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ASTM A53 galvanized pipe is a hot-dipped or pre-galvanized steel pipe designed for structural and pressure applications. It is commonly used in water, gas, steam, and mechanical systems due to its high corrosion resistance, durability, and strength. The zinc coating provides long-term protection against rust, making it ideal for outdoor and industrial environments.
ASTM A53 galvanized pipe is a hot-dipped or pre-galvanized steel pipe designed for structural and pressure applications. It is commonly used in water, gas, steam, and mechanical systems due to its high corrosion resistance, durability, and strength. The zinc coating provides long-term protection against rust, making it ideal for outdoor and industrial environments.
Product Description
| Product | A53 Galvanized Pipe |
| Standard | ASTM A53 / ASME SA53 |
| Material | Carbon Steel |
| Grades | A53 Grade A, A53 Grade B |
| Outer Diameter (OD) | 1/2” – 48” (21.3mm – 1219mm) |
| Wall Thickness | SCH10, SCH20, SCH40, SCH80, SCH160, XXS |
| Length | 6m, 12m, or custom lengths |
| Pipe End | Plain End, Beveled End, Threaded & Coupled |
| Zinc Coating | 40g/m² – 600g/m² |
| Technique | ERW (Electric Resistance Welded), Seamless, LSAW, SSAW |
| Surface Treatment | Hot – Dipped Galvanized, Pre – Galvanized, Black Coated |
| Connection Type | Welding, Threaded, Flanged |
| Protection | Plastic Caps, Bundled with Steel Strips, Waterproof Wrapping |
| Certification | ISO, SGS, BV, CE |
| Stock Availability | 10,000+ Tons Per Month |
Chemical Composition of ASTM A53
| Element | Grade A (%) | Grade B (%) |
| Carbon (C) | ≤ 0.25 | ≤ 0.30 |
| Manganese (Mn) | ≤ 0.95 | ≤ 1.20 |
| Phosphorus (P) | ≤ 0.05 | ≤ 0.05 |
| Sulfur (S) | ≤ 0.045 | ≤ 0.045 |
| Copper (Cu) | ≤ 0.40 | ≤ 0.40 |
| Nickel (Ni) | ≤ 0.40 | ≤ 0.40 |
| Chromium (Cr) | ≤ 0.40 | ≤ 0.40 |
| Molybdenum (Mo) | ≤ 0.15 | ≤ 0.15 |
Mechanical Properties of ASTM A53
| Property | Grade A | Grade B |
| Yield Strength (MPa) | ≥ 205 MPa | ≥ 240 MPa |
| Tensile Strength (MPa) | 330 – 380 MPa | 415 – 550 MPa |
| Elongation (%) | ≥ 20% | ≥ 15% |
| Hardness (Brinell) | ≤ 90 HB | ≤ 100 HB |
Galvanized Coating Options
| Coating Type | Zinc Thickness | Application |
| Pre – Galvanized | 40 – 150 g/m² | Indoor & low – corrosion environments |
| Hot – Dipped Galvanized | 200 – 600 g/m² | Heavy – duty industrial & outdoor use |
Equivalent Grades
| Standard | Equivalent Grade |
| ASTM | A53 |
| EN | S235, S275 |
| JIS | STK400, STK500 |
| GB | Q195, Q235, Q345 |
Applications of A53 Galvanized Pipe
- Water and Gas Pipelines – Plumbing, water distribution, gas lines
- Structural Engineering – Bridges, scaffolding, fencing
- Mechanical & Industrial Use – Machinery parts, boilers, heat exchangers
- Construction & Infrastructure – Columns, frames, roofing structures
- Agriculture & Fencing – Greenhouses, irrigation systems
Why Choose A53 Galvanized Pipe?
✔ High Strength & Durability
✔ Excellent Corrosion Resistance
✔ Suitable for Structural & Pressure Applications
✔ Wide Range of Sizes & Wall Thicknesses
✔ Cost-Effective for Long-Term Use
Application
Agricultural Modernization
Construction Engineering
Environmental Protection Engineering
Food Processing Industry
Intelligent Home Appliances
Medical and Health Field
New Energy Infrastructure









