The quality of hydraulic seamless steel pipes can be distinguished from the following aspects:
First, distinguish by checking the appearance. The surface of inferior seamless steel pipes is prone to scarring, which is mainly due to more impurities and uneven materials.
Second, dimensional accuracy. The inner and outer diameters of inferior small-diameter seamless steel pipes fluctuate too much. Some may also have a wall deviation phenomenon, and the wall deviation phenomenon is serious.
Third, folding. Fake steel pipes are prone to folding. Folding is a variety of fold lines formed on the surface of seamless steel pipes due to the manufacturer’s pursuit of high efficiency. This defect usually runs through the entire product. The surface is pockmarked, the surface is prone to scarring and cracks, and even scratches, there is no metallic luster, and the cross-section is oval. These defects have made us deeply uneasy. Especially when they aere used for cylinder barrels.
Fourth, the material. The composition of the steel is uneven, and the end face of the cut head is not smooth and neat.
In order to pursue high efficiency and profits, many manufacturers of fake and inferior steel pipes have adopted various improper means, such as cutting corners, using inferior blanks, simple equipment, and blanks made of adobe, etc. These problems have led to a decline in the quality of steel, and are prone to quality problems such as folding, pockmarks, scars and cracks, which may even threaten people’s lives. YUTONG INDUSTRY as one of the leading hydraulic seamless tube suppliers and manufacturers,We has been supplying and exporting seamless tubing and honed tube for almost 20 years. Also produce honed steel tubes and skived roller burnished tubes used for hydraulic cylinder or pneumatic cylinder with high quality & good prices.Imperial sizes & metric sizes available
