High-performance steel materials for demanding industrial applications and structural projects

As a reliable China structural steel Manufacturer and one-stop Supplier, HAISHENG supplies in-stock Structural Steel Plates for construction, steel structure and machinery manufacturing projects. Complying with GB/T 700 and GB/T 1591, these plates mainly adopt Q235B and Q355B grades, including hot rolled, cold rolled, medium thick and checkered types. With high strength, good toughness and superior weldability, Hot Rolled Structural Steel Plates are widely used for beams, slabs, equipment bases and various load-bearing panels, serving as essential universal steel materials for industrial and building engineering.

Haisheng specializes in supplying Square Hollow Structural Steel Tubes. Featuring a hollow square cross-section, these tubes offer balanced stiffness in all directions, high torsional resistance, and superior overall structural stability. Their neat, square profile facilitates easy installation and architectural styling. Widely used for structural columns, trusses, curtain wall framing, guardrails, equipment racks, municipal landscaping, and construction machinery, they are a standard choice for load-bearing and framework applications in engineering.

As a reliable Chinese manufacturer and one-stop supplier of steel structures, HAISHENG offers rectangular hollow structural steel tubes—cold-formed steel sections available in both seamless and welded varieties. Manufactured in accordance with standards such as GB/T 6728, they are primarily made from Q235B and Q355B steel. These tubes feature outstanding resistance to bending and lateral displacement, offer stable load-bearing performance and a uniform profile, and are highly adaptable for installation.

HAISHENG specializes in supplying high-quality seamless circular structural steel pipes. These pipes feature a dense microstructure, high overall strength, excellent pressure and high-temperature resistance, superior fatigue resistance, and outstanding sealing capabilities. They are widely used in applications such as high-pressure fluid transport, thermal pipelines, chemical equipment, mechanical cylinders, and high-pressure steel structural columns, serving as a core piping component for scenarios demanding high temperature and pressure resistance, corrosion resistance, and high safety standards.

As a professional manufacturer and supplier of steel pipes, HAISHENG offers high-quality welded steel pipes from stock. Characterized by high production efficiency, excellent cost-performance, and a comprehensive range of specifications, these pipes feature a hollow circular cross-section that ensures balanced load distribution and offers superior resistance to bending, torsion, and pressure. They are widely used in construction, municipal infrastructure, and electromechanical engineering.

HAISHENG is a professional manufacturer and supplier of Hot Rolled Carbon Steel Round Bars in China. These products feature uniform texture, good toughness and ductility, and are easy to weld, bend, and machine. They are primarily used for embedded parts in steel structures, raw material for anchor bolts, tie rods, pins, small supports, and mechanical components.