I don’t know about you guys, but I personally feel that pipes are one of the best creations mankind has come up with. From efficient water systems to effective sewage systems to many more. Pipes have made life that much easier and more bearable. I mean, imagine having to walk 3 miles just to reach the river to get your water. Or what about having to pull up water from the well every day without fail and then having that heavy load all the way back to your home. Terrifying isn’t it. Thus, I feel that it is only right that we learn and acknowledge the pipes that have eased our burdens. Today, I’ll be talking about the differences between ERW and SAW pipes in Malaysia.
What are ERW and SAW Pipes?
Submerged arc welding steel pipes are also known as SAW steel pipes. SAW is a steel-welding production technique that provides a high current density, which prevents the flux layer from losing heat quickly and concentrates it in the welding region. Submerged arc welded pipe is extensively used in pressure vessels, pipe manufacturing, beams, low-pressure fluid, and steelworks because of its high quality, high production efficiency, and arc and smoke characteristics.
Electric resistance welded steel pipe, also known as ERW steel pipe, is welded by high-frequency welding specified size strip steel rolled into a round tube. ERW is widely utilised in aviation, aerospace, energy, electronics, automotive, light industry, and other industrial sectors because of its high efficiency, cheap cost, material savings, and ease of automation. It is a vital link in the welding process.
Now that we know what each pipe is, it’s time to see their differences.
First and foremost, ERW pipes have fewer defects than SAW pipes. Because SAW has a solvent deposit. Apart from the faults in the volume, it causes more defects. Wire-line and straight welds are the only flaws identified in ERW pipes. It is possible to inspect it.
The flaws are visible. It’s also easy to detect because of the ultrasonic reflection on the surface. In the case of saw pipe, however, inspections include not just the weld seam but also the source material. SAW pipes are all larger than 219 mm in diameter and usually have thick walls.
Residual Stress Ratio
Secondly, ERW pipes have a lower residual stress ratio than SAW pipes. ERW pipe distortion is more common in ERW that is followed by flat oval size. It causes elliptical vertical changes and necking, which reduces the tension. Additionally, ERW pipes had less displacement. It compares the axial and transverse incisions to the SAW pipe that has been constructed. It was also easy to notice when utilising the same substance.
Despite the fact that the performance of ERW and SAW pipes are identical. Steel scrap and welding can be done on ERW if the pipes have a fault. While this is not the case with SAW, which can lead to cracking or corrosion, ERW is more durable.
The distinctions between SAW and ERW can be seen in these five features. You may already have an idea of what SAW and ERW pipes are. We learned ERW and SAW pipes as well, despite the fact that we are an experienced LSAW pipe producer.