Year1
- 材质：
- Q235B
- 规格：
- 219mm以上
- 质量等级：
- 正品（受质量异议）
./ is made of hot-rolled steel strip coils as pipe rings, often heated and spirally formed, and made by double-sided automatic submerged arc welding or single-sided welding. It is used for general low-pressure liquid transportation such as water, gas, air, and steam. Use submerged arc welded steel pipe. / is the petroleum ministry standard, generally called the ministry standard. Spiral seam submerged arc welded steel pipe for general low-pressure fluid transportation () is a submerged arc welded steel pipe made by double-sided automatic submerged arc welding or single-sided welding for general low-pressure fluid transportation such as water, gas, air, and steam.
. Theoretical weight formula of spiral steel pipe (outer diameter wall thickness) wall thickness. Weight per meter (kg/m)
Quasi-classification
Spiral seam submerged arc welded steel pipes for pressure fluid transportation are mainly used Spiral seam high-frequency welded steel pipes are used for transporting pressure-bearing fluids in pipelines that transport oil and natural gas. They are welded by high-frequency lap welding. Spiral seam high-frequency welded steel pipes are used for pressurized fluid transport. The steel pipes have strong pressure-bearing capacity and plasticity. Good, easy to weld and process. Spiral seam submerged arc welded steel pipe for general low-pressure fluid transportation. It is made by double-sided automatic submerged arc welding or single-sided welding. It is used for general low-pressure fluid transportation such as water, gas, air, and steam. Welded steel pipe
The commonly used standards for spiral steel pipes are generally divided into / (industry standard, also called spiral seam submerged arc welded steel pipe for ordinary fluid transportation pipelines), / (national standard, also called oil and gas industry transportation steel pipe delivery technical conditions) Some graded steel pipes (graded steel pipes and graded steel pipes with strict requirements)), (American Petroleum Institute standard, also called pipeline steel pipes, which are divided into two grades), / (spiral seam submerged arc welded steel pipes for piles) Pressurized fluid transportation Spiral seam submerged arc welded steel pipe () is a spiral seam steel pipe that is made of hot-rolled steel strip coils as tube blanks, often heated and spirally formed, and welded by double-sided submerged arc welding. It is used for pressure fluid transportation. Steel pipes have strong pressure-bearing capacity and good welding performance. They have undergone various rigorous scientific inspections and tests and are safe and reliable to use. The steel pipe has a large diameter, high transportation efficiency, and can save investment in laying pipelines. Mainly used for pipelines transporting oil and natural gas.
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