Recently, with the rapid development of industries such as new energy equipment and high-end machinery manufacturing, the market demand for special steels has been continuously rising. As a core steel service provider in North China, Baotou Steel Union (Tianjin) Iron and Steel Co., Ltd., relying on the technical advantages of Baotou Iron and Steel Group, has established a product matrix covering the entire range of round steel products, including carbon steel, alloy steel, and stainless steel. At the same time, it supplies diversified steel products such as seamless steel pipes, high-strength steel plates, and I-beams, providing "one-stop" material solutions for industrial clusters in regions like the Beijing-Tianjin-Hebei area and the Yangtze River Delta.
Carbon Steel Round Steel: The Cornerstone in General-purpose Fields, Supporting Building Structural Steel
Carbon steel round steels such as Q235B and 45# occupy the basic markets of mechanical shafts, construction bolts, etc. due to their high ductility and economic efficiency. Aiming at the demands of the construction industry, Baotou Steel Union (Tianjin) Iron and Steel Co., Ltd. provides supporting structural profiles such as Q355B I-beams and angle steels. Its hot-rolled I-beams adopt the TMCP process, and the grain size reaches ASTM Grade 8, which supports the realization of a large-span column-free design for a high-speed railway station project in Tianjin and reduces the steel consumption by 20%.
Alloy Steel Round Steel: The Engine of High-end Manufacturing, Collaborating with the Application of Seamless Steel Pipes
Alloy round steels such as 20CrMnTi gear steel and GCr15 bearing steel have outstanding performances in the fields of automobile gearboxes and wind power main shafts. The company simultaneously provides seamless steel pipes for petroleum cracking (made of 15CrMoG material). By adopting the controlled rolling and controlled cooling technology, the yield strength of these pipes reaches 460MPa, and they have been mass-produced and used in the high-pressure water injection pipelines of the Bohai Oilfield. The technical director stated, "The combined solution of alloy steel and seamless steel pipes can increase the service life of the equipment by more than 30%."
Stainless Steel Round Steel: The New Favorite in the Green Industry, Linking with the Deep Processing of Steel Plates
The demand for 316L and 2205 duplex stainless steel round steels has surged in the fields of seawater desalination and hydrogen energy storage tanks. Baotou Steel Union (Tianjin) Iron and Steel Co., Ltd. has innovatively launched a bundled service of "stainless steel round steel + corrosion-resistant steel plate". The combination of 304 stainless steel plates with a 2B/BA surface treatment (with a thickness of 0.5-6mm) and mirror-finished round steel (Ra≤0.4μm) has helped a manufacturer of seawater electrolysis hydrogen production equipment pass the ISO 12944 C5-M anti-corrosion certification, and the salt spray resistance life of the equipment has exceeded 15 years.
Diversified Product Matrix: Full-scenario Coverage from Channel Steel to Steel Plates
In addition to round steel, the company focuses on the layout of differentiated products:
The cold-formed channel steel (C120×50×3mm) adopts the JIS G3350 standard and is equipped with a rapid installation system for photovoltaic brackets;
The low-alloy high-strength steel plate (Q690D) has passed the Z-direction performance Z35 certification and is used in the manufacturing of offshore wind power tower barrels;
The hot-expanded seamless steel pipe (φ426×12mm) breaks through the traditional diameter limitations and supports the construction of long-distance natural gas pipelines.
Future Layout: Dual-driven by Digitalization and Green Manufacturing
Laser coding is applied for traceability of products such as round steel and I-beams. Meanwhile, the zero-carbon electric arc furnace production line will be put into operation in 2025. By then, the carbon emissions of 316L stainless steel round steel will be reduced to 1.8tCO2/t. In an interview, the general manager emphasized, "Taking round steel as the core, we will extend our business to the fields of special steel pipes and profiled materials, and strive to build a benchmark high-end steel supply chain in northern China."
