Alton Steel Inc

Alton Steel Inc Special Bar Quality (SBQ) Steel Mill Alton Steel offers products at a competitive price with focus on great customer service.

Alton Steel Inc., established in 2003, is a special bar quality (SBQ) mill producing rounds, round-cornered squares, and bar-in-coil in the Heartland of America. Our size range is 0.750 through 3.500 for bars, and up to 1.812" for bar-in-coil, in all carbon and common alloy grades such as 8620 and 4140. Flexible and frequent rolling cycles offers quick response to forgers, cold drawers and cold finishers, spring makers, service centers, and other industrial, automotive, and energy customers.

Our employees are among the most skilled steelworkers in the region.  We have partnered with state and local officials t...
01/29/2026

Our employees are among the most skilled steelworkers in the region. We have partnered with state and local officials to provide resources and to help our employees find their next opportunity. ASI employees have skills and experience that can benefit this region and we're working to support employee transitions. There will be a workshop held for all ASI employees as well as a job fair. We hope employees will utilize these services and opportunities.

Merry Christmas from ASI!!
12/26/2025

Merry Christmas from ASI!!

Address

#5 Cut Street
Alton, IL
62002

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

(618) 463-4490

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