Steel Round Bar

45CrNiMoVA alloy steel round bar offers ultra-high strength and toughness, ideal for heavy machinery components. Conforms to GB/T 3077. Custom sizes available. Free samples for testing.

High-strength alloy round bar with tensile strength 1080MPa and hardness HB311-375. ISO9001 certified, suitable for mechanical and automotive parts. Custom sizes and surface finishes available. Competitive price, immediate delivery.

High-strength 16MnCr5 alloy steel round bar, 8mm diameter, compliant with EN ISO 683-3 and EN 10084. Ideal for gears, shafts, and mechanical components. Offers excellent wear resistance and core tensile strength. Custom sizes and surface finishes available.

AISI 4140 chrome-moly steel bar offers high tensile strength (≥1080 MPa) and excellent toughness. Equivalent to DIN 42CrMo4. Ideal for shafts, gears, and heavy machinery. Available in QT condition with MTC 3.1 certification and custom sizes.

High quality hot-rolled steel round bar available in 8mm to 16mm diameters. Hot dipped galvanized for superior corrosion resistance. Ideal for construction and structural applications. Custom lengths, grades Q235/A36/SS400. ISO certified, free samples available.

High-quality ASTM SAE1020 carbon steel round bar, hot rolled with diameters from 20mm to 420mm. Offers excellent mechanical properties for structural parts, shafts, and molds. 100% ultrasonic tested, MTC provided. Competitive pricing and large stock available.

High-quality spring steel round bar in grades 65Mn and 60Si2Mn, hot rolled and heat treated to HRC 20-40. OD range 12.7-3000mm with ±1% tolerance. Ideal for automotive, machinery, and industrial springs. Custom lengths and surface treatments available. Certified chemical and mechanical properties.

High carbon spring steel round bar in 16-300mm diameter. Meets JIS SUP7, DIN 60Si7, ASTM 9260 standards. Offers high fatigue strength and durability for heavy vehicle springs and industrial applications. Custom sizes and surface finishes available.

DIN 1.7225 42CrMo4 steel bar, 14mm diameter, cold drawn and normalized. High tensile strength up to 1080 MPa, excellent machinability. Ideal for auto parts and machinery. Custom lengths available. EN10204 certified.

SAE1020 carbon steel round bar, hot rolled, diameter 20mm to 420mm. High durability and machinability. ISO certified, with MTC. Custom lengths and surface options available. Ideal for shafts, construction, and manufacturing.

High strength and toughness alloy steel round bar, ideal for turbine bolts and high-temperature applications up to 510°C. Features good hardenability, fatigue strength, and custom sizes. 100% ultrasonic inspection available. Quenched and tempered condition.

25Cr2MoVA alloy steel round bar offers high strength and toughness up to 510°C. Ideal for turbine bolts and nuts. Available in 20-300mm diameter. Custom lengths, quenched and tempered. 100% ultrasonic inspection. MOQ 15 tons.

High-strength forged alloy steel round bar with excellent toughness and fatigue resistance. Ideal for heavy-duty shafts, gears, and axles. Available in diameters 20-300mm with custom cutting, heat treatment, and EN 10204 3.1 certification.

High bending and contact fatigue strength with excellent hardness and wear resistance. Heat treated condition available. Custom sizes from 5mm to 1000mm diameter. Ideal for transmission gears and mechanical components. Made in China.

High-strength 4340 alloy steel round bar with excellent toughness and hardenability. Ideal for heavy-duty shafts and gears. Available in normalized, annealed, or quenched and tempered conditions. Ultrasonic tested, competitive pricing, fast lead time.

High-strength 34CrNiMo6/1.6582 alloy steel round bar, 160mm diameter. Offers 1000-1200 N/mm² tensile strength, good ductility, and shock resistance. Suitable for shafts, gears, and high-duty engine parts. Available in various finishes and custom sizes. EN 10083-3 certified.

High strength alloy steel 20Cr2Ni4A round bar, hot rolled and heat treated. Excellent toughness and hardenability for carburized gears, shafts, and high-stress components. ISO 9001 certified. Custom sizes and cutting available.

High-strength alloy steel bar with tensile strength up to 1560 MPa. Ideal for heavy-duty shafts, crankshafts, and power industry components. Available in round bars 30-1200mm, with custom heat treatment and surface options. Certified quality.

High-strength quenched and tempered alloy steel round bar, 40mm diameter. Meets EN 10083-3 standards with tensile strength up to 1450 MPa. Ideal for heavy-duty shafts and gears. Custom sizes and third-party inspection available.

High-strength 30CrNiMo8 (1.6580) alloy steel round bar, hot rolled and forged. Meets EN 10083-3 standards with tensile strength up to 1450 MPa. Ideal for quenching and tempering. Custom sizes and certifications available for industrial applications.