Pre Galvanized Steel Pipe is a cost-effective steel pipe coated with zinc before forming, offering good corrosion resistance and reliable performance for light to medium-duty applications. It is widely used in construction, furniture structures, scaffolding, and general industrial projects.
Material Type :
Mild Carbon Steel (Q195, Q235B)Outer Diameter Range :
13mm – 1200mmWall Thickness Range :
1.5mm – 30mmCustomizable :
YesOrder(MOQ) :
2TSpecifications
Pre galvanized steel pipes are manufactured by using pre-galvanized steel coils that are formed and welded into pipes, ensuring a uniform zinc coating on the surface. This process provides effective protection against rust in indoor and mildly corrosive environments.
These pipes are made from high-quality carbon steel with a zinc-coated surface layer, combining good mechanical strength with basic corrosion resistance. Compared with hot-dip galvanized pipes, they offer a smoother surface finish and more economical production cost.
Pre galvanized steel pipes are widely used in furniture frames, indoor structures, greenhouse systems, scaffolding, and light construction applications, where cost efficiency, moderate corrosion resistance, and structural reliability are required.
Pre 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, %) |
|---|---|---|---|---|
| Q195 Pre Galvanized Steel | GB/T 13793 Q195
|
Tensile 315–430 MPa
|
OD 10–150 mm
|
C≤0.12, Si≤0.30
|
| Q235B Pre Galvanized Steel | GB/T 13793 Q235B
|
Tensile 370–500 MPa
|
OD 10–200 mm
|
C≤0.22, Si≤0.35
|
| Q355B Low Alloy High Strength Pre Galvanized Steel | GB/T 13793 Q355B
|
Tensile ≥470 MPa
|
OD 10–200 mm
|
C≤0.24, Si≤0.55
|
| ASTM A653 Grade 33 Pre Galvanized Steel | ASTM A653 CS Type 33
|
Tensile 340–420 MPa
|
OD 10–200 mm
|
C≤0.15, Si≤0.30
|
| ASTM A653 Grade 50 High Strength Pre Galvanized Steel | ASTM A653 HSLA Grade 50
|
Tensile 485–620 MPa
|
OD 10–200 mm
|
C≤0.23, Si≤0.40
|
| EN 10346 DX51D+Z Pre Galvanized Steel | EN 10346 DX51D+Z
|
Tensile 360–510 MPa
|
OD 10–200 mm
|
C≤0.17, Si≤0.40
|
| EN 10346 S355GD+Z High Strength Pre Galvanized Steel | EN 10346 S355GD+Z
|
Tensile 470–630 MPa
|
OD 10–200 mm
|
C≤0.24, Si≤0.55
|
| 20# High Quality Carbon Pre Galvanized Steel | GB/T 8163 20#
|
Tensile 415–550 MPa
|
OD 10–150 mm
|
C 0.17–0.23, Si≤0.37
|
| 45# Medium Carbon Pre Galvanized Steel | GB 45#
|
Tensile ≥600 MPa
|
OD 10–150 mm
|
C 0.42–0.50, Si≤0.37
|
| 304 Stainless Steel Pre Galvanized Steel | UNS S30400
|
Tensile ≥515 MPa
|
OD 10–150 mm
|
C≤0.08, Cr 18.0–20.0
|
| 316 Stainless Steel Pre Galvanized Steel | UNS S31600
|
Tensile ≥515 MPa
|
OD 10–150 mm
|
C≤0.08, Cr 16.0–18.5
|
| Q420B High Strength Low Alloy Pre Galvanized Steel | GB Q420B
|
Tensile ≥520 MPa
|
OD 10–180 mm
|
C≤0.20, Si≤0.55
|
| Zinc-Aluminum-Magnesium Alloy Coated Pre Galvanized Steel Pipe | GB/T 31901 Zn-Al-Mg
|
Tensile 370–500 MPa
|
OD 10–200 mm
|
C≤0.22, Si≤0.35
|
|
Note: If you do not find a Pre 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 Pre 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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