Stainless steel pipe characteristics
The stainless steel welded pipe is mainly produced by the continuous forming unit and the UOE method. For the thin-walled pipe whose diameter is below φ219mm, the continuous forming method is usually adopted, and the diameter above φ219mm is usually produced by the UOE method.
Continuous forming unit usually single gun, multi-gun or plasma plus TIG composite welding process. UOE method for the production of large-caliber, thick-walled stainless steel tube, the length of about 6 meters. General use of plasma, plasma and TIG composite, plasma, TIG, submerged arc welding method is suitable for different wall thickness of steel pipe welding.
Stainless steel welded pipe used in chemical, petrochemical, food, paper and many other industries.
For the inner wall of the higher requirements of the pipeline, remelting through the inner wall of the welding process.
UOE pipe situation:
Pipe diameter: φ219-φ1200MM
Pipe length: generally less than 6 meters, except for special
Pipe thickness: 4-14mm
Material: SUS321, SUS304, SUS316, SUS316L and so on
Welding methods and features
As the wall thickness of 4mm above, the use of plasma welding process, with energy concentrated, strong penetration (3-8mm can not groove, a penetration) advantages, to achieve single-sided welding double-sided molding. For more than 8mm wall thickness pipe can be used to open the blunt slope of the way, the use of plasma primer, plasma cover / TIG cover / submerged arc welding cover (according to the thickness and welding process to choose); can also be used plasma Canada TIG welding process at the same time, the current application is more in front of single sub-welding process.
Contact: David Piao
Address：No.99 North Wusongjiang Road, Kunshan, Suzhou, Jiangsu, ChinaPR 215300