Product News
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Understand the size and application field of DN219 steel pipe
Steel pipe is an important building material, widely used in industries, civil buildings, bridges, pipeline engineering, and other fields. Among the many steel pipe specifications, DN219 steel pipe is one of them. First, the size characteristics of DN219 steel pipe DN219 steel pipe is a steel pip...Read more -
High-quality DN400 spiral steel pipe is the cornerstone of building a solid project
As an important steel product, spiral steel pipe plays a vital role in the field of engineering construction. Among them, DN400 spiral steel pipe has attracted much attention for its unique characteristics and wide application fields. 1. Characteristics of DN400 spiral steel pipe DN400 spiral ste...Read more -
Why do steel pipes need heat treatment
The role of heat treatment is to improve the mechanical properties of steel pipes and precision steel pipes, eliminate residual stress, and improve the cutting performance of steel pipe metal. According to the different purposes of heat treatment, heat treatment processes can be divided into two ...Read more -
Heat treatment of stainless steel pipes
1. What are the characteristics of heat treatment of martensitic stainless steel? Answer: Martensitic stainless steel includes Cr13 type (low carbon and medium carbon), Cr17Ni type (low carbon), and Cr18 type (high carbon). Its heat treatment process includes annealing, quenching + tempering, str...Read more -
Connection of square steel pipes and related precautions
First, how to overlap square steel pipes Square steel pipes are widely used, including structural square steel pipes, decorative square steel pipes, building square steel pipes, mechanical square steel pipes, etc. When used, it is usually necessary to overlap multiple square steel pipes together,...Read more -
Guide to Buying Stainless Steel Pipes
First, what materials are available on the market, and what are the differences in quality? Currently, there are mainly 304, 201, and 301 materials on the market. The difference is mainly caused by the different contents of chromium and nickel. Material 304 contains 18 chromium and 8-9 nickel, wh...Read more