Southland Tube Inc. is one of the leading manufacturers of carbon steel pipe and tubing. Based in Birmingham, Ala., the company produces steel tubing and pipes under rigorous testing and cross checks. It offers tubes and pipes in various sizes and square/round tubing in sizes specified by the customer. The firm is ISO 9001:2008 and ANSI/ISO/ASQ 9001-2008 certified. Southland Tube Inc. has associations with the Metals Service Center Institute and Steel Tube Institute of North America.