Gas pipe

steelgalvanised steelfor mining applications

Executive standard: GB/T13912-2002 Metallic Coatings — Hot Dip Galvanized Coatings for Steel Parts — Technical Requirements and Test Methods Performance features: 1. Light weight: compared with other pipes with the same specification and model, the weight is reduced by 70%; the labor intensify is low and the construction efficiency is fast; 2. Corrosion resistance: the spiral welded corrugated galvanized steel pipe is produced by hot-dip galvanizing process. The thickness of zinc layer is higher than the requirements in national standards for the thickness of zinc layer. The corrosion resistance lifetime of the pipeline is long; 3. High ring stiffness: the main requirement of the methane gas drainage pipes is the negative pressure performance. The experimental data shows that the ring stiffness meets SN16; 4. Uniform zinc layer: hot dip galvanized pipes have the uniform thickness of the zinc layer; 5. Strong adhesion: the galvanized steel strip pipes are treated by hot dip galvanizing process. Through the hammering method and the file method, the zinc layer has no peeling; 6. Low noise: since the inner wall of the pipe is smooth with no protrusion, the surface smoothness is high, thus the noise generated by the pipeline during operation is greatly reduced.