High-Strength Hot-Dipped S460NH Galvanized Square Steel Tube from China Suppliers and Factory for Structural Applications
Hot-Dipped S460NH Galvanized Square Steel Tube
The Hot-Dipped S460NH Galvanized Square Steel Tube stands as the premier choice for engineers and builders demanding exceptional strength, superior durability, and long-lasting corrosion protection. Engineered from high-grade S460NH steel—known for its high yield strength and excellent atmospheric corrosion resistance—and fortified through a rigorous hot-dip galvanizing process, this square tube delivers unmatched performance in the most demanding environments. It is the definitive material for projects where structural integrity, longevity, and safety are non-negotiable.
Highlights & Key Benefits
This product excels through its combination of advanced material science and robust manufacturing:
- ● Exceptional Strength & Durability: Fabricated from S460NH steel, it offers a minimum yield strength of 460 MPa, enabling lighter, stronger structures that withstand heavy loads and high stress.
- ● Superior Corrosion Defense: The hot-dip galvanizing process creates a metallurgically bonded zinc coating that provides sacrificial protection, significantly outperforming pre-galvanized or painted alternatives. It resists rust in harsh conditions for decades.
- ● Excellent Weldability & Formability: The S460NH grade is designed for good weldability, allowing for easy integration into complex frameworks. Its square shape offers practical flat surfaces for simplified connections and fabrication.
- ● Long-Term Cost Efficiency: The minimal maintenance requirements and extended service life provided by the robust zinc coating translate to significantly lower total ownership costs over the project lifecycle.
- ● Enhanced Safety & Reliability: The combination of high structural strength and consistent corrosion protection ensures a safe, reliable, and stable performance throughout its extensive service life.
Product Parameters
| O.D. (mm) | W.T. (mm) | O.D. (mm) | W.T. (mm) |
|---|---|---|---|
| 1.50 | 1.70 | ||
| 20*20 | 1.70 | 2.00 | |
| 2.00 | 2.20 | ||
| 2.5~2.75 | 2.50 | ||
| 1.50 | 60*80 | 2.75 | |
| 1.70 | 3.00 | ||
| 20*30 | 2.00 | 3.5~4.0 | |
| 25*25 | 2.20 | 4.5~4.75 | |
| 2.50 | 5.5~5.75 | ||
| 2.75 | 1.50 | ||
| 1.50 | 1.70 | ||
| 1.70 | 2.00 | ||
| 30*30 | 2.00 | 50*100 | 2.20 |
| 20*40 | 2.20 | 2.50 | |
| 2.50 | 2.75 | ||
| 2.75 | 3.00 | ||
| 1.50 | 3.5~3.75 | ||
| 1.70 | 4.5~4.75 | ||
| 2.00 | 5.5~5.75 | ||
| 30*50 | 2.20 | 2.00 | |
| 30*60 | 2.50 | 2.20 | |
| 2.75 | 2.50 | ||
| 3.00 | 100*100 | 2.75 | |
| 3.5~3.75 | 80*120 | 3.00 | |
| 1.50 | 3.5~4.0 | ||
| 1.70 | 60*120 | 4.5~4.75 | |
| 40*40 | 2.00 | 5.5~5.75 | |
| 50*70 | 2.20 | 7.5~7.75 | |
| 50*50 | 2.50 | 2.50 | |
| 40*60 | 2.75 | 50*150 | 2.75 |
| 40*50 | 3.00 | 3.00 | |
| 3.5~4.0 | 3.5~4.75 | ||
| 4.5~4.75 | 80*140 | 2.50 | |
| 1.50 | 80*160 | 2.75 | |
| 1.70 | 100*150 | 3.00 | |
| 2.00 | 120*120 | 3.5~5.75 | |
| 2.20 | 7.5~7.75 | ||
| 40*80 | 2.50 | 2.50 | |
| 60*60 | 2.75 | 2.75 | |
| 3.00 | 3.00 | ||
| 3.5~4.0 | 150*150 | 3.5~3.75 | |
| 4.5~4.75 | 100*200 | 4.5~6.0 | |
| 1.50 | 7.5~7.75 | ||
| 1.70 | 9.5~9.75 | ||
| 2.00 | 3.50 | ||
| 60*100 | 2.20 | 3.75 | |
| 80*100 | 2.50 | 180*180 | 4.50 |
| 70*70 | 2.75 | 150*200 | 4.75 |
| 75*75 | 3.00 | 5.5~5.75 | |
| 80*80 | 3.5~4.0 | 7.5~7.75 | |
| 90*90 | 4.5~4.75 | 9.5~9.75 | |
| 5.5~5.75 | 2.75 | ||
| 2.00 | 3.00 | ||
| 2.20 | 3.50 | ||
| 2.50 | 200*200 | 3.75 | |
| 50*80 | 2.75 | 4.50 | |
| 50*90 | 3.00 | 4.75 | |
| 60*90 | 3.5~4.0 | 5.5~5.75 | |
| 4.5~4.75 | 7.5~7.75 | ||
| 5.5~5.75 | 9.5~9.75 |
Versatile Application Spectrum
The Hot-Dipped S460NH Galvanized Square Steel Tube is indispensable across a vast range of critical industries:
- 1 Building & Construction: Core structural material for modern steel structure projects, glass curtain walls, stadiums, and high-rise buildings.
- 2 Industrial Infrastructure: Ideal for power plant engineering, electrical projects, heavy mechanical manufacturing, and agricultural/chemical machinery.
- 3 Renewable Energy & Transportation: The preferred choice for robust solar power mounting systems, supporting structures in shipbuilding, and frameworks for automobile chassis and airport facilities.
Commitment to Premium Manufacturing
Our product undergoes a stringent two-stage manufacturing protocol to guarantee top quality:
◆ Pre Galvanized Hollow Sections Manufacturing Process:
Galvanized coil uncoiling → Trimming and butt welding → Straightening → Roll cold forming → High-frequency welding → Removing excess welding bars → Water cooling → Sizing → Cutting → Testing (removing joint pipes) → Spray labeling and storage
◆ Hot Dipped Galvanized Hollow Sections Manufacturing Process:
Black tube → Degreasing → Acid washing → Rinsing → Immersion agent → Drying → Immersion plating → Tube lifting → External blowing → Internal blowing → Water cooling → Inspection → Passivation → Spray label packaging
Global Material Compliance
Yuantai Derun provides Square Steel Pipes in diverse steel grades meeting international standards, including the European S460 series (like S460NH), American ASTM, Japanese JIS, Chinese GB, and Canadian CSA. This ensures compliance and performance for projects worldwide:
- ★ American Standard (ASTM): Gr. A, B, C, etc.
- ★ European Standard (EN): S235, S275, S355, S420, S460, etc.
- ★ Japanese Standard (JIS): SS400, STKR400, STKR490, etc.
- ★ Chinese Standard (GB): Q195, Q235, Q355, etc.
- ★ Canadian Standard (CSA): 300W, 350W, etc.
For a detailed quotation tailored to your needs, please share your specific steel grade requirements with us today.
Yuantai Derun Square Steel Pipes – Quality You Can Trust
At every step—from raw materials to finished pipes—Yuantai Derun maintains strict quality control. We use only traceable materials from trusted suppliers. All pipes undergo thorough testing, such as:
🔍
Dimensional & Visual Checks
Appearance, size, and straightness inspection
Appearance, size, and straightness inspection
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Mechanical Testing
Strength, hardness, and impact resistance
Strength, hardness, and impact resistance
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Material Analysis
Chemical composition and metallographic tests
Chemical composition and metallographic tests
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Non-Destructive & Corrosion Tests
Ultrasonic testing (UT) and salt spray testing
Ultrasonic testing (UT) and salt spray testing
Tell us your testing needs. We ensure every pipe is precise and reliable. Contact us today.
Frequently Asked Questions (FAQ)
Q
What is the minimum yield strength of S460NH steel used in these galvanized square tubes?
S460NH steel offers a minimum yield strength of 460 MPa. This high yield strength allows engineers to design lighter yet stronger structural frameworks capable of withstanding heavy loads and elevated stress levels in demanding applications.
Q
What is the difference between hot-dip galvanizing and pre-galvanizing for square steel tubes?
Hot-dip galvanizing immerses the finished tube in molten zinc, creating a metallurgically bonded coating that provides superior sacrificial protection and significantly longer corrosion resistance—often lasting decades. Pre-galvanizing applies the zinc coating to the steel coil before tube forming, which can leave exposed edges at welds. Hot-dip galvanizing offers more comprehensive and durable protection overall.
Q
What size ranges are available for the Hot-Dipped S460NH Galvanized Square Steel Tube?
The product is available in a wide range of outer dimensions, from as small as 20×20 mm up to 200×200 mm and rectangular profiles such as 100×200 mm and 150×200 mm. Wall thicknesses range from 1.50 mm up to approximately 9.75 mm, covering a broad spectrum of structural requirements.
Q
Which international standards does Yuantai Derun's galvanized square steel tube comply with?
Yuantai Derun supplies square steel pipes compliant with multiple international standards, including American ASTM (Gr. A, B, C), European EN (S235, S275, S355, S420, S460), Japanese JIS (SS400, STKR400, STKR490), Chinese GB (Q195, Q235, Q355), and Canadian CSA (300W, 350W). This wide compliance ensures suitability for global projects.
Q
What quality testing procedures are applied to each galvanized square steel tube?
Every pipe undergoes a comprehensive quality inspection program including dimensional and visual checks (appearance, size, straightness), mechanical testing (strength, hardness, impact resistance), material analysis (chemical composition and metallographic tests), and non-destructive and corrosion tests such as ultrasonic testing (UT) and salt spray testing to ensure long-term reliability.
Q
What are the typical applications for the Hot-Dipped S460NH Galvanized Square Steel Tube?
This product is widely used across building and construction (steel structures, glass curtain walls, stadiums, high-rise buildings), industrial infrastructure (power plants, electrical projects, mechanical manufacturing, agricultural and chemical machinery), and renewable energy and transportation sectors (solar power mounting systems, shipbuilding support structures, automobile chassis, and airport facilities).