AMERICAN Steel Pipe
Birmingham, AL
High-frequency-welded steel pipe to API Standards for the energy and carbon capture markets, as well as structural pipe for pilings and casings.
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Domestic Steel Mills
Last updated: September 2026
This directory lists 35 domestic steel mills across the United States, from integrated mills producing flat-rolled products to minimills specializing in long products and structural shapes.
Buyers in this category are typically solving problems related to securing high-quality, traceable steel that meets precise mechanical properties and chemical compositions, often for critical infrastructure or defense applications. The focus is frequently on overcoming supply chain volatility, achieving Buy America compliance, and sourcing specific forms like wide plate, specific gauge sheet, or custom structural shapes directly from a capable mill.
The domestic steel mill landscape comprises several distinct types: Integrated mills (often utilizing a BOF) that produce steel from iron ore and typically offer a broader range of flat-rolled products with higher MOQs; Minimills (primarily EAF-based) that recycle scrap steel and commonly specialize in long products like rebar, merchant bar, or smaller structural shapes; and Specialty mills focusing on specific alloys, higher strength steels, or advanced finishing operations like galvanizing or tempering.
Successful engagement with domestic steel mills requires buyers to be meticulously prepared with detailed specifications: exact material grade (e.g., ASTM A36, A514), precise dimensions, required mechanical properties, surface finish expectations, and any necessary certifications or testing requirements. Suppliers, in turn, expect clarity in RFQs, understanding of their typical production schedules, and awareness of their standard MOQs for specific product lines or custom heats.
A significant trend in the domestic steel industry is the drive towards decarbonization, particularly evident in the increased adoption of EAF technology and the development of 'green steel' initiatives, often using renewable energy sources. This shift is influencing sourcing decisions for companies committed to reducing their carbon footprint, while ongoing investment in modernization aims to enhance domestic competitiveness and expand specialized capabilities.
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Company Directory
35 companies nationwide
Company
Location
Description
Contact
California Steel Industries
Fontana, CA
As a leading supplier of galvanized products in the Western United States, CSI offers the broadest range of thicknesses, widths, and coatings of galvanized.
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Cleveland-Cliffs Inc.
Cleveland, OH
Based in Cleveland, OH, Cleveland-Cliffs Inc. is North America's largest flat-rolled steel provider. The company is vertically integrated, overseeing operations from mining raw materials to finishing diverse steel products. They specialize in steelmaking, tooling, stamping, and tubular components, serving various industrial markets.
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Commercial Metals Company
Irving, TX
Our mills produce steel long products including rebar, angles, channels, flats, rounds, squares, post, wire rod and other special sections. For detailed.
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Infra-Metals
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Merchant Bar products are comprised of Hot Rolled and Cold Finished Carbon types. Learn about the many different sizes, lengths and specifications we offer.
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Jade Sterling Steel
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Merchant Bar Quality (MBQ) is a cost-effective category of hot rolled carbon steel, produced to specific sizes with a carefully controlled chemical composition.
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JSW Steel USA
Mingo Junction, OH
CARBON STEEL PLATE. JSW USA not only makes its steel via the Electric Arc Furnace method, we also operate the largest and most modern Consteel™ EAF technology.
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King Steel
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King Steel is a leading supplier of hot rolled rod & wire rods in various qualities including industrial & cold heading. Call today!
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LIBERTY Steel USA
Irving, TX
LIBERTY Steel USA operates domestic steel mills with Electric Arc Furnace (EAF) melting and rolling facilities in the United States, including Illinois. A division of the global LIBERTY Steel Group, the company specializes in manufacturing wire rod, providing essential steel products for various industrial applications and strengthening the domestic supply chain.
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L&R Industries
Mountain Grove, MO
Our steel tube mill produces high quality, steel tube & pipe of many sizes. We're a trusted supplier for OEMs, retailers and distributors.
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Rocky Mountain Steel Mills
Pueblo, CO
We specialize in high-performance steel products that are essential to building and moving North America: Standard and Premium Rail:.
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SSAB
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SSAB's primary competitors in the US include Nucor Corporation, Cleveland Cliffs and Evraz plc and SSAB primarily competes with Essar Steel Limited in Canada.
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Steel Dynamics
Fort Wayne, IN
We are one of the largest domestic steel producers and metal recyclers in North America, combined with a meaningful downstream steel fabrication platform.
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Steel Specialties
El Paso, TX
The steel mills supplied the United States military with a wide range of necessary war supplies including bomb casings, armor-piercing shells,
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Superior Alloy Steel Company
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For over 60 years, the Superior Alloy Steel company has been providing a wide variety of stock alloy steel material and specialty fabricated, high wear products.
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T&B Tube
Gary, IN
T&B Tube Company is a precision steel tubing manufacturer serving a variety of industries. We are precise, prepared, and prompt in fulfilling your needs.
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Universal Stainless
North Jackson, OH
Universal Stainless produces semi finished and finished specialty steel including nickely alloy, aerospace grade low alloy and stainless steel.
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Gerdau
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Gerdau is a leading global steel producer. Each year, we transform more than 10 million tons of recycled scrap metal into new, steel products.
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Core Metals
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Merchant bars are a broad category of steel products commonly used in construction, fabrication, engineering, and manufacturing projects.
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ArcelorMittal North America
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Our rod mills manufacture wire rod with our steel and sell it into four main business segments: Low carbon which is mainly catering to the construction.
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voestalpine Wire Technology
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By producing at the most advanced wire rod mill in the world, we can offer customized solutions with extremely tight tolerances and coil masses.
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Alliance Tubular Products
Gary, IN
Alliance Tubular Products is the foremost steel tube mill, supplying tubular products in various lengths, sizes, and shapes, -Leading Structural and Mechanical.
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Capital Steel & Wire
Dewitt, MI
Capital Steel & Wire is a leading producer and supplier of domestic and international steel bar, steel wire, and wire rod with global knowledge of the steel.
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Eaton Steel Bar Company
Oak Park, MI
Eaton Steel Bar Company is the industry leader in hot rolled & cold drawn bars, and are steel supply chain specialists since 1953.
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Intsel Steel West
Salt Lake City, UT
As your single source for steel, we stock merchant bars in a variety of shapes, diameters, and thicknesses, from round, flat, and angles.
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North American Stainless
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North American Stainless (NAS) has undertaken several phases of expansion to become the largest, fully integrated stainless steel producer in the U.S.
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Nucor
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The Electric Arc Furnace (EAF) dates back to the late 19th century, and Nucor pioneered the growth of sustainable steelmaking in America.
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Hyundai Steel
Chicago, IL
Hyundai Steel to produce 2.7 million metric tons of steel annually at new Electric Arc Furnace (EAF)-based integrated steel mill in Louisiana,
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SB Specialty Metals
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We have one of the largest inventories of tool steel and specialty metals in the USA. we can custom cut and mill to your specifications.
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Special Metals
New Hartford, NY
Special Metals has over a century of expertise creating high-performance alloy products for the most brutal, mission-critical services in the industry.
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Specialty Steel Works Incorporated
Hammond, IN
Headquartered in Hammond, Indiana, Specialty Steel Works Incorporated is one of North America's leading independent manufacturers of specialty steel products.
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US Premier Tube Mills
Madison, IN
US Premier Tube Mills is a dedicated manufacturer of high-quality steel pipe & tubing for use in residential, industrial, and commercial,
Phone available
U. S. Steel
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U. S. Steel's largest manufacturing plant, is situated on the south shore of Lake Michigan in Gary, Indiana. Comprised of both steelmaking and finishing.
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Wheatland Tube
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American-made steel pipe and tube for electrical, process, fire suppression, fence framework, mechanical and energy systems.
Phone available
Hybar
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We've combined our vast experience with advanced steelmaking technology to produce the lowest-cost, most environmentally sustainable, tomorrow-friendly rebar.
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How to Choose a Company
- Verify the mill's core production method (BOF vs. EAF) and their specific product focus (e.g., flat-rolled coils, structural beams, rebar, specialty plate) to ensure alignment with your required material form and typical lead times.
- Scrutinize the mill's quality management system and their process for generating accurate Mill Test Reports (MTRs); confirm their MTRs consistently provide chemistry, mechanical properties, and heat traceability for your critical applications.
- Confirm required certifications (e.g., ASTM A36, A572, A992 for structural; API 5L for pipe; ABS for marine) are routinely provided and meet your specific end-use industry standards, not just general ISO 9001.
- Assess their capabilities for secondary finishing operations like coil slitting, cut-to-length plate, heat treatment, or galvanizing, as this often dictates whether you need an additional processor or a single-source solution.
- Evaluate their minimum order quantities (MOQs) against your forecasted annual volume; many mills have significant MOQs for custom heats or specific rolling schedules, which can be prohibitive for smaller runs.
- Investigate their freight and logistics infrastructure, including rail spur access or proximity to major ports, as inbound and outbound shipping costs for heavy steel products can significantly impact the total landed cost.
- Beware of mills offering 'secondary' or 'non-prime' material without full MTR traceability if your application demands specific mechanical properties, weldability, or surface finish, as this can lead to costly quality failures.
Frequently Asked Questions
What's the difference between an integrated mill and a minimill, and why does it matter for my order?
Integrated mills use a Basic Oxygen Furnace (BOF) to produce steel from virgin iron ore, often resulting in very large production runs and a wider range of flat-rolled products. Minimills primarily use an Electric Arc Furnace (EAF) to melt recycled scrap steel, typically specializing in long products like rebar or merchant bar. The choice matters because integrated mills generally have higher MOQs and longer lead times for specific chemistries, while minimills can offer more flexibility for smaller orders but might have limitations on product dimensions or specific alloys.
How critical is the Mill Test Report (MTR), and what specific information should I verify on it?
The MTR is absolutely critical; it's the certified record of a specific heat of steel, detailing its chemical composition, mechanical properties (e.g., tensile strength, yield strength, elongation), and often heat treatment parameters. You should verify the heat number matches your material, all required tests were performed, and that the values for specified elements and mechanical properties fall within your engineering tolerances and relevant ASTM standards. It's your primary proof of material compliance.
Do all domestic steel mills automatically comply with 'Buy America' requirements for federal projects?
No, not automatically. While sourcing from a US-based mill is a strong starting point, 'Buy America' (or 'Buy American Act') compliance often has specific clauses regarding the percentage of US-origin content and the manufacturing process. It's imperative to explicitly state your 'Buy America' requirements in your RFQ and receive documented assurance from the mill that their specific product and manufacturing process meet the stipulated thresholds for your project, including any specific waivers or certifications.
What are the typical lead times for custom-ordered grades or shapes versus off-the-shelf stock?
Lead times vary significantly. For off-the-shelf stock that a mill has in inventory or on a standard rolling schedule, it could be a few weeks. However, for custom-ordered grades, specific dimensions not typically run, or specialized heat treatments, lead times can stretch from 8 to 20 weeks or more. These often require a dedicated 'rolling window' or 'campaign' at the mill, which depends on their overall production schedule and minimum order quantities for such specific runs.
When should I consider prime versus secondary steel, and what are the risks associated with secondary material?
Prime steel is new, first-quality material that meets all specified dimensions, mechanical properties, and surface finish, backed by a full MTR. Secondary steel, on the other hand, might have minor surface imperfections, off-gauge dimensions, or be surplus material from another order; it often lacks a comprehensive MTR or full traceability to a specific heat. You might consider secondary for non-critical, aesthetic, or temporary applications where cost is paramount, but the risks include inconsistent material properties, reduced performance, and potential rework or failure in critical structural or high-stress applications.
How do scrap steel prices impact the cost and availability from Electric Arc Furnace (EAF) mills?
Scrap steel is the primary raw material for Electric Arc Furnace (EAF) mills. Therefore, fluctuations in global and domestic scrap steel prices directly impact the production costs and, consequently, the pricing from EAF mills. When scrap prices rise, EAF mill steel prices typically follow suit. Availability can also be affected; if scrap supply tightens, EAF mills may face challenges meeting demand or be forced to pass on higher raw material costs, making long-term contracting or understanding their scrap sourcing strategy crucial.