Products News
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What are the physical properties of seamless tubes?
What are the physical properties of seamless tubes? 1. Composition of chemicals. There are specifications for the amount of dangerous chemical elements like As, Sn, Sb, Bi, and Pb as well as gases like N, H, and O. To enhance the consistency and purity of steel’s chemical composition, decre...Read more -
Submerged arc steel pipe acceptance steps
1. Inspection and inspection of submerged arc steel pipes shall be carried out by the supplier’s technical supervision department. 2. The supplier must ensure that the delivered submerged arc steel pipes comply with the regulations of the corresponding product standards. The purchaser has the rig...Read more -
ASTM A53 Seamless tubing
ASTM A53—Uncoated and hot-dip galvanized welded and seamless nominal steel pipe There are two types of seamless tubing: DIN and ASTM American standard seamless steel tube. German seamless steel tube standard, or JIS Japanese seamless steel tube that complies with GB standards. While ASTM America...Read more -
Rust removal technology for large-diameter spiral steel pipes
The surface of spiral steel pipe is mainly polished with wire brush, etc. Cleaning and preheating of large-diameter spiral steel pipes can remove loose or floating scales, rust, welding slag, etc. The rust removal ability of hand tools can reach the Sa2 level, while the rust removal ability of po...Read more -
Analysis of factors affecting the process of high-frequency straight seam welded pipes
The main process parameters of high-frequency straight seam welded pipes include welding heat input, welding pressure, welding speed, opening angle size, the position and size of the induction coil, the position of the resistor, etc. These parameters have a great impact on improving the quality o...Read more -
Differences and uses of seamless steel pipes and spiral welded pipes
1. Seamless steel pipes are widely used. General-purpose seamless steel pipes are rolled from ordinary carbon structural steel, low alloy structural steel, or alloy structural steel. They have the largest output and are mainly used as pipes or structural parts for transporting fluids. 2. They are...Read more