Chinese New Year Holiday Notice 2025
Dear Valued Customers, We would like to inform you that SHUNFU METAL will be closed for the Chinese New Year holiday from January 24th to February 5th, 2025. We will resume normal operations on February
Control Method for Double-sided Formation with Single-pass Single-side Submerged Arc Welding in Steel Strip Butt Joints for Spiral Welded Pipes
Keywords: SAWH pipe, steel strip, single pass, single-side submerged arc welding double-side formation In spiral welded pipe production, steel strip butt joints typically require front-side submerged arc welding at the butt joint position, followed by
Analysis and Application of TIG Repair Welding Technology for Small-sized Spiral Welded Pipe
Abstract The repair welding process for small-diameter spiral welded steel pipes has long been constrained by spatial limitations. Due to the small diameter, workers cannot use electrode arc welding to repair inner weld defects, making
AISI 4147 Steel Quenching Guide: Water-Based vs. Oil-Based Performance Analysis
Introduction With the rapid development of hydrogen energy infrastructure, the demand for large-diameter high-pressure storage cylinders continues to grow. AISI 4147 steel has emerged as an ideal material for manufacturing these critical components. This comprehensive
Comparative Analysis of X80 Seamless and Straight-seam Steel Elbows
Natural gas plays an increasingly important role in economic development as a cleaner energy source. Over the years, China has constructed several large-diameter natural gas pipelines, utilizing X80-grade steel pipes, such as the second and
Analysis of Tubing Fracture in Ultra-Deep Well
Background A significant tubing failure occurred in an ultra-deep well, with measured depths of 8,483.7 m and vertical depths of 8,228 m. The failures were observed in the 5th tubing and the 236th tubing, with