Structural Galvanized Steel Pipe is a durable steel pipe designed for structural and construction applications, offering excellent corrosion resistance, strength, and long-term stability. It is widely used in building frameworks, scaffolding systems, infrastructure projects, and industrial structures.
Material Type :
Structural Carbon Steel (Q235B, Q355B)Outer Diameter Range :
20mm – 1600mmWall Thickness Range :
2.5mm – 40mmCustomizable :
YesOrder(MOQ) :
2TSpecifications
Structural galvanized steel pipes are manufactured using hot-dip galvanizing or pre-galvanized processes, forming a uniform zinc coating that effectively protects the steel surface from rust, moisture, and environmental corrosion. This ensures long service life even in harsh outdoor conditions.
These pipes are made from high-quality carbon steel, providing excellent mechanical strength, load-bearing capacity, and welding performance. The combination of steel substrate and zinc coating enhances both structural reliability and corrosion resistance.
Structural galvanized steel pipes are widely used in construction frameworks, support structures, scaffolding, bridges, greenhouses, and industrial engineering projects, where structural stability, durability, and corrosion protection are essential.
Structural Galvanized Steel Pipe is one of our core strength products. We maintain substantial inventory to ensure rapid delivery and can also customize extra-large diameter seamless pipes according to your specific requirements. Additionally, we provide comprehensive services including spectroscopic analysis, mechanical property testing, pressure testing, and non-destructive testing (NDT).
| Grade | Grade Equivalent | Mechanical Properties | Size Range | Chemical Composition (Typical, %) |
|---|---|---|---|---|
| Q235B Structural Hot Dip Galvanized Steel | GB/T 3091 Q235B
|
Tensile 370–500 MPa
|
OD 15–400 mm
|
C≤0.22, Si≤0.35
|
| Q355B Low Alloy High Strength Structural Galvanized Steel | GB/T 3091 Q355B
|
Tensile ≥470 MPa
|
OD 15–400 mm
|
C≤0.24, Si≤0.55
|
| ASTM A500 Grade A Structural Galvanized Steel | ASTM A500 Gr.A
|
Tensile 310–430 MPa
|
OD 15–400 mm
|
C≤0.26, Si≤0.40
|
| ASTM A500 Grade B Structural Galvanized Steel | ASTM A500 Gr.B
|
Tensile 400–550 MPa
|
OD 15–400 mm
|
C≤0.23, Si≤0.40
|
| ASTM A53 Grade B Structural Galvanized Steel | ASTM A53 Gr.B
|
Tensile ≥335 MPa
|
OD 15–400 mm
|
C≤0.30, Mn≤1.20
|
| EN 10255 S235JR Structural Galvanized Steel | EN 10255 S235JR
|
Tensile 360–510 MPa
|
OD 15–400 mm
|
C≤0.17, Si≤0.40
|
| EN 10255 S355JR High Strength Structural Galvanized Steel | EN 10255 S355JR
|
Tensile 470–630 MPa
|
OD 15–400 mm
|
C≤0.24, Si≤0.55
|
| 20# High Quality Carbon Structural Galvanized Steel | GB/T 8163 20#
|
Tensile 415–550 MPa
|
OD 15–300 mm
|
C 0.17–0.23, Si≤0.37
|
| 45# Medium Carbon High Strength Structural Galvanized Steel | GB 45#
|
Tensile ≥600 MPa
|
OD 15–300 mm
|
C 0.42–0.50, Si≤0.37
|
| Q420B High Strength Low Alloy Structural Galvanized Steel | GB Q420B
|
Tensile ≥520 MPa
|
OD 15–350 mm
|
C≤0.20, Si≤0.55
|
| 304 Stainless Steel Clad Structural Galvanized Steel | UNS S30400 Clad
|
Tensile ≥515 MPa
|
OD 15–300 mm
|
Base Material: C≤0.22, Si≤0.35, Mn≤1.40
|
| 316 Stainless Steel Clad High Corrosion Resistant Structural Galvanized Steel | UNS S31600 Clad
|
Tensile ≥515 MPa
|
OD 15–300 mm
|
Base Material: C≤0.22, Si≤0.35, Mn≤1.40
|
| Zinc-Aluminum-Magnesium Alloy Coated High Durability Structural Steel Pipe | GB/T 31901 Zn-Al-Mg
|
Tensile 370–500 MPa
|
OD 15–400 mm
|
C≤0.22, Si≤0.35
|
|
Note: If you do not find a Structural Galvanized Steel Pipe that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
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FAQs
Q: What types and standards of galvanized steel do you mainly supply?
A: We mainly supply hot-dip galvanized steel products including galvanized steel sheets, coils, strips, and pipes. Common base steel grades include DX51D+Z, DX52D+Z, DX53D+Z, and DX54D+Z. The zinc coating thickness typically ranges from Z20 to Z275 to meet different corrosion protection requirements. All galvanized steel products comply with international standards such as ASTM, JIS, and EN. We can also provide material test certificates (MTC) and support customized specifications according to customer requirements.
Q: Can you provide special specifications or non-standard customization? For example, extra-wide plates or pipes with specific wall thicknesses?
A: Of course. One of our advantages is our flexible customization capabilities. We can provide customized size cutting, special thicknesses, and special surface treatments (such as 2B, BA, No.4 brushed finish, mirror finish) based on your drawings or requirements. Whether it's a small trial order or a large-volume purchase, we can meet your needs.
Q: How do you guarantee the quality and consistency of materials? Do you have quality certifications?
A: Quality is our lifeline. We use direct supply from large steel mills to ensure material traceability. Each shipment comes with a Material Quality Certificate (MTC). We have our own quality control team that conducts random checks on material composition, dimensional tolerances, surface finish, and mechanical properties. Our factory is also ISO 9001:2015 quality management system certified.
Q: What are your delivery times and logistics solutions for overseas customers?
A: For standard-specification in-stock products, we can complete preparation and shipment within 7-14 days. Delivery times for customized products will be determined through negotiation based on the specific process. We have established international logistics partners who can arrange full container load (FCL), less-than-container load (LCL), or air freight according to your needs, and provide various trade terms such as EXW, FOB, CIF, and DDP, with door-to-door service.
Q: As a new customer, how do I begin cooperation? Can you provide samples for testing?
A: The cooperation process is very smooth: 1) You provide specific requirements (brand, specifications, quantity, standards); 2) We provide a quotation and technical advice; 3) After confirmation, we arrange the contract and payment; 4) Production/pickup and quality inspection; 5) Shipment and provision of documentation. We encourage sample testing. For serious customers, we can provide small-size samples to ensure that the materials fully meet your processing and application requirements.
|
Note: If you do not find a Structural Galvanized Steel Pipe that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
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