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Hot-dip galvanized seamless steel pipe: the amount of hot dip plating is higher, the average thickness of the galvanized layer is more than 65 microns, and its corrosion resistance is much higher than that of the hot-dip galvanized pipe.
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Return Policy (Eligible for returns and refunds View details)Product Name | Galvanized steel seamless pipe and tube | |||
Material | 10#/20# /35# /45# /20Cr /40Cr /30CrMo /35CrMo /42CrMo /20CrMnTi 20CrNimo/40CrNimo/20Mn2/40Mn2/45Mn2/38CrMoAI/Cr12MoV/15CrmoG/ 2Cr1MoVG/20G/GCr15/60Si2Mn/09MnNiD/09CrM0Al/ 07Cr2AlMo/09CrCuSB/N钢/09CuPCrNiA/P91/P92/T91/ T11/T12/T22/10CrMo910/65Mn/30CrMnSi/20MnG | |||
Length | Random Length or Customer’s Requirements | |||
Standard | ASTM DIN GB JIS EN AISI | |||
Technique | Hot rolled or cold rolled or cold drawn | |||
Used | Widely used in,construction industry, MechanicalEngenieering, Aviation Equipment, Rail Transit Equipment | |||
MOQ | 2 Ton | |||
Payment terms | L/C at sight or T/T (30% as deposit) | |||
Packing | Export standard package or as customers' request | |||
Delivery time | Usually 7-15 dyas, or upon negotiation | |||
Price terms | FOB,CRF,CIF,EXW all acceptable | |||
Samples | Free samples are provided but the fright is borne by the buyer | |||
Contact | Fiona Whatsapp or Wechat:86-18651560206 Email:fiona@wxtzss.com | |||
Hot-dip galvanized seamless steel pipe: the amount of hot dip plating is higher, the average thickness of the galvanized layer is more than 65 microns, and its corrosion resistance is much higher than that of the hot-dip galvanized pipe. Regular galvanized pipe manufacturers, permitted to use cold galvanized pipe as water, gas pipe. The galvanized layer of cold galvanized steel pipe is an electric coating, and the zinc layer is independently layered with the steel pipe matrix. The zinc layer is thin, and the zinc layer is simply attached to the steel tube matrix and easy to fall off. Therefore, its corrosion resistance is poor.
Alloy Or Not : Is Alloy | Application : Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe |
Section Shape : Round | Special Pipe : API Pipe, Other, EMT Pipe, Thick Wall Pipe |
Standard : GB, AISI,ASTM,GB,DIN,BS,JIS | Length : 12M, 6m, 6.4M, Random Length or Customer's Requirements |
Certificate : API, RoHS, tisi, JIS | Tolerance : ±1% |
Processing Service : Welding, Punching, Cutting, Bending, Decoiling | Oiled or Non-oiled : Non-oiled |
Delivery Time : 8-14 days | Technology : Hot Rolled Cold Rolled |
Sample : Freely |
Hot-plated seamless tube is the reaction of molten metal with iron matrix to produce alloy layer, so that the matrix and the coating are combined. Hot dip galvanizing is to first pickling the steel pipe, in order to remove the iron oxide on the surface of the steel pipe, after pickling, through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank for cleaning, and then into the hot dip plating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
Cold plated seamless tube
Cold galvanized is electric galvanized, galvanized amount is very small, only 10-50g/m2, its own corrosion resistance is much different than hot galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electric galvanizing (cold plating). Only those small enterprises with obsolete equipment use electric galvanizing, of course, their prices are relatively cheap. In the future, cold galvanized pipes are not allowed to be used as water and gas pipes.
The difference between hot and cold galvanizing
Hot-dip galvanized seamless pipe: The steel tube matrix and the molten bath undergo complex physical and chemical reactions to form a tight zinc-iron alloy layer with corrosion resistance. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, its corrosion resistance is strong.
Cold galvanized seamless pipe: The zinc layer is an electric coating, and the zinc layer is independently layered with the steel pipe matrix. The zinc layer is thin, and the zinc layer is simply attached to the steel tube matrix and easy to fall off. Therefore, its corrosion resistance is poor. In new residential buildings, it is prohibited to use cold galvanized steel pipes as water supply pipes.
Q1. Where is your factory ?
A1: Our company’s processing center is located in Shangdong, China.
Which is well equipped with kinds of machines, such as laser cutting machine,mirror polishing machine and so on.
We can provide a wide range of personalized services according to the customers’ needs.
Q2. What are your company's main products ?
A2: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.
Q3. How do you control quality ?
A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available.
Q4. What are the advantages of your company ?
A4: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q5. How many coutries you already exported ?
A5: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt,Turkey, Jordan, India, etc.
Q6. Can you provide sample ?
A6: Small samples in store and can provide the samples for free.
Customized samples will take about 5-7days.
The company mainly deals in color-coated, galvanized, stainless steel pipes, stainless steel coils, stainless steel plates of various materials; hot-rolled series of rebar, medium and heavy plates, coils, I-beams, angle steels, channel steels, H-beams and other steel products and deep processing Service. (The company’s annual inventory is more than 50,000 tons).The company adheres to the concept of “integrity first, service-oriented”, relying on the strong strength of major domestic steel groups, exerting the company’s strong resource integration capabilities, and serving and satisfying the needs of customers both in China and at abroad.Additionally, Zhishang Steel also has a powerful and professional logistics distribution system, which can provide customers with efficient, fast and flexible logistics services at any time.Our business covers Southeast Asia, the Middle East, Africa, Australia, Europe, the United States and other countries.Looking forward to the future, in order to maintain in-depth and stable cooperation with customers both at home and abroad, all employees of Zhishang Steel will work harder to provide Better products and services to create more added value for customers.
