Q235B Hot Rolled Galvanized Steel Pipe
Highlights:
Hot rolled galvanized pipe tube
Q235B galvanized pipe tube
ISO9001 certified
Payment Terms: L/C, D/A, D/P, T/T, Western Union
Product Description
Q235B Carbon Steel Pipe is a low carbon structural steel pipe manufactured from strip steel coils and welded using automatic double-wire double-sided submerged arc welding. The pipe offers high mechanical strength, excellent tensile resistance, and good formability, making it ideal for a wide range of applications.
This steel grade is typically rolled into thin plates, wire rods, steel bars, welded pipes, and other components. It finds applications in bridges, buildings, factories, automobiles, vehicles, and various welded structures. Q235B is known for good overall performance, moderate carbon content, and suitability for ordinary use.
Products Applications
Q235B Galvanized Pipes are widely used in:
Water Supply & Irrigation: Plumbing systems for homes and commercial buildings, agricultural irrigation pipelines.
Industrial Uses: Petrochemical, chemical, and electric power industries.
Construction & Engineering: Bridges, buildings, factory structures, scaffolding, and reinforced concrete frameworks.
Automotive & Transportation: Vehicle components and welded structures.
Other Uses: Fences, railings, and farm irrigation systems.
Specifications & Dimensions
| Parameter | Value |
|---|---|
| Standard | AISI, ASTM, DIN, JIS, GB, SUS, EN |
| Length | 100–600 mm (custom lengths available) |
| Width | 800–2000 mm |
| Tolerance | ±1% |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting |
| Surface Finish | 2B |
| Delivery Time | 15–21 days |
Pipe Sizes:
Section Shape: Round, Square, Rectangle
Wall Thickness: 1–20 mm (depending on application)
Length: 100–600 mm (customizable)
Material Grades: Q195, Q235, Q235B, Q345
Chemical Composition
| Grade | C % | Si % | Mn % | P % | S % | Ti % |
|---|---|---|---|---|---|---|
| SGCC/DX51D+Z | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.030 | ≤0.020 |
| DX52D+Z | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.030 | ≤0.020 |
| SGCD/DX53D+Z | ≤0.10 | ≤0.30 | ≤0.50 | ≤0.05 | ≤0.030 | ≤0.020 |
| SGCE/DX54D+Z | ≤0.10 | ≤0.30 | ≤0.30 | ≤0.03 | ≤0.020 | ≤0.020 |
| DX56D+Z | ≤0.10 | ≤0.30 | ≤0.30 | ≤0.03 | ≤0.020 | ≤0.020 |
| Structural | ≤0.20 | ≤0.60 | ≤1.70 | ≤0.10 | ≤0.04 | – |
Mechanical Properties
Tensile Strength: 350–500 MPa
Yield Strength: ~235 MPa
Grades: A, B, C, D (A–C higher quality)
Advantages: Good weldability, no hot cracks, less segregation, corrosion and rust resistance
Comparison: Q235B offers more comprehensive mechanical properties compared to SS400 or A36, making it suitable for welding steel structures and reinforced concrete applications.
