Industry leader in the electrical & enameling steel sector

We Slit Move Blank Anneal Cut Fabricate Steel

Welcome to mapes & sprowl steel

Founded in 1927, Mapes & Sprowl Steel is a leading service center specializing in enameling steel, electrical steel, and Agion® Antimicrobial Treated Steel. Our focus over the years has been geared towards advancing our thin gauge processing capabilities, especially in the electrical steel sector. Mapes & Sprowl Steel is capable of processing down to 0.004” thick material, offering the widest array of options of electrical material for our customers.

Our specialty services include slitting, blanking, and custom electrical core manufacturing. Our breadth of steel inventory accommodates customer spot buys and hold-for-release programs to ensure an optimized supply chain for our customers.

Backed by technical experts, and decades of collective steel experience, Mapes and Sprowl Steel is committed to providing our customers innovative solutions. Our employees display unmatched commitment and pride in their work with a focus on building long-term relationships with our customers.

View Our Material Selection

Electrical Steel

Mapes & Sprowl Steel is a full-service supplier of electrical steel, specializing in Grain Oriented (GO), Non-Grain Oriented (NGO), and Cold Rolled Motor Lamination (CRML).

Enameling Steel

From household appliances, barbeque grills, cookware, signs/panels and heat exchangers to automotive parts and fireplace components, Mapes & Sprowl Steel stands ready to meet your specific enameling steel needs.


Antimicrobial Steel

Agion Antimicrobial Treated Steel suppresses the growth of bacteria, molds, fungi, and other microbes, making it the go-to product for applications where antimicrobial protection is required or desired.

UPG Enterprises LLC (UPG) is made up of a portfolio of companies that offer the best-in-class steel processing and production capabilities. Mapes & Sprowl Steel is just one member of UPG’s family of brands. Together, with our affiliate companies, we embody our motto of being “STRONGER TOGETHER.”

Join our team

We are always seeking energetic, hardworking, motivated individuals to join the team.