Hot dip galvanizing tube is an alloy layer produced by the reaction of the molten metal with the iron matrix, so that the matrix and the coating are combined. Hot-dip galvanizing involves pickling the steel pipe first. To remove the iron oxide on the surface of the steel pipe, after pickling, the steel pipe is cleaned through the aqueous solution of ammonium chloride or zinc chloride or the aqueous solution of ammonium chloride and zinc chloride mixed, and then sent to the hot-dip plating bath. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.Ordering hotline: +86 186-3716-6983 Click to Chat
Hot dip galvanizing tube is an alloy layer produced by the reaction of the molten metal with the iron matrix, so that the matrix and the coating are combined. Hot-dip galvanizing involves pickling the steel pipe first. To remove the iron oxide on the surface of the steel pipe, after pickling, the steel pipe is cleaned through the aqueous solution of ammonium chloride or zinc chloride or the aqueous solution of ammonium chloride and zinc chloride mixed, and then sent to the hot-dip plating bath. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
Straight seam welded pipe production technology is simple, high production efficiency, low cost, rapid development. Spiral welded pipe generally has higher strength than straight welded pipe. Welded pipe with larger pipe diameter can be produced from narrow blank, and welded pipe with different pipe diameters can also be produced from blank of the same width. However, compared with the same length of straight seam pipe, the weld length is increased by 30~100%, and the production speed is lower.
Large diameter or thicker welded pipe, generally made of steel blank, while small welded pipe thin-wall welded pipe only needs to be welded directly through the steel belt can be. Then after a simple polishing, the wire will be fine.
Supplement: welded pipe is welded with strip steel, so in the original position of it is not as high as seamless pipe
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PPGI steel coil combines long-service life with fashion appearance. Thanks to its good workability, PPGI coil can be further processed into plain or profile sheets for different uses. It is widely used in different industries, such as construction, automobile, furniture, home appliances, etc. Considering its wide applications, it is promising to invest in PPGI coils for business. Wanzhi Steel has its own factory and advanced production line to offers various colors and custom patterns of pre-painted galvanized steel coils to choose from. The thickness ranges 0.12-1.2 mm, and the width is from 600 to 1,250 mm. Welcome to contact us for more information!Read more
Galvalume Steel Coil is a kind of Alloy-Coated Steel Sheet widely used in building materials, household appliances,automobiles, environment, machinery, ships and many other fields. The surface coating of galvalume steel sheet is composed of 55% aluminium, 43.5% zinc and a small amount of other elements. 1. Heat reflectivity: Aluminum-coated galvanized steel sheet has a high thermal reflectivity, which is twice as high as galvanized steel sheet. It is often used as insulation material. 2. Heat resistance: Aluminum-zinc alloy steel sheet has good heat resistance and can withstand high temperatures of more than 300 degrees Celsius. 3. Corrosion resistance: The corrosion resistance of aluminized and galvanized steel coils is mainly due to the protective function of aluminium and aluminium. When zinc is abraded, aluminium forms a dense layer of alumina,which prevents further corrosion of corrosion-resistant substances. 4. Economy: Because the density of 55% Al-Zn is smaller than that of Zn, the area of galvanized steel sheet is more than 3% larger than that of galvanized steel sheet under the same weight and thickness of gold plating. 5. Easy to paint: Aluminum-coated galvanized sheet and paint have excellent adhesion and can be painted without pretreatment and weathering treatment. 6. Aluminum-galvanized steel sheet has a silver-white gorgeous surface.Read more
Color coated steel coil & sheet & surface material for making writing board, like whiteboard & green board & blackboard steel coil & sheet & surface material.Read more
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