Good Quality Ss400 S235jr S355jr S355j2 A36 Steel H Beam for Prefabricated Building

The high-quality H-beam presented herein is specifically engineered for prefabricated building projects, featuring a range of premium structural steel grades-SS400, S235JR, S355JR, S355J2, and A36-that are globally recognized for their reliability, mechanical performance, and adaptability to modular construction scenarios. As a core load-bearing component in modern prefabricated structures, this H-beam is distinguished by its optimized H-shaped cross-sectional design, which comprises parallel top and bottom flanges and a central web, working synergistically to deliver exceptional bending resistance, torsional stability, and load-bearing capacity while maintaining a lightweight profile and high section utilization efficiency远超 traditional I-beams.

Each steel grade integrated into this H-beam line is carefully selected to meet diverse structural requirements, adhering to international standards and ensuring consistent quality across applications. SS400, a Japanese Industrial Standard (JIS) structural steel, boasts a minimum tensile strength of 400 MPa and a yield strength ranging from 205 to 245 MPa, making it ideal for light to medium-load residential and light industrial prefabricated buildings in Asian markets. S235JR, a European Standard (EN) non-alloy structural steel, offers a nominal minimum yield strength of 235 MPa (for thicknesses up to 16 mm) and excellent weldability, suitable for low-load prefabricated structures such as retail facilities and small modular buildings in European regions. S355JR, another EN-grade steel, stands out with a higher yield strength of 355 MPa-51% higher than S235JR-and superior low-temperature toughness (tested at 0 °C), making it the preferred choice for heavy-duty prefabricated projects with large spans, heavy loads, or harsh cold-climate conditions, such as warehouses and industrial workshops.

S355J2, an upgraded variant of S355JR, maintains the same high yield strength while offering enhanced low-temperature impact resistance (tested at -20 °C), ensuring structural integrity in extreme cold environments, which is crucial for prefabricated buildings constructed in temperate and frigid zones. A36, an American Society for Testing and Materials (ASTM) grade, features a yield strength of 250 MPa and excellent ductility, widely used in North American prefabricated commercial and residential projects, including office columns and modular housing frames, due to its balanced performance and cost-effectiveness.

All grades of this H-beam are classified as mild carbon steels, with carbon content ≤ 0.25%, which endows them with key characteristics essential for prefabricated construction: excellent weldability (eliminating the need for special preheating for thin sections), good ductility (facilitating bending, cutting, and on-site processing), and affordability, balancing performance and cost efficiency for large-scale modular projects. The H-shaped cross-section design ensures that the flanges bear bending moments and the web withstands shear forces, resulting in uniform stress distribution and a strength-to-weight ratio that is significantly more efficient than solid steel columns or traditional I-beams-reducing structural self-weight by 30% to 50% under the same load requirements and lowering overall material and construction costs.

Engineered specifically for prefabricated building applications, this H-beam is compatible with the "factory prefabrication + on-site assembly" modular construction model. Its flat, parallel flanges allow for convenient bolted and welded connections with other structural components (such as sandwich panels, node plates, and columns), reducing on-site construction time by 30% to 50% compared to conventional concrete structures and ensuring precise assembly with minimal adjustments. Additionally, the H-beam is available in both hot-rolled and welded variants: hot-rolled H-beams offer standardized specifications and stable performance for regular load-bearing scenarios, while welded H-beams can be customized to specific dimensions (flange width, web thickness, and length) to adapt to special design requirements of prefabricated buildings, such as large-span roofs or custom-shaped modular units.

With strict quality control throughout the production process-from raw material selection and hot-rolling/welding to dimensional inspection and mechanical performance testing-this H-beam meets the stringent requirements of prefabricated building projects for structural safety, durability, and consistency. Its recyclability (with a scrap value of up to 90%) also aligns with the principles of green and sustainable construction, making it an environmentally friendly choice for modern modular building development. Whether used as main beams, columns, or frame components, the SS400, S235JR, S355JR, S355J2, and A36 steel H-beam serves as a reliable structural backbone, enabling the efficient, cost-effective, and safe construction of prefabricated buildings across diverse regions and project scales.