
Specialty Graphite
Premium Specialty Graphite for Industrial and OEM Applications
High-Performance Graphite Rods, Blocks, and Rounds — Delivered with Precision
MBI Graphite supplies premium-grade synthetic graphite for industries that demand high thermal resistance, dimensional stability, and reliable performance in harsh environments. Our fine-grain graphite feedstock is engineered to meet the needs of machining operations, heat treatment, foundries, and specialty manufacturers.
With fast delivery, a range of grades and sizes, and a responsive support team, we are your one-stop source for custom and stock graphite solutions.

Why Choose MBI for Specialty Graphite?
Wide Range of Grades & Sizes
We supply a complete line of carbon and graphite materials for aluminum smelters, including:
- Cathode Blocks – Vibrated and extruded options available in anthracite, graphitic, and fully graphitized forms
- Graphite Sidewall Blocks
- Carbon Sidewall Blocks – Anthracite, precision-milled on all six sides
High Purity. Reliable Performance.
Synthetic graphite offers:
- Resistance to thermal shock and chemical corrosion
- Exceptional dimensional stability
- Low thermal expansion
Proven Industry Use
Used in:
- Molten metal reinforcement and thermal shielding
- Graphite machining
- OEM production
- Heat treating
- Glass, chemical, and aerospace industries
Experienced, Cost-Effective Supply
We’ve supported the Iron, Steel, and Aluminum sectors for 30+ years with reliable graphite supply — competitively priced and backed by expert service.
Our Specialty Graphite Grades
We offer a range of proprietary and standard graphite grades to support varying thermal, mechanical, and machining requirements.
- Grade MBG
- Grade MBJ
Have detailed application requirements?
Our Specialty Graphite Solutions
Graphite Rods
- Pre-formed and ready to machine
- Ideal for degassing tubes, pump shafts, impellers
- Diameters from 3″ to 6″
- High-grade, fine-grain stock with excellent strength and finish
Graphite Blocks
- Medium-grain blocks in standard and extra-large sizes
- ISO-molded options for high precision
- Suitable for machining, casting, and high-temp components
Graphite Rounds
- Supplied up to 60″ in diameter
- Ideal for specialized machining and OEM requirements
- Engineered to meet customer-specific grade and dimension needs
Need Help Choosing the Right Material?
We’ll help you identify the best graphite type and grade for your project — whether you’re casting, machining, insulating, or reinforcing.