The main reasons for the residual magnetism of large-diameter seamless steel pipes are: process magnetism and induced magnetism.

Aluminum pipes are better than seamless pipes in terms of installation, investment, energy saving effect, hygienic requirements and safety performance.

There are many ways to deal with broken black seamless steel pipe piles. The appropriate method should be adopted according to the actual situation.

Whether you choose seamless steel pipes or carbon steel pipes, you should decide which pipe material to use based on specific needs to ensure a balance between project quality and cost performance.

The industry needs to continuously innovate, popularize seamless welding groove technology, and improve construction practice measures.

Carbon is the main element second only to iron in the steel used for seamless steel pipes. An appropriate amount of silicon can improve the strength of steel without significant adverse effects on plasticity, toughness, cold bending performance and weldability.