Dec 18,2025
Production process of large-diameter straight seam submerged arc welded steel pipe
Roll forming submerged arc welding technology: When the diameter is large, two steel plates may be rolled to form a double weld structure. This process requires strict control of the welding seam docking accuracy to ensure welding quality.
Dec 18,2025
Characteristics of large-diameter straight seam submerged arc welded steel pipes
Large caliber and thick wall: The outer diameter range can reach 16 to 56 inches (approximately 406 to 1422 millimeters), and the wall thickness range is 0.312 to 2 inches (approximately 7.9 to 50.8 millimeters), meeting the needs of high-pressure and high-strength transportation.
Dec 18,2025
Product characteristics of thick walled T-shaped welded pipe
Diverse materials: covering carbon steel, low-alloy steel, stainless steel and other types to meet different engineering needs.
Jan 19,2026
Performance characteristics of curved wall panels
No weld seam design: There is no butt joint or weld seam in the middle of the pipe body, and the surface is smooth, reducing the risk of leakage and improving reliability.
Jan 19,2026
Common materials for curved wall panels
Stainless steel: Strong corrosion resistance, surface can be treated with wire drawing, mirror finish, etc., suitable for high-end building curtain walls and interior decoration.
Jan 19,2026
Processing technology of thick walled conical steel pipe
Hot expansion process: After heating the seamless steel pipe, it is expanded into a cone shape through a mold, suitable for the production of large-diameter and thick walled pipes.
Jan 19,2026
Material selection of thick walled conical steel pipe
Carbon steel: mainly made of 20 # steel, it has good plasticity, toughness, and weldability. Its toughness is better after hot rolling or normalizing, and it is a commonly used material for conical steel pipes.
Dec 18,2025
Core characteristics of semi-circular tube
The unique semi-circular design of the semi-circular tube allows it to closely adhere to the base surface (such as tunnel arch walls, slope surfaces) during installation, with a contact area 40% larger than that of the circular tube, uniform stress distribution, and avoiding damage caused by local stress concentration. At the same time, its slim design (total thickness ≤ 120mm) can be laid in narrow spaces (such as underground garage roof interlayers) without the need for extensive excavation.
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