Steel Round Bar

Medium carbon steel round bar with 4-350mm diameter range, available in hot rolled and cold drawn finishes. Features 585MPa tensile strength, 450MPa yield strength, and excellent dimensional accuracy for structural and industrial applications. Compliant with ASTM, GB, EN, DIN standards with 5-7 day delivery for stock materials.

High-strength AISI 4140 alloy steel round bars with 42CrMo composition. Available in diameters 20-350mm and standard 6m lengths. Features 655 MPa tensile strength, 415 MPa yield strength, and excellent hardenability. Ideal for automotive, construction, and industrial applications requiring durable, heat-treatable steel components.

Premium 52100 high-carbon chromium alloy steel bars with exceptional hardness and wear resistance. Available in diameters 10-350mm, hot rolled for superior strength. Ideal for bearings, punches, mill rolls, and automotive components. Features 1.00% carbon and 1.50% chromium composition. Standard 6m length with custom cutting options available.

High-strength chromium molybdenum steel round bars with enhanced hardenability for demanding applications. Available in diameters 10-350mm, offering 89 KSI yield strength and 125-140 KSI tensile strength. Ideal for oil and gas drilling tools, heavy machinery, and aerospace components with excellent wear resistance and machinability.

High-strength SAE4340 alloy steel round bars available in diameters from 10mm to 300mm with standard 6m lengths. Hot rolled construction provides excellent mechanical properties including tensile strength up to 1282 MPa and yield strength up to 1145 MPa. Ideal for structural applications, machinery components, and industrial equipment requiring superior durability and fatigue resistance.

AISI 1020 carbon steel round bar offers excellent weldability and machinability with Brinell hardness of 119-235 and tensile strength of 410-790 MPa. Available in diameters from 10-300mm, this low carbon steel is ideal for automotive, machinery, and industrial applications requiring high toughness and dimensional precision.

EN 10204-3.1 certified 17CrNiMo6 alloy steel round bars with diameters from 13-300mm and lengths up to 10 meters. This heat-treatable material offers exceptional toughness, high strength (980-1270 MPa tensile), and excellent fatigue resistance for heavy-duty applications including shafts, gears, and couplings.

Premium 17CrNiMo6 hot rolled alloy steel round bars with diameters from 10-350mm and standard 6m lengths. Features 1200MPa tensile strength, excellent case hardening properties, and multiple international certifications including EN 10084:2008. Ideal for heavy-duty industrial applications requiring superior strength and durability.

High-strength AISI 1045 carbon steel round bars available in diameters 8-400mm. Features excellent mechanical properties with 600 N/mm² tensile strength, ideal for industrial machinery components, shafts, and moving parts. Available in hot-rolled, forged, and cold-drawn variants with comprehensive technical support and custom sizing options.

High-strength SAE4340 alloy steel round bars with 10-350mm diameter range and 3000-6000mm lengths. Features chromium molybdenum composition, excellent toughness, and superior shock resistance for heavy machinery shafts, rotor components, and critical parts requiring nitriding treatment. Available in custom specifications with 15-50 day delivery.

High-strength cold drawn and hot rolled carbon steel round bars with tensile strength of 600 N/mm² minimum. Available in diameters from 150mm to 350mm, these AISI 1045 steel bars offer excellent machinability and durability for industrial applications including machinery components, transmission systems, and wear-resistant parts.

AISI 4140 chromium-molybdenum alloy steel round bar offering high tensile strength (1020 MPa), excellent fatigue resistance, and impact toughness. Available in custom sizes with hot rolled, forged, or cold drawn techniques. Meets ASTM, SAE, EN, and JIS standards for aerospace, automotive, and oil & gas applications.

Premium mechanical round steel bars in diameters 10-350mm, manufactured from high-quality bearing steel grades including GCr15, SAE52100, 100Cr6, and SUJ2. Features high hardness (58-62 HRC), excellent wear resistance, and uniform microstructure. Ideal for bearing components, machine tools, and precision industrial applications with ISO 9001 certified quality assurance.

High-strength chromium molybdenum alloy steel round bars manufactured to ASTM A29/A29m standards. Features excellent toughness, hardenability, and shock resistance with diameters from 10mm to 350mm. Ideal for heavy machinery shafts, rotor components, and critical industrial applications requiring superior mechanical properties.

SAE 8620 alloy steel round bars offer excellent carburizing properties with diameters from 10mm to 350mm. Featuring high hardenability, good weldability, and superior machinability, these hot rolled steel rods provide ≥980MPa tensile strength and ≥785MPa yield strength. Ideal for gears, shafts, and transmission components in aerospace, automotive, and construction industries.