The surface of stainless steel tube1. The surface is subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., the thickness is thicker from 2.0MM-8.0MM.Dull surface: 2. D cold-rolled, heat-tre

After the oil casing adopts this heat treatment method, the impact toughness, tensile strength, and anti-destruction performance of the oil casing can be effectively improved, and the good value in use can be guaranteed. Oil casing is a necessary pipe for drilling oil and natural gas, and it needs t

Before storing large-diameter steel pipes, attention should be paid to prevent rain or impurities from being mixed in. For materials that have been rained or soiled, different methods should be used according to their properties, such as wire brushes for high hardness, and cloth for low hardness. Co

The straight seam steel pipe is a very common operation in the daily welding of the project. The skills of the steel pipe and the steel pipe welding in the usual operation are becoming more and more important. How to weld the steel pipe and the steel pipe well?1. Check whether the specifications of