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

07 Sep

Beyond Lithium Ion Batteries--Dangers to Graphite in High Heat Environments

Synthetic graphite is a carbon material that is manufactured through the high-temperature treatment of carbon precursors, often petroleum-based materials or coal tar pitch. It is used as the anode material in lithium ion batteries, as crucibles in foundries, and many other applications in between. Synthetic graphite oxidation refers to the process by which synthetic graphite materials react with oxygen in the presence of heat, such as when graphite is used in the steelmaking process. Oxidation leads to the formation of various oxidation products which can degrade properties of graphite that make it such an attractive material in the first place....

31 Jul

Graphite in Heat Treat Furnaces

Graphite in Heat Treat Furnaces Graphite is commonly used in heat treat furnaces because of its high temperature resistance and chemical inertness. Semco has long worked with companies in the heat treatment industry to provide reliable custom graphite components for their heat treat furnaces. Below we will explain what heat treatment is, why graphite’s properties like chemical inertness and high temperature resistance make it ideal for use in this industry, and why Semco is such a trusted name in the heat treat furnace industry. What is Heat Treatment? Heat treatment covers a wide variety of processes. In each of these...

21 Jul

Recycling Graphite Waste into Usable Graphite Material

Recycling Graphite Graphite is in high demand these days. Its electrochemical properties make it a coveted material in the booming renewable energy and battery sectors, for instance. Companies like Semco are ensuring that graphite waste is not wasted, but rather recycled into new graphite material. We have written about this topic before, notable in this article about graphite found in an Iowa cornfield that we helped a farmer recycle. We have in other blogs described the importance of graphite recycling and some of our recycling services. During the pandemic, when supply lines were strained and graphite from China was harder...