Fin cutting – the complete removal of the internal weld bead (or fin) – is now available on sizes above 25.40mm od for ERW tube produced here at Top Tubes.
For the benefit of those not technically aware, fin-cut tube is necessary where the bore cannot have any weld seam obstruction. Instances such as one section of tube fitting snugly inside another or where there is a precision internal fit required. Cold drawn seamless tube offers the same benefits, but at a much greater cost.
Top Tubes has always offered a controlled internal weld seam by ‘bead rolling’ the internal weld seam on ERW mild steel tube. With fin cutting we now offer seam welded tube with the internal weld seam completely eliminated, giving even greater control of the internal bore/condition.
Fin-cutting takes place in-line by means of an internal scarfing tool positioned directly beyond the welding stage, over which the tube travels. The resulting scarfed fin wire is removed by means of high pressure air gun, leaving a clean internal diameter.
The clean bore of a fin-cut tube is a requirement in many applications, opening up new markets that were previously inaccessible – yet another forward step for Top Tubes to offer our market a full range of options in seam welded mild steel tube.
Contact
Tel: +44 (0) 121 506 1080 (Option 2)
Fax: +44 (0) 121 506 1090
Email: [email protected]
www.toptubes.co.uk/products-and-services/welded-tube