Reliance Steel & Aluminum, a diversified metal solutions provider, completed the acquisition of Southern Steel Supply, a metals service center that offers merchant and structural steel, pipe and tube, steel plate, ornamental products and laser cut and fabricated parts. Financial terms were not disclosed. “Southern Steel’s reputation for on-time delivery and superior customer service aligns well with our business model and disciplined methodology of acquiring high quality companies with strong management teams that expand Reliance’s geographic footprint and value-added processing capabilities,” Karla Lewis, Reliance President and CEO.