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Submerged Arc Welding - the Most Practical Steel Pipe Welding Technology

09-14-2022 01:51 PM CET | Industry, Real Estate & Construction

Press release from: Permanent Steel Manufacturing Co.,Ltd

Submerged Arc Welding - the Most Practical Steel Pipe Welding

Submerged arc welding (SAW) is one of the most efficient mechanized welding methods today. Its full name is automatic submerged arc welding, also known as automatic arc welding under the flux layer.

Submerged arc welding technology is ideal for important applications such as pipelines, pressure vessels and storage tanks, rail manufacturing and large-scale construction. Available in the simplest form of single wire, double wire construction , series double-filament structure, multi-filament structure.

Submerged arc welding technology can benefit users in many welding applications. From increasing productivity to improving the working environment to ensuring consistent quality and more. Metal fabricators who are considering making changes to the submerged arc welding process should be thinking that there are many benefits to be gained from the process.

Advantages of submerged arc welding:

Submerged arc welding (SAW) technology is suitable for heavy industrial applications such as pipelines, pressure vessels and storage tanks, locomotive construction and heavy construction/excavation. Ideal for industries requiring high productivity, especially welding involving very thick materials, many benefits can be derived from the submerged arc welding process. Its high deposition rate and travel speed can have a significant impact on worker productivity, efficiency and production costs, which is one of the key advantages of submerged arc welding technology.

Other benefits include excellent weld chemistry and mechanical properties, minimal arc visibility and lower welding fumes, improved comfort in the work environment, and good weld shape and toe line.

Submerged arc welding is a wire feeder that uses a granular flux to separate the arc from the air. As the name suggests, the arc is buried in the flux, which means that when the parameters are set, the arc is invisible as the next layer of flux flows out. Welding wire is continuously fed by a torch that moves along the weld. Arc heating melts a section of welding wire, part of the flux and base metal to form a molten pool, which condenses to form a weld covered with a layer of slag. Welding material thicknesses vary from 1/16" to 3/4", and single pass welds can be welded with 100% penetration. If the wall thickness is not limited, multi-pass welding is possible, the weld should be properly pre-treated, and the appropriate combination of welding wire and flux should be selected.

High quality of welding seam: The slag has good protection effect of air isolation, welding parameters can be kept stable through automatic adjustment, the technical level of the welder is not high, the welding seam composition is stable, and the mechanical properties are relatively good.
Good labor conditions: In addition to reducing the labor intensity of manual welding operations, it has no arc radiation, which is a unique advantage of submerged arc welding.

Submerged arc welding application range:

At present, it is mainly used for welding various steel plate structures. Weldable steel types include carbon structural steel, stainless steel, heat-resistant steel and its composite steel. Submerged arc welding is most widely used in shipbuilding, boilers, chemical containers, bridges, lifting machinery, metallurgical machinery manufacturing, marine structures, and nuclear power equipment. In addition, submerged arc welding is used for surfacing wear-resistant and corrosion-resistant alloys or for welding nickel-based alloys, copper alloys are also ideal.

Permanent Steel Manufacturing Co.,Ltd:
Address: #668,Lugu Avenue,Hi-Tech Industrial Development Zone,Changsha,China
LSAW steel pipe:
SSAW steel pipe:
Seamless steel pipe:
ERW steel pipe:

Permanent Steel Manufacturing Co.,Ltd is a professional manufacturer & exporter of steel pipes in China. Products including carbon steel pipe(SMLS pipe/ERW/LSAW/SSAW),stainless steel pipe,galvanized steel pipe,alloy steel pipe and the related products.We offer perfect service to our customers and bring in the highest quality steel pipes at the most competitive price for our Clients. Our entire operations are focused on the precise demands of our client needs.

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