What is the difference between EFW and ERW stainless steel pipes?
The main difference between EFW and ERW ss pipes is in the welding process. EFW Stainless Steel Pipes are produced by heating the edges of the steel plate or strip and fusing them together. It is done using an electric current which in a continuous weld.
Whereas, stainless steel erw pipes are created by applying pressure and passing an electric current through the steel strip. It produces a series of welds.
Talking about appearance, EFW pipes have smooth internal and external surfaces. Whereas, SS erw pipes may have visible weld lines and a slightly rougher surface.
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How are stainless steel welded pipes manufactured?
Stainless steel welded pipes are manufactured using various processes like electric resistance welding (ERW) and submerged arc welding (SAW). Stainless steel erw pipe manufacturer in india uses ss strips which are passed through a series of rollers to form a cylindrical shape. The edges are then heated and fused together using an electric current, creating a welded joint. It results in durable and reliable stainless steel welded pipes.
We can provide Stainless Steel Spiral Welded Pipe and SS LSAW Pipe in cut to size requirement
Stainless steel erw pipe
Ss welded pipes
Ss lsaw pipe
How surface finish of ASTM A312 SS erw Pipe help in corrosion resistance?
The surface finish of ASTM A312 stainless steel ERW pipes plays a crucial role in enhancing their corrosion resistance. A smooth and properly finished surface reduces the risk of pitting, crevice corrosion and the accumulation of contaminants on the pipe’s surface. Additionally, a polished or passivated surface finish on SS LSAW Pipe can improve the passive oxide layer on stainless steel, enhancing its resistance to corrosion.
Our stainless steel welded pipe and ASTM A312 SS erw Pipe price list is available upon request.
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Stainless steel spiral welded pipe
- Hydro test
- Eddy Current Test
- Heat Treatment
ASTM a312 ss erw pipe
- Schedule 120
- Schedule 160
- Schedule XXS
Efw stainless steel pipe
Stainless steel ssaw pipe
- Size 8 mm to 127 mm.
- Thickness 0.3 mm to 4mm
Sch 40 stainless steel erw pipe
- cut to size
- Laser cut
Schedule 80 ss welded pipe
- Food processing
- Power generation
View tensile strength and melting point of Stainless steel SSAW Pipe and Sch 40 SS erw pipe
What type of welding do you use on a stainless steel welded pipe?
TIG Welding or Gas Tungsten Arc Welding is most commonly used in stainless steel SSAW Pipes. It is a welding process that utilizes a non consumable tungsten electrode to create an electric arc for fusion of metal joints. In TIG welding an inert gas is used to shield the weld zone from atmospheric contamination.
Can you heat treat Schedule 80 SS welded pipe?
Yes, schedule 80 SS welded pipes can undergo heat treatment processes depending on the specific grade of the ss and desired properties. Heat treatment methods like annealing, solution annealing, stress relieving & tempering can be applied to the sch 40 Stainless steel erw pipes. It helps modify their mechanical properties, improve their corrosion resistance or enhance their microstructure.
How to check ID and OD in Stainless Steel Spiral Welded Pipe?
Use a measuring tape or a caliper to measure the outside diameter of the pipe. Place the measuring tool across the widest point of the pipe’s circumference and record the measurement.
To measure the inner diameter (ID), use a telescoping gauge or an inside micrometer. Insert the measuring tool into the Stainless Steel Spiral Welded Pipes. Expand it to make contact with the inner surface & then lock it in place to take the measurement.