-
What is the difference between hot rolling and cold rolling?
The difference between hot rolling and cold rolling is mainly the temperature of rolling process. "Cold" means normal temperature, and "hot" means high temperature. From the viewpoint of metallurgy, the boundary between cold rolling and hot rolling should be distinguishe...Read more -
Several Section Forms of High rise Steel Structure Members
As we all know, steel hollow section is a common building material for steel structures. Do you know how many section forms of high-rise steel structure members are? Let's take a look today. 1、 Axially stressed member The axial force bearing member mainly refer...Read more -
Yuantai Derun Steel Pipe Manufacturing Group – Square and Rectangular Pipe Project Case
The square tube of Yuantai Derun is widely used. It has participated in major engineering cases for many times. According to different use scenarios, its uses are as follows: 1. Square and rectangular steel pipes for structures, machinery manufacturing, steel constructio...Read more -
How is the R angle of square tube specified in the national standard?
When we purchase and use square tube, the most important point to judge whether the product meets the standard is the value of R angle. How is the R angle of square tube specified in the national standard? I will arrange a table for your reference. ...Read more -
What Is JCOE Pipe?
Straight seam double-sided submerged arc welded pipe is JCOE pipe. Straight seam steel pipe is classified into two types based on the manufacturing process: high frequency straight seam steel pipe and submerged arc welded straight seam steel pipe JCOE pipe. Submerged arc...Read more -
Square tube industry tips
Square tube is a kind of hollow square section shape steel tube, also known as square tube, rectangular tube. Its specification is expressed in mm of outer diameter * wall thickness. It is made of hot rolled steel strip by cold rolling or cold ...Read more -
What are the main cutting methods for rectangular tubes?
The following five cutting methods of rectangular tubes are introduced: （1） Pipe cutting machine The pipe cutting machine has simple equipment, less investment, and is widely used. Some of them also have the function of chamfering and automatic loading and unloading an...Read more -
What is the cause of square tube cracking?
1. It is mainly the problem of base metal. 2. Seamless steel pipes are not annealed square pipes, which are hard and soft. It is not easy to deform due to extrusion and is impact resistant. High reliability of installation, no embrittlement under gas and sunlight....Read more -
What factors will affect the feeding accuracy of square tube?
During the production of square and rectangular tubes, the feeding accuracy directly affects the accuracy and quality of the formed products. Today we will introduce seven factors that affect the feeding accuracy of rectangular tube: （1） The center line of the feeding ...Read more -
Dn、De、D、d、 Φ How to distinguish?
Pipe diameter De, DN, d ф Meaning De、DN、d、 ф Respective representation range of De -- outer diameter of PPR, PE pipe and polypropylene pipe DN -- Nominal diameter of polyethylene (PVC) pipe, cast iron pipe, steel plastic composite p...Read more -
What are the advantages of general seamless square tube?
Seamless square and rectangular tube has good strength, toughness, plasticity, welding and other technological properties, and good ductility. Its alloy layer is firmly attached to the steel base. Therefore, seamless square and rectangular tube...Read more -
Production process of hot-dip galvanized steel pipe
Hot dip galvanized steel pipe, also known as hot dip galvanized pipe, is a steel pipe that is galvanized for general steel pipe to improve its service performance. Its processing and production principle is to make the molten metal react with the iron substrate to produc...Read more
HOLLOW SECTION LEADER IN CHINA
