Introduce:Stub end, is also called lap joint or Vanstone flared lap, It is made by the forming method of erecting a straight edge along a certain curve at the edge of the flat portion or the curved portion of the blank. One end is for the welding connection side, the other end is connected to the core of the loose flange to extend the pipeline. The products are widely used in petroleum, chemical, pharmaceutical, food, power plants, ships, printings, chemical machinery and other industries.

Nominal size：DN15-600mm 
Thickness：SCH5S-SCHXXS
Standard： ASME/ANSI, DIN, JIS BS,JB, SH, HG, such as ASME/ANSI B16.9, ASME/ANSI B16.11, ASME/ANSI B16.28, ASME B16.5, ASME B16.3-1998, MSS SP-43, MSS SP-83, MSS SP-97, GB/T12459－2005,GB/T13401－2005, SH3408, SH3409, SH 3410, HG/T21635,DL/T695,SY/T0510, DIN2617
Material： 1Cr18Ni9Ti、0Cr18Ni9、00Cr19Ni10、00Cr17Ni14Mo2、301、310、304、 304L、18-8、321、316、316L、904L、2205、S31803、S32750等

Surface treatment: pickling, annealed, polished and sandblast finishing
Test: material quality, welding quality, level and verticality, non-destructive testing, water pressure test