According to the production standards for spiral seam double-sided submerged arc welded steel pipes, the main inspection/control items for spiral seam double-sided submerged arc welded steel pipes include: external dimensions: steel... [阅读全文]

The external PE anti-corrosion spiral steel pipe has improved the corrosion resistance and collision resistance of the outer wall of the steel pipe, and has played a good role in buried steel pipelines. It is widely used in o... [阅读全文]

When the front wire current of spiral seam welded steel pipes is generally less than 1000A, the back wire current is about 380A-420A, and the voltage is about 33V-37V. When the current of the front wire of the spiral seam w... [阅读全文]

Epoxy resin powder coated steel pipe is made by coating the surface of the steel pipe with epoxy resin powder and curing it through high-temperature baking. Compared to traditional steel pipes, epoxy resin powder coated steel p... [阅读全文]

The spiral steel pipes used for sewage discharge are generally Q235B spiral steel pipes. When used as sewage pipelines, these spiral steel pipes need to be treated with internal and external epoxy anti-corrosion treatment, or ot... [阅读全文]

Q355B spiral welded pipe is mainly used for water supply, heating, steel structures, pile foundations, bridge building pillars, and other purposes. The welds of Q355B spiral welded pipe have all undergone online continuous ultraso... [阅读全文]

Where can inner and outer coated composite steel pipes be used? 1. Composite steel pipes coated with plastic both inside and outside are used for urban sewer drainage. As the sewer is heavily polluted, the required drainage pi... [阅读全文]

The execution standard for spiral steel pipes used for pile driving is SY5040-83. It is made of hot-rolled steel strip coils as pipe billets, which are often spiral formed at high temperatures, and are made by double-sided sub... [阅读全文]

Mining flange connection coated steel pipes have a wide range of applications in mining transportation. Firstly, in the internal transportation pipelines of mines, the transportation of liquids and gases cannot be separated from t... [阅读全文]

The flange connected plastic coated steel pipe has high corrosion resistance. It adopts a special coating process, which forms a uniform and dense plastic layer by spraying or immersing the surface of the steel pipe. The flange... [阅读全文]