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Incomplete penetration during welding refers to the defects caused by the base metal not melting and the weld metal not entering into the root of the

In order to ensure that the forming section, welding section and sizing section do not produce "pipe pulling" and "stacking", according to the rolling

Factors affecting metal fatigue strength, such as stress concentration, section size, medium, etc., also affect the welding fatigue strength. In addit

The straight seam electric welded steel pipe is a steel pipe whose weld seam is longitudinally parallel to the steel pipe. During the production proce

In order to ensure the quality during production, we will carry out different inspection methods for pipes with different production processes. There

According to the quality and performance of steel pipes, we have summarized the properties of different metal elements contained. Carbon: The higher t

There are many factors that affect the formation of porosity in steel pipe welding, for example, the type and content of the alloy composition of the

Today, I want to discuss the technical terms of steel pipes with you. After reading this article, I believe that those who need steel pipes should kno

Whether it is straight seam submerged arc welded pipe (LSAW) or spiral seam submerged arc welded pipe (SSAW), if you want to see the welding quality,

What is API 5L GR.B? What are the standard requirements and materials for ERW and LSAW steel pipes?

Steel pipes are widely used in oil, natural gas, water, steam, gas and other high, medium and low pressure fluid transmission pipelines and steel pipe

Generally, the common cutting method of straight seam steel pipe is gas cutting. Gas cutting is to use the heat generated by the combustion of oxygen