

Why Use Graphite Bolts Instead of Metal Bolts?

  1. High Heat Tolerance
     Graphite bolts can handle heat up to 3000°C. Metal bolts would melt or become soft at much lower temperatures.

  2. Chemical Resistance
     In places with strong acids or bases, metal bolts rust or corrode. Graphite bolts stay strong and clean.

  3. Long Life
     Graphite bolts last longer in tough conditions because they don’t wear out quickly.

  4. Low Weight
     They are much lighter than metal bolts, making them easier to install or replace.

  5. Smooth and Low Friction
     They don’t cause damage to other parts when in use. This also helps machines run more smoothly and quietly.

5 Simple Advantages of Graphite Bolts

  1. Can handle very high temperatures
  2. Do not rust or corrode easily
  3. Last a long time even in harsh conditions
  4. Lightweight and easy to work with
  5. Good for smooth and quiet operation

 

Why Expo Advanced Materials
TOYO TANSO Japan authorised partner — premium isostatic graphite grades with full raw-material traceability
Qualified supplier to SECO/WARWICK — supplying graphite components to their global vacuum furnace operations
Full MTC + dimensional inspection report with every shipment
Custom machined to your DXF, STEP, PDF or IGES drawings within 2–4 weeks
ISO 9001:2015 certified | Export to 16+ countries | 24-hour quote turnaround

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Pricing & lead time within 24 hours

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ISO 9001:2015
Certified
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16+ Countries
Export ready
⚙️
Custom OEM
Any spec
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Test Certs
Supplied
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