1. The flanges handle tensile and compressive forces, while the web ensures stability and resists shear; the overall structure offers excellent flexural performance and uniform, stable load transmission.
2. Capable of supporting static loads (roofs, floors) and complex dynamic loads (overhead cranes, wind, snow, vibration) over the long term, these beams resist bending, deformation, and structural instability.
3. With ample structural safety margins, they are designed for heavy-duty, large-span applications, ensuring the long-term safe and stable operation of the building while meeting high-standard load-bearing requirements.
HAISHENG selects materials based on specific project scenarios, avoiding both material over-specification and insufficient load-bearing capacity.
1. Q235B Steel
Suitable for standard inland factories, ordinary buildings without heavy overhead cranes, and moderate load requirements. It offers excellent toughness and weldability, balancing quality with cost-effectiveness—making it the preferred choice for standard projects.
2. Q355B Low-Alloy High-Strength Steel
Suitable for heavy-duty workshops with overhead cranes, ultra-large-span venues, and projects in highly corrosive coastal areas. It offers superior load-bearing capacity, lateral stability, and structural resilience.
| Comparison Item | Q235B Carbon Structural Steel | Q355B Low-Alloy High-Strength Steel |
|---|---|---|
| Mechanical Strength | Yield strength ≥235MPa; Tensile strength: 370–500MPa. Excellent toughness and ductility, stable deformation performance. | Yield strength ≥355MPa; Tensile strength: 470–630MPa. Higher bearing capacity, outstanding shear and fatigue resistance. |
| Core Performance | Uniform stress distribution, good weldability, flexible adaptability for general static load structures. | Strong lateral stiffness, excellent anti-vibration and anti-deformation ability, suitable for dynamic heavy-load working conditions. |
| Applicable Scenarios | Conventional inland factories, small & medium-span buildings, structures without heavy overhead cranes, standard static load projects. | Large-span venues, heavy-duty workshops with cranes, high-rise steel buildings, coastal salt fog and corrosive environments, high-seismic-grade projects. |
| Construction Features | Low welding difficulty, no special construction process required, high on-site construction adaptability. | Higher structural strength; allows smaller beam section size under the same load, saving overall steel consumption. |
| Cost Performance | Lower unit price, superior cost performance for ordinary light-load projects. | Higher single material price, but reduces total steel usage and foundation cost, more economical for large-span and heavy-load projects. |
HAISHENG utilizes a factory-based prefabrication process to enhance construction efficiency and minimize on-site risks.
1. End-plate welding, stiffener assembly, and precision bolt-hole cutting are completed before leaving the factory. All processes are standardized, eliminating the need for on-site cutting, welding, or modifications.
2. On-site assembly requires only bolting; this efficient "dry construction" method significantly shortens the construction schedule, enabling earlier project completion and commissioning.
3. It effectively reduces on-site hot work, labor requirements, and safety hazards, making it ideal for projects requiring tight schedules, high standards, and strict regulatory compliance.
1. Standard anti-rust coating processes are applied to conventional factory buildings, ensuring stable, long-term performance in dry indoor environments.
2. For coastal areas with salt-spray exposure or highly corrosive conditions, hot-dip galvanizing and heavy-duty anti-corrosion treatments are used to significantly enhance resistance to aging and corrosion, thereby extending the components' service life.
3. Flame-retardant fireproof coatings are applied as needed to meet precise fire safety acceptance standards; combined with structural technologies for seismic and torsional resistance, this ensures comprehensive structural durability and stability while reducing long-term O&M costs.
All H-section steel structural beams are produced using standardized processes with strict quality control at every stage, ensuring hassle-free project acceptance.
1. Manufactured using certified national standard Q235B and Q355B raw materials, the beams are shaped through precision CNC cutting, fully automatic submerged-arc welding, and mechanical straightening.
2. Finished products undergo a comprehensive inspection process—including non-destructive testing (NDT), shot-blasting for rust removal, and anti-corrosion coating checks—ensuring dense welds, minimal dimensional tolerances, and compliance with straightness standards.
3. Quality fully meets domestic and international acceptance standards; parameters are traceable and quality is controllable, eliminating the need for customers to conduct time-consuming re-inspections or remedial work.
HAISHENG products serve the domestic market and are exported in bulk to Southeast Asia, Europe, South America, and other regions, backed by mature cross-border engineering service capabilities.
1. Supported by professional design, construction, and installation teams, we provide end-to-end services including detailed drawing refinement, cost estimation, and technical briefings.
2. We offer full-process logistics tracking, real-time progress updates, rapid after-sales response, and lifelong technical support with regular follow-ups.
3. Beyond supplying high-quality H-section steel beams, we resolve various challenges related to overseas project construction, coordination, and O&M, ensuring the smooth and successful execution of projects.
We develop tailored logistics and transportation plans specifically designed for the heavy-load characteristics of H-section steel structural beams.
1. Specialized flatbed trailers are matched to the load, and custom transport routes are planned for extra-long components to circumvent dimensional restrictions.
2. Standardized loading and securing procedures, combined with comprehensive component protection, prevent damage such as dents, scratches, or deformation during transit.
3. Shipments are scheduled for timely dispatch with real-time logistics updates for full customer visibility; on-site verification is supported upon arrival, and rapid replacement processes are in place for any transit damage, ensuring construction schedules remain uninterrupted.
A: H-section steel structural beams feature a standardized, integrally formed structure with uniform cross-sections, stable weld quality, and tight dimensional tolerances. They distribute loads evenly without stress concentration, offering superior resistance to deformation and fatigue compared to welded beams. Additionally, their high prefabrication rate and rapid on-site installation make them ideal for high-standard, long-term steel structure projects.
A: For small-to-medium span factories located in dry inland areas—without heavy overhead cranes or high-frequency vibrations—Q235B steel is sufficient and offers better cost-effectiveness. However, if future equipment installation or load upgrades are anticipated, selecting Q355B provides ample safety margins, avoiding the need for costly structural retrofitting later.
A: In coastal environments characterized by salt spray and high humidity, a heavy-duty anti-corrosion combination of hot-dip galvanizing and topcoat painting is recommended for long-lasting rust and corrosion resistance. For near-shore areas with mild corrosive conditions, thickened anti-corrosion coatings may be used; protection plans can be flexibly tailored based on project budgets and service life requirements.
A: Standard operations such as hole cutting, trimming, and welding adjustments are supported; all prefabricated components include appropriate construction tolerances to accommodate on-site installation variances. However, extensive on-site modification of critical load-bearing components is not recommended, as it may compromise the mechanical properties of the base material and affect structural safety.
A: Standard anti-rust coatings offer a service life of 8–10 years for indoor use, while hot-dip galvanizing provides over 15 years of corrosion resistance for outdoor applications. When paired with compliant fire-resistant coatings, the beams meet building fire-resistance rating requirements and comply with project acceptance standards, significantly reducing long-term maintenance and refurbishment costs.
Address
Tianjin International Metal Logistics Park, Jinan Economic Development Zone (East Zone), Jinan District, Tianjin, China
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