SPIRAL WELDED PERFORATED TUBES Newcan is capable of manufacturing spiral welded tubes that range in size from 1 inch to 240 inches long with diameters up to 10 inches using a TIG (GTAW) welding process. The material starts in a coil format and is wrapped around a mandrel and welded. • Materials: Carbon Steel, 300 & 400 Series Stainless Steel • Varying perforation patterns for open area • Material thickness: ranging from .008 inches to .090 inches • Flush welded (click on the photo for a larger image)