Q235B Welded Pipe Galvanized
Galvanizing a Q235B welded pipe involves applying a protective zinc coating to the surface of the steel to enhance its corrosion resistance. This process is commonly known as galvanization and is done to prevent rust and corrosion, especially in outdoor or corrosive environments.
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of q235b welded pipe galvanized in China, also supports customized service with low price. Welcome to wholesale discount q235b welded pipe galvanized for sale here from our factory. Contact us for free sample.
Surface Preparation: The surface of the Q235B welded pipe must be thoroughly cleaned to remove any rust, scale, or other contaminants. This is typically done through a process such as pickling or abrasive blasting.
Fluxing: After cleaning, the pipe is usually immersed in a flux solution. The flux helps to remove any remaining oxides and prepares the surface for the zinc coating.
Galvanizing Bath: The prepared Q235B welded pipe is then immersed in a bath of molten zinc. The temperature of the bath is typically around 450°C (850°F). The pipe is coated with a layer of zinc through a process called hot-dip galvanizing.
Quenching: After immersion in the zinc bath, the pipe is rapidly cooled or quenched. This process helps solidify the zinc coating and ensures a durable and uniform layer.
Inspection: The galvanized Q235B welded pipe undergoes inspection to ensure that the coating is uniform, adherent, and free of defects. Various tests may be conducted, such as coating thickness measurement, visual inspection, and adhesion tests.
Galvanizing provides effective corrosion protection to the Q235B welded pipe, extending its service life, especially in environments where it may be exposed to moisture, chemicals, or other corrosive elements. The zinc coating acts as a sacrificial layer, corroding preferentially to protect the underlying steel.
| Technique |
Longitudinal Electronic Resistance Welding (ERW) High Frequence Welding (HFW) |
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| Material Quality | Steel Grade | Q195 Q215 Q235 Q345,etc. |
| Material Type | Available in cold rolled and hot rolled | |
| Size | W.T. | 1.0mm-20.0mm |
| Diameter | 40x40mm | |
| Length | 1m-12m or as your requirement | |
| Surface |
Galvanized, 3PE, painting, coating oil, steel stamp, etc. |
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Ends |
Plain ends, cutting, threaded with coupling, beveled, flange, etc. |
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Inspection |
With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, With Nondestructive Inspection |
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Certification |
BV, ISO, IAF or as per customer. |
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Application |
construction pipe, structure pipe, Greenhouse pipe, Building material tube, Furniture tube, etc |
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Trade Terms |
FOB, CFR, CIF, EXW. |
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Payment Terms |
T/T,L/C at sight
30%T/T in advance,balance 70% should be paid after receiving the copy of BL. |
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Loading Port |
Tianjin Xingang |
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Cooperation Ship-owner |
MSK, CMA, MSC, HMM, COSCO, UA, NYK, OOCL, HPL, YML, MOL | |
FAQ:
1: Why choose us?
A: We have been servicing our customers and the projects in Canada, South America, Southeast Asia ,Central Asia, Middle East, South Africa, North Africa and North Europe market for 15 years.
1. How can I get a quotation from you ?
You can leave us message, and we will reply every message in time.Or by email.And you can also find our contact information on contact page.
3.Can I get samples before order ?
Yes, of course.Samples can be provided with samples' charge and courier fee by the buyer's side. we can produce by your samples or technical drawings. We can build the molds and fixtures.
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