Over 95 years of superior customer service and steel solutions.

With two locations, our steel service center will always be available to fill your order “just in time.” As your partner in solutions, our next day delivery (and even same day in certain regions) helps you manage inventory and keep your manufacturing on schedule.


Arthur F. Maas Sr. founded Maas Hansen Steel Company in 1929, later joined by his stepson, Charles P. Hansen. In 1950, the steel service center changed its name to Maas-Hansen Steel Corporation and moved to its current location in Vernon, California.

In 2015, the company was acquired by Triple S Steel based in Houston, Texas. While still operating with the name Maas-Hansen Steel, we’re now able to serve customers and source steel outside our typical region through the national presence of Triple S Steel.

After 91 years, we’re known throughout the western region for our excellent customer service, quality, and on-time delivery. As a leading diversified metal supplier, steel service center, and solution provider, Maas Hansen Steel offers value-added metal processing services across industries.

Since 1929, our customer-first, enthusiastic team with superior technical expertise has built our success. We’re poised for the future with a commitment to excellence.


We leverage both manufacturing facilities to better serve our customers.

Vernon, CA Facility

  • 153,000 square feet of warehouse and production space.
  • Production operations run two shifts, Monday through Friday.
  • Equipment includes 2 Levelers, 1 Leveler/Blanking Line, and 3 Shears.

Fontana, CA Facility

  • 120,000 square feet of production space.
  • Equipment includes a Braner Slitter, a Red Bud Blanking/leveling Line and a Cincinnati Hand Shear. The Slitting and Leveling Lines are manufactured to handle light gauge, surface critical material. The Slitting Line can handle coils up to 50,000 pounds.
  • This facility is adjacent to another Triple S Steel company —
    Intsel Steel West, a seller of carbon structural steel products.


David Taylor Digital | NJ Digital Marketing