Solutions that bring changes.
The GRAPH-HEX® product line offers high-performance carbon solutions for the most diverse processes across the foundry and steel industry.
Graphex 8.
High-purity crystalline graphite manufactured for injection applications requiring ultra-low sulfur material.
Graphex 18.
Economical low-sulfur carbon additive, an effective alternative to high-priced carbon additives.
Graphex 480.
High-purity crystalline graphite for injection applications requiring ultra-low sulfur performance.
Refined Products for Enhanced Metallurgical Processes.
At Larpen Metallurgical Service, we take pride in offering a wide array of products under our esteemed GRAPH-HEX® brand, each meticulously crafted to meet the diverse needs of the metallurgical industry. Navigate through our extensive product range, designed with precision and a commitment to quality, ensuring optimal solutions for your specific applications.
Low Sulfur Pet Coke:
Optimizing Charge Carbon for Gray Iron Casting
Tailoring Petroleum Cokes for Diverse Applications
Larpen Metallurgical Service produces a spectrum of low to medium sulfur petroleum cokes, with sulfur content ranging from 0.35% – 4.0%. These products are meticulously crafted to serve as a charge carbon for gray iron casting, ensuring optimal performance and quality in each application. Our low sulfur pet coke not only adheres to stringent quality standards but also ensures that your casting processes are conducted with enhanced efficiency and reliability.
Silicon Carbide:
Distributing Superior Quality Carbolon MA
Ensuring Premium Quality with Carbolon MA 90% Silicon Carbide
As a distributor of Carbolon MA 90% silicon carbide from Washington Mills, Larpen Metallurgical Service stands at the forefront of providing premium quality materials for your metallurgical needs. Silicon Carbide, known for its stability and robustness, ensures you are equipped with materials that promise excellent performance, durability, and efficiency in various metallurgical applications. Trust in Larpen to provide you with silicon carbide products that elevate your processes and outcomes.
Creating long-term value for our partners.
Family-owned for over 60 years — a direct line from operations to leadership.
ISO-certified quality systems and consistent batch-to-batch performance.
Carbon products
Years of service
Operating facilities
Fixed carbon (typ.)
Download Technical PDFs.
Detailed specification sheets and the complete GRAPH-HEX® brochure are available for download from our institutional area.