tel  0317-3587796         email  salesallland@hotmail.com    
Hebei Allland Steel Pipe Manufacturing Co.,Ltd

LSAW Steel Pipe with Flanges

  • LSAW Steel Pipe with Flanges
  1. Features:

    1. Our Allland company could also process the LSAW steel pipes with flanges,or weld the lifting eyes on the pipes according to the requirement of the clients.
Contact Now

LSAW Steel Pipe with Flanges

Our Allland company could also process the LSAW steel pipes with flanges,or weld the lifting eyes on the pipes according to the requirement of the clients.

The Processing of pipe and flange welded connection

the flange contact surfaces should be pressed by metal processing, in order to prevent welding deformation, flange contact surface should be recessed into the depth of h = (0.10 ~ 0.20) t, to provide pre-deformation, shown in Figure 24.

steel tubular wire welding of fillet weld connections, multi-layer welding, welding should be continuous, each bead surface should be cleaned, if found quality defects, should be removed after re-welding.

pressure flange contact surface roughness of less than or equal to ± 0.20mm, in order to ensure the flange connection, the contact surface bonding rate is greater than or equal to 75%, with a 0.4mm feeler, the insertion depth of the area and shall not be greater than 25% of the total area, connecting the maximum gap no larger than 0.8mm.

blue oval gold plate inner process diameter equal to or less than 0.03 ~ 0.1mm (tolerances according to 11) to consider the impact steel oval tolerance, the inner diameter of the flange processing to enlarge the balance + 0.4 ~ 1.0mm, an inner diameter of fillet weld groove greater than or equal to 45º, groove height h0.7t (see Figure 25)

LSAW Steel Pipe with FlangesLSAW Steel Pipe with Flanges



Leave a Message Email Us

we will contact you within 24 hours.

Related Products

  • Heavy Wall Thickness DSAW Pipe

    Heavy Wall Thickness DSAW Pipe

    Our company also keep improving our production ability, we have brought in new equipment to make more sizes, now we could supply the heavy wall thickness 60mm.
  • API 5L PSL1 LSAW Pipe

    API 5L PSL1 LSAW Pipe

    Material:GR.A GA.B X42 -X80,ect Packing:Bebelled end ,painting ,protector ,or coating ,small sizes could be Hexagonal shape bundles wrapped with strong steel strip
  • Large Diameter LSAW Pipe

    Large Diameter LSAW Pipe

    Our LSAW steel pipes are good at producing the heavy wall thickness and large diameter LSAW /DSAW pipes,it is our advantage of LSAW technology,other pipes could not reach this point.
  • API5L NACE MR0175 LSAW Steel Pipe

    API5L NACE MR0175 LSAW Steel Pipe

    NACE MR 0175 require the pipe material anti sour service for LSAW steel pipe.Such as H2S gas transportation. Special Test for NACE: Chemical Component Analysis especially for S,P content.