thick wall piling pipe

Thick-walled piles found in double-drive soft steel pipes
Double-sided submerged arc welding production technology, the product consists of bending, joint, welding, straightening, flat head, mult, etc. . .
Thick-walled piles found in double-drive soft steel pipes
Double-sided submerged arc welding production technology, the product consists of bending, joint, welding, straightening, flat head, etc.
The process meets the standards of the American Petroleum Institute.
Large diameter thick wall pipe applied to large steel structure construction, bridge pile, bottom pile, high
Piling up high-rise buildings.
The materials are generally used in order to make.
The low temperature area is used in q55d q5e.
Production process of thick-walled steel pipe with piling structure: round pipe blank and heating punching, three-
Rolling, rolling or rolling-pipe -sizing (or reducing)-cooling -
Water pressure test or inspection-
> Manufacturing method of hanging tag and storage pile driving carbon steel pipe (1)
The raw materials are steel coil, wire rod and flux.
Strict physical and chemical tests must be passed before investment. (2)
After rolling, the steel pipe is welded by submerged arc automatic welding, and then welded by single wire or double wire submerged arc. (3)
Before forming, the strip after flattening, cutting edge, planing edge, transmission, and cleaning the surface to the cuffs process. (4)