Steel producers and service centers.

Compare material coverage, U.S. operations and technical resources. Find both mill product documentation and the processors that slit, level, cut and finish steel.

Company documentation checked 1 November 2026. Selected companies with U.S. operations; not a ranking or a statement of U.S. ownership. Locations are examples, not a complete mill map.

Steel producers

U.S. Steel

Steel manufacturer

Materials & products: Hot-rolled, cold-rolled and coated sheet; electrical steel and tubular products.
U.S. operations: Examples: Big River Steel Works in Osceola, Arkansas; Fairfield Tubular Operations in Alabama.
Technical & quality documents: Coated-sheet bulletins distinguish coating systems and dimensional tolerances. The operations directory identifies sheet, electrical and seamless-tube routes by facility.

Official sources

Material profiles: HRC · CRC · GI · Electrical · Pipe & tube

Steel Dynamics

Steel manufacturer

Materials & products: Hot-rolled and pickled sheet, CRC, GI, GA, metallic-coated and painted sheet.
U.S. operations: Flat Roll examples: Butler, Indiana; Columbus, Mississippi; Southwest-Sinton, Texas.
Technical & quality documents: The Flat Roll directory separates hot- and cold-rolled substrates and names manufacturing divisions. Certification, SDS and EPD links are organized by division.

Official sources

Material profiles: HRC · HRPO · CRC · GI · GA · Prepainted

Cleveland-Cliffs · legacy AK Steel

Steel manufacturer

Materials & products: Carbon sheet including EGI, GI and GA; stainless, electrical steel, plate and tubing.
U.S. operations: Example: Butler Works, Pennsylvania, documents electrical, stainless and carbon-steel operations. This is different from Steel Dynamics’ Butler, Indiana division.
Technical & quality documents: Product guides separate coating, base grade and surface condition. Current documentation is listed under Cleveland-Cliffs; the AK Steel acquisition was completed in March 2020.

Official sources

Material profiles: EGI · GI · GA · STS · Electrical · Plate

Nucor

Steel manufacturer

Materials & products: Sheet and coated products, plate, beams, bars, rebar, HSS and pipe.
U.S. operations: Example: the plate capabilities page identifies Brandenburg, Kentucky, and its product-specific processing routes.
Technical & quality documents: Plate documentation separates as-rolled, normalized and quenched-and-tempered products. Tubular references distinguish structural HSS, mechanical tubing and pipe specifications.

Official sources

Material profiles: HRC · CRC · GI · Plate · Long products · Pipe & tube

North American Stainless

Steel manufacturer

Materials & products: Stainless coil, sheet and plate; stainless bar, angles and wire rod.
U.S. operations: U.S. mill: Ghent, Kentucky.
Technical & quality documents: The cold-rolled coil reference separates BA and 2B/2D size tables and lists finish/grade combinations. Flat and long-product directories have separate technical entries.

Official sources

Material profiles: STS · Plate · Long products

SSAB · U.S. operations

Steel manufacturer

Materials & products: Plate, including the group’s specialty high-strength and quenched-and-tempered product families.
U.S. operations: The current business-area directory assigns Montpelier, USA, to SSAB Americas and Mobile, USA, to SSAB Special Steels.
Technical & quality documents: Use the product-material-data and download resources for grade-specific properties and dimensions. A global product portfolio does not establish that every grade is made at both U.S. mills.

Official sources

Material profiles: Plate

CMC

Steel manufacturer

Materials & products: Rebar, merchant bar, wire rod and related long products.
U.S. operations: Merchant-bar examples: Birmingham, Alabama, and Seguin, Texas. The directory also separates other mill locations.
Technical & quality documents: Mill-specific lists pair product shapes with grades. For example, the Alabama list includes ASTM A36 and A572-50/55; those entries are not a universal specification for every CMC mill or shape.

Official sources

Material profiles: Long products

Gerdau · U.S. operations

Steel manufacturer

Materials & products: Structural beams, channels, angles, bars, rebar and piling.
U.S. operations: U.S. examples in the product handbook: Cartersville, Georgia, and Petersburg, Virginia. Canadian sites are separately identified.
Technical & quality documents: The product directory and handbook organize long products by shape and mill. Consult the individual section and grade information rather than treating every long product as the same material.

Official sources

Material profiles: Long products

Service centers & processors

Compare coil and sheet processing with plate, structural and tubular services. The profiles below link published capabilities and example U.S. locations; equipment and material coverage vary by operation.

Reliance · Feralloy

Steel service center & processor

Materials & products: Flat-rolled steel, sheet and plate. Feralloy is a Reliance subsidiary; this profile covers its documented processing network.
U.S. operations: Examples: Portage, Indiana; Decatur, Alabama; and Central Plains Steel in Wichita, Kansas. The capability directory maps services to individual operations.
Technical & quality documents: The capability directory covers slitting, cut-to-length, blanking and leveling. It identifies pickling at Portage and plasma plate cutting at Central Plains Steel.

Official sources

Material profiles: HRC · HRPO · Plate

Ryerson · Olympic Steel

Steel service center & processor

Materials & products: Carbon and coated sheet, coil and plate; stainless and tubular products. Ryerson and Olympic Steel completed their merger on February 13, 2026; shown together as one group.
U.S. operations: Example: Olympic Steel’s Cleveland division in Bedford Heights, Ohio, documents coil, sheet and heavy-plate processing. This is an operating location, separate from the corporate office address.
Technical & quality documents: Olympic’s service directory covers slitting, temper passing, leveling and fabrication. The Cleveland division page lists cut-to-length, laser, oxyfuel and plasma processing and links its capabilities sheet. Equipment varies by site.

Official sources

Material profiles: HRC · HRPO · STS · Plate · Pipe & tube

Alro Steel

Metals service center & processor

Materials & products: Carbon sheet and plate, bar, structural shapes, tube and pipe; stainless and tool steel. Useful coverage extends beyond flat-rolled coil.
U.S. operations: Examples: Jackson, Michigan Plate Processing Center, and Bolingbrook, Illinois. Follow the location directory for the relevant operation.
Technical & quality documents: Processing resources describe plate laser, plasma, oxyfuel and waterjet cutting, sawing, shearing and press-brake work. These are network capabilities, not an equipment list for every branch.

Official sources

Material profiles: Plate · Long products · Pipe & tube · STS

Steel Warehouse

Steel service center & processor

Materials & products: Hot-rolled, pickled-and-oiled, cold-rolled and coated steel; coil, sheet and plate product references.
U.S. operations: Examples: South Bend and Portage, Indiana, and Osceola, Arkansas. The company directory connects buyers to local operations.
Technical & quality documents: The processing directory covers temper passing, leveling, slitting, blanking, cut-to-length and pickling. Read the applicable operation’s capability information for the material and finish.

Official sources

Material profiles: HRC · HRPO · CRC · GI · Plate

Worthington Steel

Flat-rolled processor / toll processing

Materials & products: Hot-rolled, cold-rolled, strip and galvanized steel. Its product page also identifies toll-processing services.
U.S. operations: Examples: Bowling Green, Kentucky; Delta, Ohio; and Taylor, Michigan. The location list is a starting point for the relevant processing operation.
Technical & quality documents: The flat-rolled resource lists slitting, cut-to-length, blanking, pickling, annealing and temper rolling. Company-wide services do not establish the equipment or product range at each location.

Official sources

Material profiles: HRC · HRPO · CRC · GI

Coilplus

Coil processor / toll processing

Materials & products: Carbon, coated, prepainted and stainless flat-rolled steel. The Springfield, Ohio page explicitly lists EGI, GI and GA alongside hot-rolled and cold-rolled products.
U.S. operations: Examples: Plainfield, Illinois, and Springfield, Ohio. Their individual location pages provide product and equipment references.
Technical & quality documents: Plainfield documents slitting, cut-to-length and blanking; Springfield documents slitting and cut-to-length. Both pages link equipment capabilities and quality certificates; certificate validity and scope are not assessed here.

Official sources

Material profiles: HRC · CRC · EGI · GI · GA · STS · Prepainted

Majestic Steel USA

Flat-rolled service center & processor

Materials & products: Galvanized, galvannealed, cold-rolled, prepainted and stainless steel product references.
U.S. operations: Example: the Hickman facility page lists a Blytheville, Arkansas postal address. Its equipment description provides a site-specific processing reference.
Technical & quality documents: The Hickman page describes slitting, cut-to-length, multi-blanking and corrective tension leveling. This is a facility equipment reference, not a promise of current availability for every listed product.

Official sources

Material profiles: GI · GA · CRC · Prepainted · STS

Additional international product references

These manufacturer and portfolio references remain available alongside the U.S. operating-company profiles.

Read the document at the mill and product level.

Product family, manufacturing site and document edition define the scope. A corporate portfolio does not establish that every mill produces every grade. Published guides can predate this review; follow the linked guide’s date and the applicable specification edition.

This directory describes documentation coverage. It does not establish current stock, lead time, capacity, qualification or supplier approval.