2. Certifications: ISO 9001, CE, SGS. Third - party NDT reports for quality.
3. Custom services: Non - standard sizes supported, galvanizing/painting, accepts custom drawings.
4. Delivery: Regular 15 days, expedited 10 days (+10% fee).
5. Applications: Factory load - bearing beams, bridge supports. Bending strength ≥345MPa for large - span.
6. Cost: Saves 15% on steel vs. traditional I - beams. Tiered pricing for bulk orders.
Welded H-Section Solid Web Steel Column Product Description
The Welded H-Section Solid Web Steel Column from Shenyang Zhongda offers dependable enterprise-grade performance when your project requires outstanding load-bearing capacity and design flexibility. Our columns are manufactured using high-precision Submerged Arc Welding (SAW) on sophisticated automated production lines, utilizing premium Q235B/Q345B and Q355B grade steel with yield strengths up to 355 MPa. We guarantee structural integrity for your most demanding applications with dimensional tolerances held to ±0.1mm with our 3-axis CNC drilling systems and 100% ultrasonic testing on all crucial welds. With columns ranging from 80mm to 400mm web height, our 75,000 m² manufacturing facility can produce up to 80,000 tons a year, enabling projects from heavy industrial plants to high-rise towers.
Unlike standard hot-rolled sections, our Web Steel Column offers you unlimited customization possibilities. You get to specify flange width, web thickness, and overall depth to perfectly match your structural calculations—eliminating material waste while maximizing load efficiency.
Welded H-Section Solid Web Steel Columns



Product Advantages
Superior Structural Performance
You should use parts for your buildings that are resilient. Because our columns have bending strengths greater than 345 MPa, they are ideal for large-span applications where traditional I-beams are inadequate. Even under combined axial and lateral loads, the solid web design demonstrates extraordinary resistance to local buckling and retains its stiffness.
The Flexibility You Need in Engineering
Each project is different. For this reason, we provide whole cross-sectional dimension customization. Our technical staff works with your specifications to optimize the weight-to-load ratio for your unique needs, whether you need non-symmetrical profiles or are dealing with eccentric loading circumstances..
Proven Cost Efficiency
Compared to conventional I-beam solutions, you will save about 15% on steel. Large-scale projects are even more cost-effective thanks to our tiered pricing for bulk orders. Additionally, we assist you in keeping your construction timeline on track with delivery times of only 15 days (or 10 days for expedited orders).
Quality That Is Self-Explanatory
Every Welded H-Section Solid Web Steel Column undergoes rigorous inspection methods. To find any internal flaws, we conduct 100% non-destructive testing utilizing radiographic and ultrasonic techniques. Every order is guaranteed to be of constant quality thanks to our ISO 9001, ISO 14001, and ISO 45001 certifications.
Global Standards Compliance
Your international projects need components that meet worldwide specifications. Our columns comply with ASTM A992, AWS D1.1, GB/T 11263-2010, EN 1090-2, and JIS standards, ensuring seamless integration into projects across different regions.
Technical Specifications & Customization
|
Parameter |
Standard Range |
Custom Options |
|
Material Grade |
Q235B, Q345B, Q355B, S355JR |
ASTM A572 Gr. 50, A992 upon request |
|
Yield Strength |
235-355 MPa |
Up to 420 MPa for special applications |
|
Web Height |
80-400 mm |
Up to 2000 mm for mega-structures |
|
Flange Width |
100-350 mm |
Asymmetric profiles available |
|
Web Thickness |
6-40 mm |
Custom thickness for specific loads |
|
Flange Thickness |
8-60 mm |
Variable thickness optimization |
|
Welding Method |
Submerged Arc Welding (SAW) |
Full penetration, staggered seam ≥200mm |
|
Dimensional Tolerance |
±2 mm (depth/width) |
±0.1 mm precision machining available |
|
Length |
Up to 18 meters |
Custom cutting to site requirements |
|
Surface Treatment |
Shot blasting Sa2.5, primer coating |
Hot-dip galvanizing, C5-M marine coating |
|
NDT Coverage |
100% UT/RT on critical welds |
Third-party inspection reports included |
|
Certification |
ISO 9001, CE, SGS |
Mill Test Certificates (MTC) provided |

Manufacturing & Quality Control
World-Class Production Capability
Our 120,000 m² facility in Shenyang Economic and Technological Development Zone houses cutting-edge equipment that ensures precision at every step. With our 50-ton crane capability and CNC cutting machines that can handle ultra-thick plates up to 300mm, we can easily satisfy your most rigorous requests.
Advanced Fabrication Technology
· Automated Welding Lines: Symmetrical welding sequences minimize residual stress
· 1200-Ton Plate Rolling: Ensures uniform curvature when needed
· 3-Axis CNC Drilling: Achieves ±0.1mm hole positioning accuracy
· Laser Tracking Systems: Verifies straightness and eliminates twist during fabrication
Rigorous Quality Assurance
We don't just meet standards—we exceed them. Every column undergoes:
1.Material Traceability: Full MTC documentation linked to heat numbers
2.Dimensional Inspection: Laser verification of sweep, camber, and twist
3. Weld Quality Testing: 100% UT/RT inspection for internal flaws
4. Surface Quality Control: DFT testing guarantees that the coating thickness satisfies requirements
5. Final Documentation: Detailed English-language inspection reports for global projects
Options for Post-Weld Treatment
We offer Post-Weld Heat Treatment (PWHT) when your project calls for it in order to reduce residual stresses and guarantee that columns stay absolutely straight throughout installation and service life.
Project Cases
High-Rise Commercial Infrastructure
Our columns have supported vertical load-bearing systems in multi-story commercial complexes where space optimization is critical. The slim profile of our Welded H-Section Solid Web Steel Column maximizes usable floor area while handling combined axial and wind loads effectively.
Heavy Industrial Applications
We've delivered custom fabricated columns for smelting plants and facilities with overhead crane systems. These columns withstand massive dynamic loads and resist thermal expansion in high-temperature environments—environments where standard sections would fail.
Transportation Infrastructure
The 18,000-ton Shenyang Dongta Cross-Hunhe River Bridge project showcased our capability to deliver complex bridge pylons requiring exceptional ductility and energy dissipation properties for seismic resistance.
Major EPC Partners
We're proud to serve leading contractors including China State Construction Engineering Corporation, China Railway Group Limited, and China Metallurgical Group Corporation—partnerships built on 20 years of consistent quality and reliable delivery.
Project Cases



Compliance & Certifications
Management System Certifications
· ISO 9001:2015 Quality Management System
· ISO 14001:2015 Environmental Management System
· ISO 45001:2018 Occupational Health & Safety
Product Compliance Standards
· China: GB/T 11263-2010, GB/T 33814
· USA: ASTM A992, AWS D1.1
· Europe: EN 1090-2, S355JR
· Japan: JIS standards
Recognition & Qualifications
· National High-Tech Enterprise (certified 2004)
· Class I Steel Structure Professional Contracting Qualification
· China Steel Structure Association Member
· Liaoning Province Key Prefabricated Building Industrial Base
Third-Party Verification
All shipments include SGS or equivalent third-party inspection reports upon request, ensuring complete transparency and traceability for your procurement records.

FAQ
Q1: What makes your welded H-sections better than hot-rolled alternatives?
The primary advantage is customization freedom. Hot-rolled mills have size limitations—our welded sections can reach depths and flange thicknesses far beyond standard catalogs. You get exactly the section modulus your calculations require without over-specifying material.
Q2: How do you prevent welding defects in critical connections?
We use automatic Submerged Arc Welding with controlled heat input and travel speed. Every web-to-flange weld receives 100% Ultrasonic Testing. Our reject rate is below 0.5%, and any questionable welds are repaired and re-tested before shipment.
Q3: Can these columns work in corrosive coastal environments?
Absolutely. When protected with hot-dip galvanizing or high-performance C5-M grade marine coatings, our columns maintain structural integrity for 50+ years in harsh marine atmospheres. We provide detailed coating specifications based on your exposure category.
Q4: What about buckling during installation?
We provide detailed erection engineering, including lifting point calculations and temporary bracing specifications based on your column's slenderness ratio. Our technical team can support your installation contractor with on-site guidance if needed.
Q5: How quickly can you deliver custom columns?
Regular orders are shipped in 15 days. We provide expedited 10-day delivery at a 10% surcharge if your project has a tight deadline. We will collaborate with you to create a phased delivery schedule for orders weighing more than 500 tons.
Contact Us
Ready to discuss your structural steel requirements for Welded H-Section Solid Web Steel Column? Our engineering team is here to help you optimize your column specifications for performance and cost-efficiency.
Email: Ava@zd-steels.com
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