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Hot Dip Galvanized Steel Pipe ASTM A53 Zinc Coated GI Pipe for Construction and Water Transport

Short Description:

Hot Dip Galvanized Steel Pipe is a steel pipe coated with a layer of zinc through a hot-dip galvanizing process. The pipe is first manufactured (welded or seamless), then immersed in molten zinc to form a strong, corrosion-resistant protective layer.


  • Section Shape: Round
  • Standard: ASTM
  • Technique: Other, Hot Rolled, Cold Rolled,ERW,High-frequency welded,Extruded
  • Surface Treatment: Zero, Regular, Mini, Big Spangle
  • Tolerance: ±1%
  • Processing Service: Welding, Punching, Cutting, Bending, Decoiling
  • Delivery Time: 7-10 Days
  • Payment Clause: 30%TT advance, blance bfore shipment
  • Product Detail

    Product Tags

    steel pipe

    Product Detail

    In the construction of industrial and mining enterprises, galvanized steel pipes are used for liquid transportation: water supply and drainage (including industrial and civil cooling water).

    Standard ASTM A53 / A53M Wall Thickness Sch 10, Sch 40, Sch 80, STD, XS, XXS
    Type Type F (Furnace Welded), Type E (ERW), Type S (Seamless) Length 5.8m, 6m, 12m or Custom
    Grade Grade A, Grade B End Type Plain End / Beveled End / Threaded with Coupling
    Manufacturing Process Seamless / Electric Resistance Welded (ERW) Zinc Coating Typically 400–600 g/m² (customizable)
    Surface Treatment Hot-Dip Galvanized Inspection Hydrostatic Test, NDT, Dimension Inspection
    Outside Diameter 1/8" – 26" (10.3mm – 660mm) Certification Mill Test Certificate (MTC), Third-party inspection available

    Mechanical Properties (Grade A & B)

    Grade Yield Strength (min) Tensile Strength (min)
    Grade A 205 MPa 330 MPa
    Grade B 240 MPa 415 MPa

    hemical Composition (Max %)

    Grade C Mn P S Cu*
    Grade A 0.25 0.95 0.05 0.045 0.4
    Grade B 0.3 1.2 0.05 0.045 0.4

     

    Main Application

    1.Building structures and systems: Used in building frames, column, and support systems. High strength and excellent corrosion resistance for long-life stability of the structure.

    2.Water Supply & Drainage Systems: Used for transporting water in city and industrial pipelines. The zinc plate prevents the rust & prolongs the life-span.

    3.Scaffolding Systems: It is commonly seen in a variety of applications, from temporary construction scaffolds. It has a great capacity for load-bearing and security for working at height.

    4.Fencing & Outdoor Structures: It is also suitable for fence panels, handrails and greenhouse frames. Good performance outdoors, high weather resistance and anti-corrosion.

    galvanized steel pipe application

    Details

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    The thickness of zinc coats is 30g to 550g. It can be provided: hot-dip galvanizing steel pipe, electro-galvanizing steel pipe, pre-galvanizing steel pipe. After they receive the inspection reports, zinc coating production support is available. Thickness makes to order for tone contract specification. The tolerance for thickness of our process is ±0.01mm.V. Laser-cut nozzles guarantee clean and polished results Straight seam welded pipe with galvanized surface. Cutting lengths are 6-12 meters, with standard US lengths of 20ft and 40ft available. Or we can manufacture the product length such as 13 meters. With a warehouse capacity of production over 5000 tons every day, we can assure you the best delivery speed and reasonable price.

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    FAQ

    Q1: What is Hot Dip Galvanized Steel Pipe?

    A: It is a steel pipe coated with zinc by hot-dip galvanizing to improve corrosion resistance and extend service life.

    Q2: What is the main advantage of galvanizing?

    A: The zinc coating provides strong anti-rust protection, especially in outdoor and humid environments.

    Q3: What types of steel pipe can be galvanized?

    A: Both seamless and welded steel pipes can be hot-dip galvanized.

    Q4: What are the main applications?

    A: Construction, scaffolding, water pipelines, fencing, and industrial structures.

    Q5: Is customization available?

    A: Yes, size, thickness, length, and zinc coating can be customized.

    Q6: What inspection documents are provided?

    A: Mill Test Certificate (MTC), packing list, invoice, and third-party inspection if required.


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