Products News
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LSAW Pipe vs SSAW Pipe
1. Advantages of LSAW steel pipe: (1) The tube expansion process used in LSAW steel pipe manufacturing results in residual stress close to zero and eliminates the ‘Bauschinger’ effect. However, in the case of SSAW steel pipe, the manufacturing process results in molding stress and the...Read more -
What material is oil casing manufacturing
Oil casing is a large-diameter steel pipe that plays a role in fixing the walls or wellbore of oil and natural gas wells. Usage: Petroleum casing is inserted into the wellbore and fixed with cement to prevent the wellbore from separating rock layers and wellbore collapse, and to ensure the circul...Read more -
Multi-wire submerged arc welding technology for LSAW pipes
As welding is the main process in the production of straight seam steel pipes, particularly for high-quality oil and gas pipes, it is necessary to ensure high quality while also improving welding efficiency. The length of the weld for straight seam steel pipes is typically quite long, usually aro...Read more -
High Steel Grade Line Pipe
The production of high-grade steel line pipe relies on a micro-alloying heating process. The heat treatment process for high-grade steel line pipe is crucial. The scope of welded pipe applications for pipelines has gradually expanded, particularly in the large-diameter group spacing range where w...Read more -
What Are The Effects Of Inferior Tube Billet On Seamless Steel Pipe?
The quality of seamless steel pipe is significantly affected by the advantages and disadvantages of the billet. A high-quality seamless steel pipe can be produced with a good quality billet, while a poor quality billet can lead to many quality issues. The main factors that affect the quality of s...Read more -
Causes of slag inclusion in straight seam steel pipes
Slag inclusion in welded steel pipes is the slag remaining inside the weld. From theoretical analysis, the main reasons for slag inclusion in submerged arc automatic welding are as follows: ①There are many inclusions in the raw materials (including base metal, welding wire, and flux); ②The cleani...Read more