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  7. Main Steel
Main Steel logo

Main Steel

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Harmony, PA 16037
724-453-3000
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At a glance

Headquarters
Harmony, PA

About

Main Steel is a specialty processor and polisher of metal products, established in 1956 as a one-line sheet polisher in the Bronx, New York. Today it serves mills, service centers, and select strategic partners from processing facilities in Elk Grove Village, Illinois, and Harmony, Pennsylvania, with a long-standing focus on quality, consistency, and customer service.

Capabilities and markets

Products

Manufacturing processes

Materials worked

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End markets served

Directory supply chains

Classification

NAICS codes

Certifications and registrations

Certifications

  • ISO 9001:2015

Related manufacturers

  • Stainless Steel Services, Inc logoStainless Steel Services, IncFounded in 1976 after Rick Stewart and his family developed a solution for demanding stainless polishing on a nuclear power project, Stainless Steel Services polishes stainless steel for industrial and architectural applications. The family-owned Philadelphia company remains five generations strong, handling everything from pre-fabricated plate to tube and bar while helping customers define finish requirements before production. It also offers coordinated material sourcing and backs its work with a stated re-polish, replace, or refund guarantee when specifications are not met.PHILADELPHIA, PA
  • Sandmeyer Steel Company logoSandmeyer Steel CompanyFounded in 1952, Sandmeyer Steel Company produces specialty stainless steel, nickel alloy, and titanium plate products and processes them into customer-specified shapes and components. Plate production and processing have remained its sole business for more than 70 years; the company is headquartered in Philadelphia and serves customers through regional and international sales locations.PHILADELPHIA, PA
  • Precision Polish, LLC logoPrecision Polish, LLCFounded in 1995, Precision Polish is a Laura Camardello-owned job shop in Frankfort, New York, known for careful metal finishing work and dependable delivery. Its 12,000-square-foot facility serves manufacturers that need components polished or buffed to specific requirements, including tightly controlled aerospace parts.UTICA, NY
  • Ryerson logoRyersonFounded in 1842 as a Chicago iron store, Ryerson has grown into a North American metal distributor and value-added processor with more than 100 locations and a catalog of over 70,000 metal products. Alongside distribution, it provides metal processing and fabrication, including custom-cut parts and assemblies, for customers across hundreds of industries.HILLIARD, OH
More manufacturers in Pennsylvania

Contact information

Website

mainsteel.com

Phone numbers

  • 724-453-3000
  • 847-916-1220

Locations

Main Steel location map for P O BOX 277

P O Box 277

Harmony, PA 16037

Butler County

Get directions
Main Steel location map for 2200 PRATT BLVD

2200 Pratt Blvd

Elk Grove Village, IL 60007

Cook County

Get directions
Main Steel location map for 6 WHITNEY DR

6 Whitney Dr

Harmony, PA 16037

Butler County

Get directions
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Directory source

Source
mainsteel.com
Updated
Sep 2026