Q215A Hot Dip Galvanized Steel Pipe
Excellent Corrosion Resistance -- Hot-dip galvanized pipes form a dense zinc-iron alloy layer that integrates closely with the steel substrate. This strong bond significantly enhances the pipe’s resistance to rust and corrosion, making it ideal for long-term use in harsh environments.
Uniform and Durable Coating -- The hot-dip galvanizing process produces a consistent and evenly distributed zinc coating with strong adhesion. This ensures reliable protection across the entire surface of the pipe, minimizing weak spots that could otherwise lead to early damage.
Extended Service Life -- Thanks to the compact alloy layer and its seamless integration with the steel substrate, hot-dip galvanized pipes deliver outstanding durability. They provide long-lasting performance, reducing the need for frequent maintenance or replacement.
Strong Structural Integrity -- During the hot-dip process, the molten zinc reacts with the steel surface to form a robust protective barrier. This not only improves weathering resistance but also enhances the overall structural strength and stability of the pipe.
Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. 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 the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the in the hot dip bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate, so it has strong corrosion resistance.
Material Grade | Q195—Grade B,SS33, SPC, S185Q215—Grade C,CS Type B, SS330, SPHCQ235---Grade D, SS400, S235JR, S235JO, S235J2Q345---SS500, ST52 |
Standard | GB,JIS,ASTM,BS,DIN,API,... |
Wall Thickness | 0.13-4.0mm |
Zinc Coating | Pre galvanized steel pipe: 60-150g/㎡ Hot dipped galvanized steel pipe : 200-400g/㎡ |
OD | Round Pipe: 10mm-406.4mm |
Square Pipe: 10mm*10mm~500mm*500mm | |
Rectangular:10mm*20mm~400mm*600mm | |
Length | 5.8M;6M;12M... |
End type | 1)Plain; 2)Beveled; 3)Threaded; 4)Socket with holes; 5)with PVC clap/coupling/clamp |
Usage | The use is also very wide, from the general engineering structure to cars, Bridges, ships, boilers and pressure vessels and other manufacturing, have been used in large quantities. |
Certification | ISO9001,SGS,BV,CE... |
Trade Terms | EXW,FOB,CIF,CFR |
Loading Port | TIANJIN,SHANGHAI,DALIAN QINGDAO,etc |
Packing Detail | Standard export package:Wooden pallet +paperboard +steel strip Customized requirements are accepted |
Delivery time | Usually 7-15 days, or upon negotiation |
Samples | Free samples are provided but the fright is borne by the buyer |
Applications
Hot-dip galvanized steel pipes are widely used in construction, machinery, coal mines, chemicals, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, greenhouse construction and other manufacturing industries.
Galvanized steel pipe is a welded steel pipe with a hot-dip galvanized or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipes in the petroleum industry, especially in offshore oil fields, and oil heaters and condensers in chemical coking equipment. Pipes for coolers, coal distillation washing oil exchangers, and pipes for trestle piles, supporting frames for mine tunnels, etc.
Hot-dip galvanized and cold-galvanized appearance
The appearance of cold galvanizing is smoother and brighter, and the color passivation process coating is yellow-green and colorful. The coating is blue-white or white, the white passivation treatment is green, and the passivation treatment of the white coating is significantly colorful with the sun angle. The angular parts of complex workpieces are prone to "electric burning" and consist of dark, zinc-thick parts. It is easy to form a current dead dark current gray area at the inner corner, and the zinc layer in this area is relatively thin. The overall zinc nodule and agglomeration of the workpiece.
Hot dip galvanized looks a bit rougher and silvery white than electrogalvanized, and looks prone to process water lines and a few drops of tumor, especially on one end of the workpiece. The hot-dip galvanized zinc layer is several times thicker than electro-galvanized, and its corrosion resistance is several times that of electro-galvanized.
FAQ
Q: About the price of the product?
A: Due to the rise and fall of raw material prices, as well as factors such as the national power restriction policy, product prices will also fluctuate. Welcome to contact us to get the latest product price.
Q: Can you arrange shipment?
A: Of course, we have multiple warehouse locations as well as regular forwarders, and can get the best price from most shipping companies. Provide professional transportation services.
Q: How long will the delivery take?
A: Products that are in stock or only need simple processing, generally 5-15 days. If there is no stock, according to the required product quantity and the usual production time of this product, our professional sales staff will give you an approximate delivery time. According to past experience, in most cases, the delivery time will not exceed 45 days.
Q: What services do you provide?
A: 1. Provide samples, including conventional steel products and some customized steel structure products;
2. Support third-party product quality testing and provide various certificates
3. Provide pick-up and drop-off customer inspection service
4. Provide customized steel structure service
5. Provide simple steel processing, such as cutting, drilling, galvanizing, polishing and other services
6. Provide one-stop service, from product production to product transportation.
Q: How can I get your quotation as soon as possible?
A: You can contact us through various contact channels on the website, such as: phone number, email, WhatsApp, WeChat, etc. We will reply within one day. When you contact us, you can provide us with the product specifications you need, such as size, quantity, material, drawings and other information. In this way, we will be able to provide you with the most accurate product quotation immediately.
