Spiral steel pipes are mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, and are twenty key products developed. For liquid transportation: water supply, drainage. For gas transportation: gas, steam,

According to American Petroleum Institute standard APISPEC5CT1988 1st edition, petroleum casing steel grades H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P -110, Q-125 a total of 10 kinds. Oil casing shall be supplied with threads and couplings, or in any of the following pipe end forms: plain en

1. The surface of the anti-corrosion spiral steel pipe is cleaned with solvent and emulsion, which can remove the organic matter on the surface of the spiral steel pipe, but it cannot remove the surface rust, oxide scale, welding flux, etc., so cleaning can only be used as an auxiliary means.2. Use

Technical requirements of straight seam welded pipe: Technical requirements and inspection of straight seam welded pipe According to the GB3092 "Welded Steel Pipe for Low-Pressure Fluid Transport" standard, the nominal diameter of the welded pipe is 6~150mm, the nominal wall thickness is 2.0~6.0mm,