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HDG seamless steel tubes

HDG seamless steel tubes are seamless steel pipes coated with a layer of zinc. The zinc provides a barrier against moisture and oxygen, which can cause iron and steel to corrode. Including HDG round seamless pipe, HDG seamless rectangular tube, and HDG seamless square tube. Widely used in industry,  construction, highway billboards, and fire fighting.
Product name: HDG seamless steel tubes;Hot dip galvanized steel pipe;Hot galvanized seamless steel Pipe;Hot galvanized seamless pipe
Standard:  ASTM A153, A53, EN10255, DIN2440, BS1387 etc.
Materials: Gr.B, S195T, ST35, ST52 etc.
Product Details

Pipe galvanizing is the process of coating iron or steel with a layer of zinc. This helps to prevent corrosion and rust and is often used on pipes that will be exposed to the elements. The zinc provides a barrier against moisture and oxygen, which can cause iron and steel to corrode. In addition, zinc protects the metal from being damaged by ultraviolet light. The process of pipe galvanizing can be done in two ways: hot-dip galvanizing or pre-galvanizing. Hot-dip galvanizing involves dipping the pipes into a vat of molten zinc, while pre-galvanizing involves rolling galvanized coils into pipes. Both methods are effective at protecting the metal from corrosion, but hot-dip galvanizing is generally considered to be more durable. Pipe galvanizing is an important process that helps to prevent corrosion and rusting, and extends the life of metal pipes.

HDG seamless steel tube type

HDG round pipe, HDG square pipe, HDG rectangular pipe

HDG seamless steel tube specification:
Size: 1/2”-48”
Thickness: sch5-sch160
Surface: oiling, spraying black paint ( or varnish), galvanized, 3PE, FBE epoxy anti-corrosion coating etc.

HDG seamless steel tube production process

Pickling and hot dip galvanizing
Zinc layer thickness: 20μm; 30μm;50μm;60μm or as require

WHY USING PIPE GALVANIZING?

Without pipe galvanizing, corrosion is a persistent danger to metal; therefore, it must be protected. It is possible to create oxidation in metal when corrosive elements such as salt, dirt, moisture, or chemicals come into contact with the iron in the metal. Rust is formed as a consequence of the reaction. Because of the corrosion of metal, pipes are at risk of collapsing or exploding.

Adding a coating of zinc to metal during the pipe galvanizing process serves to protect it against corrosion. This zinc reinforcement provides two types of protection for metals:

  • It acts as a protective barrier between the sensitive iron and the corrosive elements.

  • Galvanic corrosion is prevented by using this product. When compared to the majority of metals, zinc exhibits significantly anodic characteristics. When it comes into touch with a more noble metal, it acts as an anode, releasing electrons very immediately. When a noble metal would otherwise be taking electrons from carbon steel or another basic metal, this sacrifice comes in useful.

HDG seamless steel tube application

Widely used in industry,  construction, highway billboards, fire fighting.

HDG seamless steel tube quality inspection:

1. Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate

2.Control quality strictly.The first pass is the quality inspection on the production line,The second pass is full inspection of the  production quality .

3.We have got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.

HDG Seamless steel tubesHot galvanized seamless pipeHot galvanized seamless steel Pipe

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