Our steel round bars boast excellent mechanical properties, including high strength, wear resistance, and corrosion resistance, making them ideal for mechanical manufacturing, automotive parts, structural engineering, and more. Customize your order and enjoy fast delivery from our large inventory.

Q235 steel round bar is a round cross-section steel made of Q235 carbon structural steel. The diameter range is usually 6mm to 500mm. It has excellent strength, plasticity and welding properties. Its yield strength is ≥235MPa, and it is easy to process and shape. It is widely used in building structures (such as steel bars), machinery manufacturing (shafts, gears), fasteners (bolts, nuts) and other fields. With the advantages of low cost and stable supply, it has become an important choice for industrial basic materials.

Q345 steel round bar is a low-alloy high-strength structural steel named after its yield strength of 345MPa. It has various diameters and specifications and is suitable for a variety of engineering needs. Its chemical composition is optimized by alloying elements such as manganese, and it has excellent mechanical properties (tensile strength 490-675MPa, elongation ≥21%) and low-temperature toughness (-40℃ impact). It is widely used in bridges, ships, pressure vessels and mechanical structural parts, and supports hot rolling or normalizing delivery to meet the strength and reliability requirements under complex working conditions.

1010 steel round bar is a high-quality carbon structural steel with a carbon content of 0.08%-0.13%. It has low strength, high plasticity and toughness, excellent machinability, good weldability, and no temper brittleness. Its tensile strength is ≥335MPa and its elongation is ≥31%, which is suitable for hot and cold processing. It is often used to manufacture low-stress and high-toughness parts such as automobile bodies, containers, pipe fittings, gaskets, and carburized parts and carbonitrided parts with low core strength.

1018 steel round bar is a low-carbon high-quality carbon structural steel with a carbon content of 0.15%-0.20% and a manganese content of 0.60%-0.90%. It has good strength, plasticity and weldability. Its yield strength is ≥275MPa, tensile strength is ≥450MPa, elongation is ≥24%, the surface is smooth and the dimensional accuracy is high. It is suitable for cold drawing or normalizing processing. It is often used to manufacture bolts, studs, gears, pins, agricultural machinery parts and industrial machinery structural parts. It is a low-cost and high-toughness material widely used in mechanical engineering.

Looking for high-quality 1045 Steel Round Bars? We offer a wide range of steel round bars in various diameters, lengths, and grades suitable for mechanical manufacturing, building structures, automobile parts, and more. Our steel round bars are known for their high strength, excellent toughness, good processing performance, and corrosion resistance. Buy from us and get the most competitive price with quality assurance and fast delivery. Contact us now for more details!

A36 steel round bar is a low-carbon structural steel round bar that conforms to the ASTM A36 standard and is widely used in the industrial field with excellent comprehensive performance. Its yield strength is ≥250MPa, tensile strength is 400-550MPa, and elongation is ≥20%. It has high strength, good toughness and weldability. The hot rolling process ensures a smooth surface, and the diameter range covers 5mm to 250mm, and supports customized lengths. It is suitable for the manufacture of building structures, mechanical shafts, gears and fasteners, and is an economical and efficient basic material in industrial manufacturing.

SS400 steel round bar is a low-carbon structural steel round bar that complies with the Japanese JIS G3101 standard and is named after its tensile strength ≥400MPa. Its yield strength is ≥245MPa and its elongation is ≥26%. It has high strength, good toughness and weldability. The round bar diameter ranges from 5mm to 300mm, and it supports hot rolling or normalizing delivery, with a smooth surface and high dimensional accuracy. It is widely used in the manufacture of building structures, bridges, mechanical shafts and fasteners, and is an economical and efficient general material in the industrial field.

S10C carbon steel round bar is a high-quality low-carbon structural steel that meets the JIS G4051 standard, with a carbon content of 0.08%-0.13%, and has high toughness, good plasticity and weldability. Its tensile strength is ≥335MPa, yield strength is ≥205MPa, and elongation is ≥31%. It can be cold-processed or normalized. The round bar diameter ranges from Φ16mm to Φ350mm, with a smooth surface. It is suitable for manufacturing bolts, washers, partitions and low-stress mechanical parts. It is an economical and efficient general material in the industrial field.

S20C carbon steel round bar is a low-carbon structural steel round bar that meets the JIS G4051 standard, with a carbon content of 0.18%-0.23%. It has high toughness, good plasticity and weldability. Its tensile strength is ≥400MPa, yield strength is ≥245MPa, and elongation is ≥28%. It can be cold-processed or normalized. The round bar diameter ranges from Φ5mm to Φ250mm, with a smooth surface. It is suitable for manufacturing mechanical parts such as shafts, gears, pins and bolts. It is an economical and efficient general material in the industrial field.

4340 alloy steel round bar is a high-strength, medium-carbon nickel-chromium-molybdenum alloy steel with excellent hardenability, fatigue resistance and impact resistance. It is widely used in aerospace, automobile manufacturing and heavy machinery. Its chemical composition contains nickel (1.65%-2.00%), chromium (0.70%-0.90%) and molybdenum (0.20%-0.30%). After heat treatment, the tensile strength can reach more than 980 MPa, the yield strength exceeds 835 MPa, and it has high toughness and wear resistance.

4140 alloy steel round bar is a high-strength, medium-carbon chromium-molybdenum alloy steel with excellent hardenability, toughness and wear resistance. It is widely used in machinery manufacturing, automobiles, aerospace and petroleum industries. Its chemical composition contains carbon (0.38%-0.43%), chromium (0.80%-1.10%) and molybdenum (0.15%-0.25%). After heat treatment, the tensile strength can reach 1080 MPa, the yield strength exceeds 930 MPa, and the hardness reaches 217HBW. It is suitable for high-load parts such as crankshafts, gears, transmission shafts and oil drill pipes.