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N80 oil casing prices are also difficult to change the downward trend

N80 oil casing prices are also difficult to change the downward trend

In the construction steel market, the price of N80 oil casing is also difficult to change the downward trend, but the decline is significantly slower than before.In markets such as Shanghai and Hangzhou, where the weekly decline in ton prices has exceeded 100 yuan, the current decline has generally narrowed to 10 to 60 yuan.

25

2023

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04

J55 oil casing questions and answers

J55 oil casing questions and answers

Question: Many customers will ask why your quotation is higher than that of others after inquiring about the price?

25

2023

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04

What are the categories of thin-walled welded steel pipes?

What are the categories of thin-walled welded steel pipes?

The wall thickness of seamless steel pipe is relatively thick, and the diameter thickness is relatively small.However, the diameter of the pipe is limited, its application is also limited, and the production cost, especially the production cost of large-caliber seamless steel pipes, is relatively high.

03

2023

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04

Why is thin-walled straight-seam welded pipe more and more widely used?

Why is thin-walled straight-seam welded pipe more and more widely used?

In our ordinary lives, we will find that steel pipes are all over our places. For example, thin-walled welded pipes are used for tap water, steel pipes are used for natural gas transportation, and steel pipes are also used for thin-walled welded pipes.

03

2023

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04

The difference between high-frequency welded steel pipe and straight-seam welded steel pipe

The difference between high-frequency welded steel pipe and straight-seam welded steel pipe

High-frequency straight-seam resistance welded steel pipe is a hot-rolled coil formed by a forming machine, using the skin effect and proximity effect of high-frequency current to heat and melt the edge of the tube billet, and perform pressure welding under the action of an extrusion roller to achieve production.

03

2023

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04

High-frequency welded pipe production technology and acceptance steps

High-frequency welded pipe production technology and acceptance steps

In practical applications, we can use welded pipes to transport various low-pressure fluids. The products are generally made of Q195, Q215A, Q235A steel, and Q235B general carbon.It can also be made of easy-to-weld 0317 standard model 6012 and steel mother 755 soft steel.

03

2023

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04

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