TPEP anti-corrosion steel pipe for water supply and drinking water pipeline, TPEP anti-corrosion spiral steel pipe manufacturer

Description :

　　The quality of 3pe anti-corrosion steel pipes: 1. The trademark and printing of the pipes are relatively standard. 2. The composition of the steel is uniform, and the tonnage of the cold cutting machine is high. The cutting end face is smooth and regular, while the residual material often has the appearance of meat loss on the cutting end face due to poor raw materials, that is, uneven height and no metallic luster. And because the defective material manufacturers have fewer product cuts, the heads and tails will show big ears. 3. Defective 3pe anti-corrosion steel pipes often have a rough appearance on the surface. Matte surface is caused by the severe wear and tear of the rolling groove, which leads to the irregular unevenness of the steel surface. Because manufacturers of defective spiral steel pipes seek profits, they often experience overspending in groove rolling. 4. Scars have formed on the surface of the defective 3pe anti-corrosion steel pipe. 5. Cracks appear on the surface of the defective material due to the fact that its raw material is adobe, which has many pores. During the cooling process, the adobe is subjected to thermal stress, causing cracks, which occur after rolling. 6. The defective 3pe anti-corrosion steel pipe was simply scratched due to the poor equipment of the defective spiral steel pipe manufacturer, which produced burrs and scratched the surface of the steel. Deeply scratch the strength of falling steel. 7. The defective spiral steel pipe has no metallic luster and appears light red or a color similar to pig iron.

　　Wall spiral steel pipes are mainly made of hot-rolled coils and medium thick plates. Thick walled spiral steel pipes use double-sided submerged arc welding technology, and the wall thickness of thick walled spiral steel pipes is slightly thicker than that of ordinary spiral steel pipes. Compared to ordinary spiral steel pipes, the advantages are high compressive strength, high impact strength, high safety performance, and longer service life. According to the current domestic and international market demand, the main application areas are as follows: 1. Oil and gas pipelines, which mainly use thick walled spiral welded pipes, such as the West East Gas Pipeline Project. 2. Machining, this industry has high requirements for the straightness and non roundness of large-diameter straight seam steel pipes, such as those used in road machinery and chemical equipment. 3. Engineering structures, this industry mainly uses mid to low end thick walled spiral steel pipes, such as large pipe truss projects in railway stations, subways, sports venues, etc.

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