Capital Steel Inc

About Capital Steel INC

Capital Steel, Inc. is a service center provider of carbon steel, mild steel, and steel plate located in St. Louis, Missouri. Since 1984 we’ve been supplying Hot Roll and Hot Roll pickled and oiled, sheets, coil, slit coil, plates, burned to size parts, and sheared to size blanks to manufactures and fabricators. We’re also large participants of excess mill slab rolling programs. These programs allow us to roll a variety of grades and widths and inventory for just in time delivery to better serve our customers' steel needs.Whether your looking for one truckload or thousands of tons we can help supply a portion of your steel needs.

Our Leadership

Robert Miltenberger - Owner/President

 Bob founded Capital Steel in 1984. He has some 43 years' experience in  the steel industry, both in the mill and service center sectors. Bob  works to augment sales and on buying efforts for the company. 

Gary Mason - Vice-President

 Gary has been a member of the Capital Steel team for 21 years and  oversees the day-to-day operations of our company. He is responsible for  sales, product development, pricing strategies, steel procurement, and  overall development of value added services for our customers. Gary also  works in conjunction with Bob to develop and implement our company's  growth strategy. 

Mike McGrory - General Manager

 As a member of the Capital Steel team Mike has over 33 years of  experience in the steel service center industry, 26 of those years at  Capital Steel. Mike is responsible for operations, sales, logistics and  direct-mill purchasing support; as well as exceptional account  management and customer service. 

Dan Politte - Internal Operations Manager

 Dan is a 25 year member of the Capital Steel team. He is responsible for  providing assistance and oversight to Capital Steel’s operations  through best practices, safety programs, quality programs, operational  process improvement, operations technology and processing sales support. 

Our Services

Coils & Sheets

We supply HR and HR pickled and oiled, sheets, coil, & plates.  We carry a variety of grades from IF, CQ, A36, Dual Phase and HSLA grades up to 80 Min. yield. 


With our five Cincinnati shears we can produce precision blanks up to 3/8” in thickness and up to 12’ in length. 


Our  ESAB plasma/oxygen burning table can produce burned to size parts up to  3” in thickness by 10’ in width and up to 20’ in length.  

Contact Us

Capital Steel Inc

6841 St. Charles Rock Road, St. Louis, MO 63133, US

(314) 389-3700