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JIS G4053 SNCM 439 Seamless Steel Pipe‌ is a high-strength alloy structural steel. The implementation standard is JIS G4053-2008, and it belongs to nickel-chromium-molybdenum tempered alloy structural steel.

SSAW steel pipe is also known as the Spiral Submerged- Arc Welded Steel Pipe that is a type of spirally welded steel pipe produced by using the double-sided submerged arc welding method.

S32750, a duplex stainless steel variety, is used in heat exchangers and cold showers and devices that are resistant to seawater, high temperature and concentrated nitric acid in oil refining, fertilizer, papermaking, petroleum, chemical and other industries.

Square tube is formed from coil and then ran through a series of dies. It’s welded from the inside to form its shape. Square tubes are generally used for maintenance and structural purposes.