Hot/Cold Rolled Profile Steel H-Type Iron Q235/Q345/S235jr/A36/S355jr Low Carbon Steel H-Beam

Our Hot/Cold Rolled Low Carbon Steel H-Beams, also referred to as H-Type Iron profile steel, are premium structural profile products crafted from high-grade low carbon steel, covering a versatile range of internationally recognized grades including Q235, Q345, S235JR, A36, and S355JR. Manufactured with advanced hot rolling and cold rolling processes, these H-beams adhere to stringent global quality standards, featuring exceptional mechanical properties, precise dimensional molding, and superior processability. As foundational structural profiles, they combine the inherent advantages of low carbon steel with optimized H-shaped cross-sectional design, serving as a reliable and adaptable solution for diverse construction, engineering, fabrication, and industrial applications worldwide.

Material Grades & Low Carbon Steel Performance Advantages

This series of H-Type Iron beams is fabricated from carefully selected low carbon steel grades, each engineered to deliver targeted mechanical performance, with uniform low carbon content ensuring outstanding weldability, ductility, and toughness, catering to varied load-bearing and application requirements across different regional standards:

Q235 (GB/T 700): A widely used Chinese standard low carbon structural steel, Q235 offers a minimum yield strength of 235MPa, featuring excellent plasticity, formability, and cost efficiency. It is ideal for general light-load structural components, presenting stable performance and easy processing for routine construction and fabrication projects.

Q345 (GB/T 1591): A low alloy high strength low carbon steel under Chinese standards, Q345 boasts a minimum yield strength of 345MPa, delivering enhanced load-bearing capacity and impact resistance compared to Q235. It balances low carbon ductility with high strength, suitable for medium to heavy-duty structural applications requiring superior durability.

S235JR (EN 10025-2): European standard low carbon structural steel with a minimum yield strength of 235MPa, S235JR features exceptional room-temperature toughness and minimal processing deformation. Its consistent quality and compliance with EU norms make it a preferred choice for general structural profiles across European and global markets.

A36 (ASTM A36): Classic American standard low carbon steel, A36 has a minimum yield strength of 250MPa, renowned for its universal applicability, reliable weldability, and compatibility with both welded and bolted connections. It is a staple grade for structural steel profiles in North American and international engineering projects.

S355JR (EN 10025-2): High strength low carbon structural steel per European standards, with a minimum yield strength of 355MPa, S355JR offers robust structural rigidity, fatigue resistance, and reliable toughness. It is designed for heavy-load, high-safety structural applications, meeting the stringent demands of complex engineering projects.

Hot Rolling & Cold Rolling Process Characteristics

Our H-Type Iron profile steel adopts two professional rolling processes, each catering to distinct performance and application needs, ensuring diversified product selectivity and applicability:

Hot Rolled H-Beams: Produced through high-temperature hot rolling technology, hot rolled H-beams feature a refined internal grain structure, dense metallographic composition, and enhanced toughness and ductility. This process eliminates internal material defects, improves overall structural stability, and results in products with high load-bearing capacity and resistance to deformation. Hot rolled H-beams are characterized by larger sectional sizes, higher production efficiency, and cost-effectiveness, making them suitable for large-scale structural components in buildings, bridges, and industrial workshops.

Cold Rolled H-Beams: Fabricated via cold rolling at room temperature, cold rolled H-beams boast ultra-precise dimensional tolerances, smooth surface finish, and uniform cross-sectional dimensions. This process enhances the steel's surface hardness and dimensional accuracy, enabling tight fitting and high-precision fabrication. Cold rolled H-beams are ideal for applications requiring strict dimensional control, fine surface quality, and precise machining, such as precision machinery bases, decorative structural frames, and customized profile components.

H-Type Profile Structural Features & Application Scope

The optimized H-shaped cross-sectional design is the core advantage of these low carbon steel H-beams, with parallel flanges and a sturdy central web ensuring uniform stress distribution, exceptional bending resistance, and high section modulus. Compared to conventional steel profiles, H-Type Iron beams maximize structural efficiency with reduced material consumption, offering superior shear resistance and overall stability, facilitating easy installation and modular assembly.

Backed by premium low carbon steel materials and advanced rolling processes, these H-beams exhibit excellent comprehensive processability, supporting cutting, drilling, welding, bending, and surface treatment operations with ease. They are extensively applied in residential and commercial building structures, industrial workshops, bridges, infrastructure projects, machinery manufacturing, steel structure fabrication, automotive components, and various general engineering fields. With multi-grade selectivity, dual rolling process options, and reliable low carbon steel performance, our hot/cold rolled H-beams provide a standardized, economical, and high-quality profile steel solution for global industrial and construction demands.