News
-
Method of welding steel pipe forming
1.Single radius forming method. The single-radius roll forming method has three types: circumferential bending forming method, edge bending forming method, and center bending forming method. The single radius forming method is: the hole pattern is composed of a single radius, the horizontal rolle...Read more -
ASTM A53 Grade B ERW Steel Pipe
ASTM A53 Grade B is a standard specification devised by ASTM (American Society for Testing and Materials) for black and hot-dipped, zinc-coated, welded, and seamless steel pipe. In various industries, ASTM A53 Grade B ERW (Electric Resistance Welded) steel pipe is often employed to transfer water...Read more -
Wall thickness accuracy of straight seam steel pipe
Controlling the wall thickness of straight seam steel pipes is a difficult point in the production of steel pipes. 1. Tube billet heating The heating should be average to prevent the rapid rise and fall of the temperature. The temperature of each rise and fall should be steady and slow, and the t...Read more -
Heat Treatment of LSAW Steel Pipe
Longitudinal Submerged Arc Welded (LSAW) steel pipes are often used in various industrial applications, and heat treatment can be an important step in their production process to improve their mechanical properties and ensure proper performance. Heat treatment processes for LSAW steel pipes usual...Read more -
Annealing steps for straight seam steel pipes
Annealing of straight seam steel pipe is to heat the steel pipe to the temperature and keep it at this temperature and then slowly cool it to room temperature. Annealing includes annealing, spheroidizing annealing, and stress relief annealing. 1. Heating the steel pipe to a predetermined temperat...Read more -
CS Seamless Pipe Cold Treatment Process
In the manufacture of seamless carbon steel (CS) pipes, a cold working process is usually used to improve the strength and hardness of the material. The following is the general cold working process of seamless CS pipes. Water Quenching: In the production process of CS seamless pipes, water quen...Read more