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Wholesale ASTM A53 GI Galvanized Steel Pipe | Hot Dip Steel Pipe Manufacturer

Short Description:

ASTM A53 GI Galvanized Steel Pipe manufactured for North American construction, infrastructure, and industrial projects. Hot-dip galvanized for enhanced corrosion resistance, available in custom sizes and specifications with competitive factory pricing and worldwide shipping.


  • Alloy Or Not: Non-Alloy
  • Section Shape: Round
  • Standard: AiSi, ASTM, BS, DIN, GB, JIS, GB/T3094-2000,GB/T6728-2002,ASTM A500,JIS G3466,DIN EN10210,or others
  • 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

    Galvanized steel pipe is the workhorse for liquid transportation in industrial and mining construction — covering water supply and drainage, including industrial and civil cooling water.

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

    Structural Steel Solutions

    A53 galvanized pipe carries load-bearing frames in warehouses, factories, commercial and agricultural buildings — especially prefab steel structures in the U.S.

    Tensile strength up to 415 MPa (Grade B)
    Welds and works easily
    Zinc coating, 20+ year service life
    Columns, supports, secondary structures

    System Scaffolding

    Strong, durable, and happy outdoors — threaded ends assemble fast, and the pipe takes repeated reuse on high-rise, bridge, and civil jobs.

    High load-bearing capacity
    Rust-resistant, reusable outdoors
    Low maintenance

    Gas and Water Piping

    A53 galvanized pipe holds pressure and shrugs off moisture in low-pressure water and gas lines. Threaded or welded joints install fast — a staple in municipal, residential, and small commercial work, plus building supply/drainage and compressed air.

    Strong internal pressure resistance
    Rust-proof coating
    Fast threaded or welded installation

    Fire Protection Systems

    Royal Steel's galvanized pipe is a go-to for fire sprinkler and extinguishing systems — pressure-rated, corrosion-resistant, and compatible with threaded and grooved fittings, meeting fire-safety rules for warehouses, malls, and factories.

    High pressure resistance
    Threaded and grooved connections
    Meets building fire-safety requirements

    Mechanical and Industrial Piping

    For plant and factory use, A53 galvanized pipe carries air, water, and other non-corrosive fluids (low-pressure only). Typical jobs:

    Compressed air lines
    Cooling water circulation
    Equipment support and mechanical connection piping

    Electrical Conduit Systems

    It also works as electrical conduit — fire-resistant metal that protects cables and holds up indoors or out, in power plants, factories, roads, and bridges.

    Mechanical protection for cables
    Fire-resistant
    Corrosion-resistant for long-term safety

     

    galvanized steel pipe application

    Details

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    FAQ

    1. What is ASTM A53 galvanized steel pipe?

    ASTM A53 galvanized pipe is carbon steel pipe made to ASTM A53 requirements, then coated with zinc for corrosion resistance. You'll see it most in construction, fencing, water systems, and industrial work.

    2. What sizes are available?

    We supply galvanized pipe across a wide range of outside diameters, wall thicknesses, and lengths. Schedule 40 and other schedules are available to match your project.

    3. Is the pipe hot-dip galvanized?

    Yes. Hot-dip galvanizing is our standard option for extra corrosion protection. Coating requirements can be set to the applicable standard or your own spec.

    4. What zinc coating options do you offer?

    Coating weight and thickness follow the specification you need — we'll match the coating to the application, environment, and corrosion resistance required.

    5. Can you provide ASTM certificates and inspection documents?

    Yes. Material test certificates, inspection reports, dimensional records, and other quality documents come with the order, as your project requires.

    6. Can the pipe be customized?

    Yes — diameter, wall thickness, length, zinc coating, threading, grooving, end finish, marking, and export packaging can all be customized.

    7. What's the MOQ and price?

    MOQ and price depend on size, wall thickness, steel grade, zinc coating, and order quantity. Send us your requirements and we'll come back with a competitive quote.

    8. How do you ship to North America?

    We ship by container from major Chinese ports to destinations across the U.S., Canada, and Mexico — with export packaging, container loading, shipping documentation, and common trade terms (FOB, CFR, CIF) all handled.

    ROYAL GROUP

    Address

    Kangsheng development industry zone,
    Wuqing district, Tianjin city, China.

    Hours

    Monday-Sunday: 24-hour Service


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