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Help CenterH-beam 250x250x9x14mm Q345B Steel 12m Length Hot Dip Galvanized
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Hemaokang Steel (Shandong) Co., Ltd., established in 2025 with an annual export value of US$50-100 million and a team of 51-100 employees, is proud to present our premium H-beam 250x250x9x14mm Q345B Steel in 12-meter lengths with hot dip galvanized finish. This structural beam is engineered to meet the rigorous demands of modern construction and infrastructure projects, offering exceptional strength, corrosion resistance, and dimensional accuracy. Backed by our ISO9001 quality management system, every beam is produced under strict quality controls to ensure consistent performance. Whether you are building high-rise structures, bridges, or industrial facilities, this H-beam delivers the reliability and durability your project requires.
Product Features & Advantages
- Precision Dimensions: 250x250x9x14mm (height x width x web thickness x flange thickness) with tight tolerances, ensuring easy assembly and consistent load-bearing performance.
- High-Strength Q345B Steel: Yield strength of 345 MPa, excellent for heavy-load structures; superior weldability and machinability.
- Hot Dip Galvanized Coating: Uniform zinc layer (average 85 µm per side, meeting ASTM A123) provides outstanding corrosion protection, extending service life in harsh environments.
- 12-Meter Length: Reduces the number of joints and welding work, saving installation time and cost. Custom lengths available upon request.
- Versatile Applications: Ideal for columns, beams, platforms, bridges, and industrial equipment in building, port, and mining sectors.
Technical Specifications
| Parameter | Value |
| Steel Grade | Q345B (equivalent to S355JR) |
| Height (H) | 250 mm |
| Width (B) | 250 mm |
| Web Thickness (tw) | 9 mm |
| Flange Thickness (tf) | 14 mm |
| Length | 12 m (customizable: 6-18 m) |
| Surface Treatment | Hot Dip Galvanized (HDG) |
| Coating Thickness | ≥85 μm (average), per ASTM A123 |
| Tolerance | EN 10034 Class B |
Customer Benefits
- Longer Service Life: Hot dip galvanizing prevents rust and corrosion, reducing maintenance costs over the structure’s lifespan.
- Cost Savings: 12-meter standard length minimizes waste and welding, lowering labor and material expenses.
- Reliable Supply: With annual export capacity exceeding US$50 million, we ensure stable inventory and timely delivery for large-scale projects.
- Custom Options: We offer cutting, drilling, and galvanizing thickness adjustments to meet specific engineering requirements.
Company Strength & Trust
Hemaokang Steel is located in Liaocheng, Shandong – a major steel production hub in China. Our factory operates under ISO9001 certification, ensuring every batch of H-beam undergoes rigorous chemical analysis, mechanical testing, and dimensional inspection. We have served clients across North America, South America, Europe, Southeast Asia, Africa, and Oceania, earning a reputation for quality and punctuality. Our professional sales team provides technical support, free samples, and competitive pricing. Contact us today to request a quotation or discuss your project needs – we are ready to deliver steel solutions that build your success.
Frequently Asked Questions
Q1: What is the minimum order quantity (MOQ) for this H-beam?
A: The MOQ is typically 25 metric tons per size. However, for trial orders or smaller quantities, please contact our sales team – we can often accommodate special requests.
Q2: How long does the hot dip galvanized coating last?
A: In normal atmospheric conditions, the zinc coating can provide protection for 20-30 years before first maintenance. Actual lifespan depends on the environment (e.g., industrial, coastal).
Q3: Can you provide a mill test certificate (MTC) for the steel?
A: Yes, we issue a MTC (EN 10204 3.1) for every shipment, including chemical composition and mechanical properties for Q345B.
Q4: Do you offer custom lengths other than 12 meters?
A: Yes, we can supply lengths from 6 to 18 meters as per your requirements. Please specify when ordering.
Q5: What packaging do you use for export?
A: Beams are bundled with steel strapping, protected by water-proof paper or plastic sheets, and loaded in containers or on flat racks for sea freight. We also offer sea-worthy wooden packaging if needed.
Q6: Is the H-beam suitable for seismic zones?
A: Q345B steel has good ductility and toughness, making it suitable for earthquake-resistant structures when designed according to local building codes. We recommend consulting a structural engineer.
Q7: How do you ensure the galvanized coating is uniform?
A: Our hot dip galvanizing process follows strict parameters (bath temperature, immersion time, withdrawal speed). Each batch is tested for coating thickness and adhesion per ASTM A123 standards.
Q8: Can I get a sample before placing a bulk order?
A: Certainly. We provide free small samples (e.g., a 30cm cut piece) with freight collect. Contact us to arrange.
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