Spiral Welded Pipes

Spiral steel pipe or spiral welded pipe are other terms for spiral pipe. Steel strip coil is used as the raw material, then extruded at room temperature and welded using an automatic double wire double-sided submerged arc welding technique—the outer diameter. The wall thickness formula defines the requirements of spiral welded pipe, which is utilized for oil and natural gas pipelines. The weld joint’s hydrostatic test, tensile strength, and cold bending performance must all be in line with the regulations for the spiral welded pipe. Spiral welded pipes are available in various sizes. However, they are mostly used for sizes in excess of 20 inches NPS.

We are Leading Stockist, Trader and Suppliers of  Large Dia Spiral Welded Pipe
Sai Steel Industries, engagement in the wholesaling and trading of Steel Products has made us a distinguished identity in this competitive arena. Our product range includes Mild Steel Pipes and Tubes, MS Structural Steel and SS Structural Steel. Our products are specially designed to cater the diverse needs of modern architectural settings and are widely demanded by a huge clientele for its superior quality construction, corrosion resistance, premium finish, and wear resistance. Highly appreciated by both commercial and residential building projects, our products are assisting the promise of quality and cost effectiveness, which indeed, helped us to earn strong trust from our clients.

We are highly acclaimed as a prominent organisation involved in manufacturing and supplying supreme quality Spiral Pipes. Our offered pipes are extensively used in manufacturing units, various industries and for spreading pipeline channels. These pipes being manufactured by using quality tested material and high-end technology possess high strength and rust proof finishing. Moreover, these pipes are supplied to customers at budget-friendly rates to our customers.

Features:

• High durability
• Accurate in dimension
• Corrosion resistant

Pipe Process:

The raw material used in manufacture of Spiral SAW is H.R. Coil. It is continuously formed to require the specific diameter of the pipe, spirally welded at high speed and cut to required length. The following operations are carried out when the material is loaded for making of the pipe.

Entry Line :- Here the coils are opened, edge milled to required width and fed to forming stand at uniform speed. This unit also enhances the joining of the tail-end of the out going coil with the leading end of the incoming coil to produce continuous strips. Before initializing new campaign, entry line will be positioned in an angle, called Helical Angle in respect to the normal of forming table center axis.

Forming Stand :- The unit performs as the heart of the mill. Here the strip is formed to required size of the pipe spirally welded.

Exit Line :- The main purpose of exit line is to give proper support to the pipe during forming, cut the pipe to required length and eject it outside.

The pipe is then visually inspected thoroughly, both in out side, for probable weld defects such as under cut, porosity. If any defects found, it will be rectified as per the approved QAP (Quality Assurance Plan). After this the pipe will be sent to Beveling (Chamfering Facing) machine for better quality pipe joints during laying works at site. Then the pipes are hydrostatically tested to ensure that there is no leakage from weld joint or parent material.

The pipe will be inspected at different stages of production to ensure the quality of the product. The inspection process consists of Physical / Visual Inspection, Destructive Non-Destructive Testing final inspection before sending for dispatach