Phone: 814-781-8514
Fax: 814-781-8570

Please visit: Mersen

Mailing Address:
215 Stackpole St.
Saint Marys, PA 15857 US

A Special Message from Mersen

Company Profile

Shaping the future of EDM Graphite

North America’s largest producer of specialty graphite has a new name to go along with its storied history...Mersen. Over the years, you've known us as Carbone and prior to that Stackpole. Today, as Mersen, we offer a complete line of world class iso-static graphite covering the entire EDM consumables spectrum, from roughing to ultra-fine finishing. Mersen is a global company with the resources and commitment to develop new graphite innovations... and shape the future of EDM machining.

A Rich EDM Machining History

Mersen has earned a reputation around the world as an innovative and dependable producer of the highest quality isostatic graphite for Electrical Discharge Machining. In fact, many years ago, we were one of the first manufacturers to develop a special grade of graphite specifically for EDM machining. Our Graphite Materials Division, located in St. Mary’s, PA, has been producing carbon and graphite products for almost 100 years and EDM graphite for more than 50 years. The talented St. Mary’s engineering and manufacturing team have both the experience and expertise required to help you solve any EDM graphite challenge.

Product Categories of Mersen

  • Carbon, Alloy & Free Machining Steels
  • EDM Tooling
  • Electrode Materials, EDM Wire, & Supplies

Trade Names

  • ELLOR®

Deep Links

DARKSTAR - An Innovative Solid and Liquid Particle Designed for the Most Demanding EDM Applications

Mersen has developed an ultra-fine grain graphite that not only performs in the EDM process equivalent to anything currently available, but is readily machinable.

Product Announcements Provided By Mersen

New Copper-Impregnated, Ultra-Fine Grain EDM Graphite Ideal for Severe EDM Applications and Difficult Alloys

As seen in MMS

Particle Designed to Handle Demanding EDM Applications
Mersen USA has released the DarkStar particle, a carbonaceous particle designed for demanding EDM applications.

EDM Graphite Catalog Features Range of Grades
The latest brochure from Mersen details the company’s complete line of EDM graphite, from universal to micro-grain grades.