Manufactured from high-grade carbon or alloy steel, our square bar delivers superior strength, precision, and durability. Sizes range from 10mm to 300mm with tolerances down to ±0.02mm. Compliant with ASTM, AISI, EN, DIN, JIS, GB, BS, AS, and ISO standards. Finishes include black, bright drawn, peeled, and polished. Serving automotive, aerospace, shipbuilding, construction, energy, petrochemical, railway, and heavy machinery sectors. Key strengths: outstanding machinability, high load-bearing capacity, excellent weldability, uniform cross-section, and cost efficiency. Built for the toughest industrial demands worldwide.

ASTM A36 Steel Square Bar is a high-quality carbon structural steel known for its excellent strength, durability, and weldability, making it ideal for construction, manufacturing, and engineering projects. With precise dimensions and uniform surface finish, it ensures reliable performance in structural frameworks, machinery components, and fabrication applications. Its versatile properties allow easy cutting, drilling, and machining, reducing production time and costs. Backed by consistent quality standards, this square bar meets global industrial requirements. Perfect for engineers, fabricators, and builders seeking dependable materials, ASTM A36 Steel Square Bar guarantees efficiency, durability, and superior structural integrity in every application.

ASTM A572 Grade 50 Steel Square Bar is a high-strength, low-alloy structural steel designed for superior performance in demanding construction and industrial applications. With excellent yield strength, toughness, and corrosion resistance, it is ideal for structural frameworks, heavy machinery, bridges, and fabrication projects. The precise dimensions and smooth surface ensure easy cutting, welding, and machining, saving time and labor costs. Trusted for its consistent quality and compliance with international standards, ASTM A572 Grade 50 Square Bar delivers reliability, durability, and long-term performance. Perfect for engineers and fabricators seeking high-strength steel to enhance structural safety and efficiency.

ASTM A992 Steel Square Bar is a high-strength structural carbon steel widely used in building construction, infrastructure, and heavy engineering projects. It offers excellent yield strength, good ductility, and superior weldability, ensuring safe and stable performance under demanding load conditions. With precise dimensions and a smooth surface finish, it is easy to cut, machine, and fabricate, helping improve production efficiency and reduce processing costs. Complying with strict ASTM standards, A992 steel provides consistent quality and long-term durability. Ideal for structural frameworks, support components, and industrial fabrication, ASTM A992 Steel Square Bar delivers reliable strength and dependable performance for modern engineering needs.

ASTM AISI 1018 Steel Square Bar is a low-carbon mild steel known for its excellent machinability, weldability, and balanced strength and ductility. It is widely used in mechanical components, shafts, fasteners, and general engineering applications where precision and surface finish are important. The material offers good formability, allowing easy cutting, drilling, bending, and welding with minimal risk of cracking. Its consistent chemical composition ensures reliable performance and smooth processing in both manufacturing and fabrication. ASTM AISI 1018 Steel Square Bar is an ideal choice for cost-effective production, providing stable quality and versatility for a wide range of industrial and structural uses.

ASTM AISI 1045 Steel Square Bar is a medium-carbon steel known for its high strength, hardness, and excellent wear resistance, making it ideal for heavy-duty industrial and mechanical applications. It offers superior machinability and can be heat treated for enhanced toughness, ensuring durability in shafts, gears, bolts, and machinery components. With precise dimensions and a smooth surface finish, it is easy to cut, weld, and fabricate, reducing production time and costs. Compliant with ASTM standards, AISI 1045 Steel Square Bar provides consistent quality, reliable performance, and long service life, making it the preferred choice for engineers and fabricators seeking robust, high-strength steel.

EN S235JR Steel Square Bar is a versatile low-carbon structural steel widely used in construction, fabrication, and engineering projects. Known for its excellent weldability, ductility, and reliable mechanical strength, it performs well under static and dynamic loads. Its precise dimensions and smooth surface make cutting, machining, and assembly efficient, saving time and labor costs. Compliant with EN 10025 standards, S235JR steel guarantees consistent quality and long-term durability. Ideal for structural frameworks, machinery parts, and industrial components, EN S235JR Steel Square Bar offers a cost-effective, dependable solution for engineers and fabricators seeking reliable performance and robust material for everyday applications.

EN S275JR Steel Square Bar is a high-quality low-carbon structural steel offering excellent strength, weldability, and durability for demanding construction and industrial applications. It provides reliable mechanical properties, including good tensile strength and ductility, making it ideal for structural frameworks, machinery components, and fabrication projects. With precise dimensions and a smooth surface finish, it ensures easy cutting, drilling, and welding, improving production efficiency and reducing processing costs. Compliant with EN 10025 standards, S275JR steel guarantees consistent quality and long-term performance. EN S275JR Steel Square Bar is the perfect choice for engineers and fabricators seeking a dependable, versatile, and cost-effective structural steel solution.

EN S355JR Steel Square Bar is a high-strength, low-alloy structural steel designed for demanding construction and industrial applications. With superior tensile strength, excellent weldability, and good ductility, it performs reliably under heavy loads and dynamic stresses. Its precise dimensions and smooth surface enable easy cutting, machining, and fabrication, saving time and reducing production costs. Fully compliant with EN 10025 standards, S355JR steel ensures consistent quality, durability, and long-term performance. Ideal for structural frameworks, bridges, machinery parts, and fabrication projects, EN S355JR Steel Square Bar provides engineers and fabricators with a dependable, versatile, and high-performance material solution.

JIS SS400 Steel Square Bar is a widely used general-purpose structural carbon steel known for its excellent weldability, machinability, and balanced mechanical strength. It is suitable for construction, fabrication, machinery parts, and various industrial applications. With stable chemical composition and reliable performance, SS400 ensures consistent quality and safe structural use. Its precise dimensions and smooth surface allow easy cutting, drilling, and welding, improving processing efficiency and reducing manufacturing costs. Complying with JIS G3101 standards, SS400 Steel Square Bar delivers dependable strength, good formability, and long service life, making it a cost-effective and versatile choice for engineers, builders, and fabricators worldwide.

GB Q235B Steel Square Bar is a widely used mild carbon structural steel with excellent weldability, good plasticity, and reliable mechanical strength. It is ideal for construction, fabrication, machinery parts, and general engineering applications where cost-effective performance is required. With stable chemical composition and consistent quality under GB/T standards, Q235B ensures safe and durable structural use. Its precise dimensions and smooth surface make cutting, drilling, and welding easy, improving production efficiency and reducing processing costs. GB Q235B Steel Square Bar offers dependable strength, versatility, and long service life, making it a trusted choice for engineers, builders, and industrial manufacturers worldwide.

GB Q345B Steel Square Bar is a high-strength low-alloy structural steel designed for demanding construction, engineering, and industrial applications. With excellent tensile strength, good weldability, and superior toughness, it reliably supports heavy loads and dynamic stresses. Its precise dimensions and smooth surface allow easy cutting, machining, and welding, improving production efficiency and reducing labor costs. Fully compliant with GB/T 1591 standards, Q345B steel ensures consistent quality and long-term durability. Ideal for structural frameworks, machinery components, bridges, and fabrication projects, GB Q345B Steel Square Bar provides engineers and fabricators with a versatile, high-performance, and cost-effective material solution.