1. Pollution and corrosion resistance Corrosion is the main enemy of metal pipes. The outer surface of steel, iron and concrete pipes is degraded by soil and ultraviolet rays. The inner walls of pipes made of other materials are prone to rust, be damaged by wear or accumulate debris. However, due to the corrosion resistance of stainless steel, this…
Read More1. Grade and chemical composition The grade and chemical composition of the steel for galvanized steel pipes shall comply with the grade and chemical composition of the steel for black pipes specified in GB3092. 2. Manufacturing method The manufacturing method of the black tube (furnace welding or electric welding) is selected by the manufacturer. Galvanizing uses hot-dip galvanizing. 3.Screw…
Read MoreThe control of the wall thickness of seamless steel pipe is a difficult point in the production of steel pipes. The measures to improve the accuracy of the wall thickness in the production mainly include the following aspects: 1. Tube billet heating Heating must be uniform, and rapid temperature rise and fall are prohibited. The temperature rise and fall…
Read More1) Appearance defects such as crack, folding, heavy skin, hair grain, pinhole. Generally magnetic particle testing or soak detection is used. For ferromagnetic material, magnetic powder assay should be adopted preferentially, because it has higher flexibility of detection; for non-ferromagnetic material, such as stainless seamless steel pipe, soak test is used. 2) Steel pipe end defects. When obligate excision…
Read MoreYear: 2014 Country: UAE Quantity: 3780MT Product: ERW, SSAW steel pipe Project: Dubai Water Transportation Coated Pipeline Project Standard and Specification: API 5L GR.B 610-1000MM 3LPE
Read MoreYear: 2014 Country: China Quantity: 780MT Product: SSAW steel pipe Project: China Underground Water Transportation Coated Pipeline Project Standard and Specification: 1219MM 3LPE/Epoxy
Read MoreYear: 2014 Country: Ecuador Quantity: 600MT Product: SSAW steel pipe Project: Ecuador Gas and Petroleum Coated Pipeline Project Standard and Specification: API 5L X65 762-914MM 3LPE Coating
Read MoreThe common method of cutting straight seam steel pipes is gas cutting, which uses the heat generated by the combustion of oxygen and acetylene to melt the cut metal at high temperature to produce iron oxide slag, and then blows the slag away from the metal with a high-pressure oxygen gas flow. The straight seam steel pipe is cut….
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
