Over 50 Years Exceeding Customer Expectations

An ISO-9001: 2015 Company

Experts in the Industry

You are experts in your industry, and we are experts in ours. Together, we can create custom solutions to meet your goals, budget, and expectations.

Client Consultations

Our expert client consultations produce specialty pieces. No matter how unique the application, we go straight from sketch to three-dimensional solution.

Huge Inventory

Our huge inventory of raw materials, grades, shapes, and sizes allows us to respond quickly to customer demands, so that we can begin machining your product immediately.

Recycle With Us

Put some green in your pocket by going green with your obsolete carbon and graphite materials! Recycle with us, and you will reduce your liability and your ecological footprint.

Carbon and Graphite Machining and Recycling Facility - Semco Carbon

Custom Carbon & Graphite Machining

Fifty Years of Experience

Our custom carbon and graphite machining capabilities are engineered from the ground up with our client's budget, goals, and expectations in mind. No matter the tolerance, no matter the finish, no matter how specific your need, our years of experience coupled with the most advanced machining resources will keep your organization humming with minimal delay. We aren’t just experts in carbon and graphite machining—we’re also experts in client consultation and collaboration. We’re in the business of creating solutions, no matter how unique the problem.

Carbon & Graphite Material Recycling

We’ll purchase your obsolete carbon and graphite materials for reclamation or proper disposal. Less waste in the landfill, more green in your pocket — just the kind of win-win solution we’re in the business of creating.

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Experience. Knowledge. Service.

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Custom Carbon & Graphite Machining

14 Aug

Graphite Property: Thermal Shock

In business, as in many other parts of life, there really is no replacement for experience. The schooling and enthusiasm of the apprentice is no match for the master’s depth of knowledge acquired from long experience. At Semco, not only do our graphite specialists have deep personal experience in the field, but our decades of custom machining graphite material have helped to build great institutional memory that gets passed down from long-time to new employees. We frequently use this blog to detail what we’ve learned from some of our experiences solving customer problems. Recently, we learned something about a particular...

03 Aug

What is Graphite Cement

To the wider public, the poster-boy of graphite applications is probably the pencil. In this blog, we will feature one of the many unsung but useful graphite products that we offer at Semco: graphite cement. While graphite is a durable material, it does happen that time, long-term use, and extreme conditions can lead to failure in graphite components. Rather than shelling out for new components, consider graphite cement for your graphite in-house repairs. What is graphite cement? Graphite cement is a paste-like material that joins graphite with a 100% carbonaceous bond. It remains secure at temperatures up to 5000ºF (Approx.2700ºC)...

27 Jul

What is Graphite?

We’ve written a lot in this blog about our primary material, graphite. We want to clarify that when we talk about graphite in most industrial applications, we are discussing synthetic graphite. Synthetic graphite is the crystalline form of carbon. It is a man-made material that is extremely resistant to high temperatures and acidic or basic solutions. Graphite can be engineered to obtain specific properties such as density, electrical resistance, hardness, porosity, compressive strength, flexural strength, coefficient of thermal expansion, and thermal conductivity. Below, we will detail the processes that go into making synthetic graphite and the different forms it can...