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How to solve the corrosion problem of galvanized square pipe?

Most of the square pipes are steel pipes, and the hot-dip galvanized square pipes are coated with a layer of zinc on the surface of the steel pipes by a special process. Next, we will explain in detail how to solve the corrosion problem of the galvanized square pipes. Read More

How to remove oxide scale on large diameter square pipe?

After the square tube is heated, a layer of black oxide skin will appear, which will affect the appearance. Next, we will explain in detail how to remove the oxide skin on the large-diameter square tube. Read More

Do you know the factors that affect the outer diameter accuracy of thick walled rectangular tubes?

The outer diameter accuracy of thick walled square rectangular pipe is determined by human, and the result depends on the customer. It depends on the customer’s requirements for the outer diameter of seamless pipe, the operation and accuracy of steel pipe sizing equipment, and the steel pip... Read More

Do you want to make your products lighter and stronger than before?

By using thinner and stronger structural and cold forming steels like high-strength, advanced high-strength and ultra-high-strength steels, you can save on production costs thanks to easy bendability, cold-forming properties and surface treatment. Additional savings in welding work and filler mat... Read More

The situation of fund shortage in large caliber square tube market is likely to be further aggravated

The wait-and-see mood of the large-diameter square tube spot market has increased, while the enthusiasm of site procurement has not improved. The shipments of large-diameter square tube spot merchants are less than expected. Under the pressure of capital and shipment, the reduction of shipment th... Read More

Method of removing oil on the surface of square tube

It is inevitable that the surface of the rectangular tube will be coated with oil, which will affect the quality of rust removal and phosphating. Next, we will explain the method of oil removal on the surface of the rectangular tube below. Read More

Surface defect detection method of square pipe

The surface defects of square tubes will greatly reduce the appearance and quality of products. How to detect the surface defects of square tubes? Next, we will explain the surface defect detection method of the lower square tube in detail. 1、 Eddy current testing. Eddy current testing includes ... Read More

How to straighten galvanized square pipe?

Galvanized square pipe has a good performance, and the demand for galvanized square pipe is very large. How to straighten the galvanized square pipe? Next, let’s explain it in detail. The zigzag of galvanized square pipe is caused by improper adjustment of rolling mill, residual stress duri... Read More

Essential difference between welded square pipe and seamless square pipe

The production process of square tubes is simple, the production efficiency is high, the varieties and specifications are various, and the materials are different. Next, we will explain the essential differences between welded square tubes and seamless square tubes in detail. 1. Welded square pip... Read More

Recent steel prices-yuantai steel pipe group

Recent steel prices-yuantai steel pipe group Steel fundamentals were further improved against the backdrop of the decline in molten iron in steel mills, and the pressure on steel mills and social inventories was further reduced. However, the reality of widespread losses in the market, combined wi... Read More

Happy Dragon Boat Festival

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BIENVENIDO | YUANTAI DERUN EN EXPOEDIFICA（SANTIAGO） 2017: LA FÁBRICA DE HOLLOW SECTION MÁS GRANDE EN CHINA

-YUANTAI DERUN- Tianjin YUANTAI DERUN Grupo de Fabricación  de Tuberías Co., Ltd. *Clasificado en el puesto 228 de ”500 empresas manufactureras  en China“ del año 2016. *Establecido en marzo de 2002, Yuantai posee 61 líneas de  producción,la producción anual es de 5 millones tonelada... Read More
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