galvanized steel pipe supplier
produces high-quality stainless steel pipe & tube , and is one of the top ten high-quality stainless steel pipe & tube manufacturers and suppliers in China. We have extensive experience and customization capabilities in pipe production, and our employees are qualified according to all current welding and seamless procedures, thus guaranteeing our customers that straight seam welded stainless steel pipe & tube meets the requirements. Our high-quality tubing is widely used all over the world, such as food industry tubing, pharmaceutical industry tubing and biochemical tubing. All of our stainless steel pipe & tube can be custom cut and polished to meet your exact specifications.
Galvanized sheet/coil specifications: The thickness of 0.15~0 is more commonly used for color-coated substrates, etc. 0.15~5 are very commonly used specifications, width 914~1500 Galvanized sheet material: SGCC DC51D The most common grade, zinc layer of galvanized sheet: 60-100 galvanized layer is commonly used, 275 is a relatively thick zinc layer.
Generally speaking, the thicker the galvanized sheet, the greater the allowable error, which is not a fixed 0.02-0.04 mm. The thickness deviation also has different requirements according to the yield, tensile coefficient, etc. The length and width deviation is generally 5mm. The thickness of the plate Generally between 0.4-2.
| Item | Galvanized Pipe |
|---|---|
| Length | 1-12m or as required |
| Width | 0.6m-3m or as required |
| Thickness | 0.1mm-300mm or as required |
| Standard | AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc. |
| Technique | Hot diped ， Electroplating diped |
| Surface Treatment | Clean, blasting and painting according to customer requirement |
| Thickness tolerance | 0.15mm |
Hot-dip galvanizing pipe reacts molten metal with an iron matrix to produce an alloy layer, thereby combining the matrix and the coating. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in an aqueous solution of ammonium chloride or zinc chloride or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to in a hot dip plating tank.
Cold-dip galvanized pipe is electro-galvanized. The amount of galvanizing is very small, only 10-50g/m2. Its corrosion resistance is much worse than that of hot-dip galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electro-galvanizing (cold plating). Only small businesses with small scale and old equipment use electro-galvanizing, and of course their prices are relatively cheaper. The Ministry of Construction has officially announced that cold-galvanized pipes with backward technology will be phased out and cold-galvanized pipes are not allowed to be used as water and gas pipes.
Hot-dip galvanized steel pipes are widely used in construction, machinery, coal mines, chemical industry, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, exploration machinery, greenhouse construction and other manufacturing industries.
The process flow is: clarinet – alkali washing – water washing – pickling – water rinsing – dipping agent – drying – hot dip galvanizing – external blowing – internal blowing – air cooling – water cooling – Passivation – Water rinsing – Inspection – Weighing – Storage.
What product information must I provide before making a purchase?
Please provide the grade, width, thickness, and surfacetreatment requirements, as well as the quantities you require.What shipping ports are there
We normally ship from Shanghai,Tianjin, Qingdao, and Ningbo portsWhat are your payment terms?
30% T/T in advance and 70% balance before shipment or based onBL copy or LC at sight.
Is it possible to send samples?
Of course, we offer free samples and express shipping to customers all over the world.
Can you assist me in importing steel products for the first time?
Yes, we have shipping agent who will arrange the shipment with you.