Stupp Corporation is one of the largest, best-performing, best-positioned custom steel line pipe manufacturers in the world because we respond to customer requirements and meet the needs of global markets. We produce Custom Steel Line Pipe and essential customer services in support of these products. Stupp pipe meets and exceeds API-5L, API-5CT, ASTM, AWWA, and ASME specifications in grades through API-5L X-80. These products are available from our Baton Rouge facility in ODs from 10-3/4 through 24 inches and in wall thicknesses from .250 to .625 inches. As the industry leader, Stupp Corporation continues to raise the bar for customer service.