Hot rolled H steel, as a high-performance structural profile with optimized cross-sectional geometry, stands as a core material in modern construction, machinery manufacturing, infrastructure engineering and heavy industrial fields. We supply a full range of hot rolled H steel products covering multiple mainstream grades including Q235, Q355, 460C, S235JR, S355JR, S355J0, C255 and C355, complying with both Chinese national standards and European standard specifications, to satisfy diversified engineering load-bearing, mechanical performance and construction application requirements.
Product Basic Characteristics & Structural Advantages
Hot rolled H steel features a standard H-shaped cross-section with parallel flanges and a connected web, boasting superior mechanical properties and structural efficiency compared with traditional steel profiles. Its reasonable stress distribution endows the product with outstanding bending resistance, shear resistance and compressive capacity, while realizing the balance between structural strength and self-weight. This design not only reduces material consumption and engineering costs, but also facilitates on-site cutting, welding, assembling and construction, making it widely adaptable to various complex engineering scenarios. Adopting advanced hot rolling technology, the product features uniform texture, stable dimensional accuracy, smooth surface and no obvious defects, ensuring long-term structural stability and service reliability.
Grade Classification & Core Performance Attributes
Our hot rolled H steel grades cover conventional carbon structural steel, low-alloy high-strength structural steel and high-strength weather-resistant structural steel, each with definite yield strength, tensile strength, toughness and weldability, suitable for different load grades and environmental conditions.
Q235 & S235JR are general-purpose carbon structural steels, representing the conventional strength grades in Chinese and European standards respectively. With moderate yield strength (≥235MPa), favorable plasticity and weldability, they feature low production cost and high universality, mainly applied to light industrial frameworks, residential building structures, secondary load-bearing beams and auxiliary supports, fitting for conventional low-load engineering projects.
Q355, S355JR & S355J0 belong to low-alloy high-strength structural steels, with a minimum yield strength of 355MPa, featuring higher strength, better toughness and fatigue resistance than conventional carbon steels. Q355 is a domestic high-strength grade applicable to medium and high-load structural parts; S355JR meets European standard requirements, with good room-temperature impact toughness, suitable for general industrial and civil engineering; S355J0 enhances low-temperature impact toughness, adapting to low-temperature environment applications, such as outdoor steel structures, bridge components and cold-region infrastructure, effectively avoiding brittle failure under low temperature conditions.
C255 & C355 are European standard structural steel grades, with yield strengths of ≥255MPa and ≥355MPa respectively, featuring stable chemical composition and reliable mechanical properties. C255 is suitable for medium-load structural frameworks and mechanical equipment supports, while C355 is targeted at heavy-duty industrial structures, port machinery, steel pile foundations and other high-load bearing scenarios, with excellent comprehensive performance to meet strict engineering design standards.
460C is a high-strength structural steel grade with a minimum yield strength of 460MPa, featuring ultra-high bearing capacity and structural rigidity, accompanied by qualified impact toughness. It is specially designed for super high-rise building core columns, large-span crane beams, critical load-bearing components of heavy machinery and other high-end engineering fields, effectively reducing the cross-sectional size of structural parts under the same load condition, realizing lightweight design of the structure.
Manufacturing Process & Quality Control
All our hot rolled H steel products are produced through standardized hot rolling process: raw steel billets are heated to a high temperature of 1100-1250℃, then rolled into specified cross-sectional sizes via multi-stand precision rolling mills, followed by controlled cooling and finishing treatment to refine the internal grain structure, optimize mechanical properties and improve weldability and ductility. Strict quality control is implemented throughout the production chain, including raw material chemical composition testing, on-line dimensional inspection, mechanical property testing and surface defect detection, ensuring each batch of products fully complies with corresponding standard indicators. Complete factory inspection certificates are provided to guarantee product qualification and traceability, meeting the quality requirements of domestic and international engineering projects.
Main Application Fields
With diversified grade selection and reliable performance, our hot rolled H steel is widely used in various key industries: high-rise civil buildings, industrial workshops, bridge engineering, port terminals, machinery manufacturing, automobile manufacturing, offshore engineering, steel structure warehouses and infrastructure construction. Whether it is conventional building structures or special high-load, low-temperature engineering scenarios, the product can provide stable structural support, becoming the preferred profile for modern steel structure engineering.
