Steel Knowledge

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