Aerospace & Defense
Great Lakes Specialty Metals serves fabricators and manufacturers nationwide. With our flexibility and focus on customer service, we ensure the aerospace and defense industries have what they need, when they need it.
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Great Lakes Specialty Metals is proud to be a trusted stainless steel and aluminum supplier for the energy and power generation industry. With a dedication to excellence and a focus on reliability, we offer essential materials for power generation facilities, oil and gas operations, and various other energy-related applications. Our commitment to superior customer service positions us as the ideal partner for companies navigating the energy industry’s demanding specifications, certification requirements, and tight project timelines.
As an AS9100-certified supplier with more than 20 years in the specialty metals business, we deliver material you can certify, trace, and trust — with our own delivery fleet serving Illinois, Wisconsin, and Indiana, and nationwide shipping for projects anywhere in the U.S.

As an AS9100 certified supplier, we provide a comprehensive range of specialty alloys carefully chosen to meet the unique demands of the energy sector. Our inventory includes stainless steel, aluminum, nickel, and brass alloys of the highest quality, suitable for a multitude of energy industry applications.
Beyond supplying top-notch products, our team offers a suite of value-added services tailored to the energy industry. These services, such as saw-cutting, grinding, heat treating, and inventory management programs, are designed to optimize efficiency and streamline operations for companies engaged in power generation, oil refining, alternative energy production, and more.
Easily convert steel measurements and estimate weight with our Conversion & Weight Calculator.
Our specialty metals find diverse applications throughout the energy industry:

For more than 20 years, Great Lakes Specialty Metals has supplied certified, traceable specialty metals to manufacturers, fabricators, and contractors across the energy sector. As an AS9100-certified supplier, we back every shipment with mill test reports and material verification so your project meets spec the first time. Our own delivery fleet serves the greater Chicago area, Illinois, Wisconsin, and Indiana, and we ship nationwide for energy projects anywhere in the U.S. Whether you need a single cut-to-size order or a managed inventory program for a multi-phase build, our team is ready to support your supply chain.
Great Lakes Specialty Metals remains committed to delivering high-quality specialty alloys and outstanding service to energy industry clients. Contact us today to discuss your specific requirements and explore how our premium materials and value-added solutions can bolster your projects.
What metals does Great Lakes Specialty Metals supply for the energy industry?
We supply stainless steel — including 303, 304L, 316L, and duplex grades — along with aluminum, nickel, and brass alloys for power generation, oil and gas, and renewable energy applications. Materials are available in bar, sheet, plate, tube, and pipe forms, with cut-to-size options.
Which stainless steel grade is best for oil and gas equipment?
Duplex and 316L stainless steel are commonly specified for oil and gas applications due to their resistance to pitting, crevice corrosion, and stress corrosion cracking in harsh, chloride-rich environments. Great Lakes Specialty Metals stocks both grades in multiple shapes for drilling, pipeline, and processing equipment.
Does Great Lakes Specialty Metals offer value-added processing for energy projects?
Yes. We offer precision saw-cutting up to 20 inches in diameter, centerless grinding, heat treating, cut-to-size plate, sheared sheet, and managed inventory programs, plus material verification and hardness testing — helping energy companies reduce lead times and keep certified material moving through their supply chain.
What areas does Great Lakes Specialty Metals serve?
Great Lakes Specialty Metals delivers directly to Illinois, Wisconsin, and Indiana with our own fleet, and ships stainless steel, aluminum, and specialty alloys nationwide for energy projects anywhere in the United States, backed by our AS9100-certified quality system.
Is Great Lakes Specialty Metals certified?
Yes. Great Lakes Specialty Metals is an AS9100-certified supplier. Every order can be backed by mill test reports and material verification, giving power generation, oil and gas, and renewable energy customers certified, traceable material that meets project specifications.
Our expert staff helps customers across the country and across numerous industries find the stainless steel, aluminum, brass, nickel alloy and specialty metal products they need.
We stock hundreds of items across a variety of metals, grades and shapes. If we don’t have it, we have the team and resources you need to source material from around the world.
In our extensive inventory we carry rounds, flats, hexes, squares, angles (equal and unequal leg), sheet (both 2B and #4 polished), pipe, plate and all varieties of tubing (round, square and rectangular). If not in stock, we can locate it for you.