Year1
- 材质：
- Q235B
- 规格：
- 219mm以上
- 质量等级：
- 正品（受质量异议）
, Features
The main features of this product are: first, double-sided submerged arc welding, which not only has a high deposition rate, but also has deep penetration capabilities; second, the arc and welding zone are well protected, and the weld quality is excellent. , good density, and the appearance of the weld is flat and smooth, which can meet various performance requirements of the weld.
, Product implementation standards and uses
This product implements /, / / standards and is mainly used in common fluid projects such as oil, gas, natural gas, water pipelines, thermal power generation, etc.
, product specifications
, wall thickness, material grade.
Standard classification
Spiral seam submerged arc welded steel pipes for pressure-bearing fluid transportation are mainly used in pipelines for transporting oil and natural gas. Spiral seam high-frequency welded steel pipes for pressure-bearing fluid transportation are welded by high-frequency lap welding. It is a spiral seam high-frequency welded steel pipe used for transporting pressure-bearing fluids. The steel pipe has strong pressure-bearing capacity, good plasticity, and is easy to weld and process. Generally, spiral seam submerged arc welded steel pipes are used for low-pressure fluid transport. It adopts double-sided automatic submerged arc welding or Submerged arc welded steel pipes made by single-sided welding for general low-pressure fluid transportation such as water, gas, air, and steam
The common standards for spiral steel pipes are generally divided into / (industry standards, also called spiral steel pipes for ordinary fluid transportation pipes seam submerged arc welded steel pipe), / (national standard, also called oil and gas industry transportation steel pipe delivery technical conditions part one graded steel pipe (strictly demanding graded steel pipes and graded steel pipes)), (American Petroleum Institute standard, also called pipeline steel pipe among them Divided into and two levels), / (spiral submerged arc welded steel pipe for piles) Spiral submerged arc welded steel pipe for pressure fluid transportation () is made of hot-rolled steel strip coils as pipe blanks, which are often heated and spirally formed, using double Spiral seam steel pipe welded by surface submerged arc welding 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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