Hot Roll Round Bar
A36 Hot Rolled Steel Round Bar features a rough, blue-grey finish with rounded edges and dimensional variance throughout its length. This makes it well-suited for projects where precise tolerances are not critical but structural strength is essential.
Hot Rolled Round Bar is a versatile material used in everything from industrial maintenance and transportation equipment to ornamental ironwork and agricultural implements. Its strength and formability make it a staple in both functional and decorative applications.
Hot Rolled Steel Round Bar is a solid mild steel product ideal for general fabrication, manufacturing, and structural repairs. Its balance of durability and affordability makes it a reliable material for welding, forming, and machining tasks.
This steel round bar is easy to weld, cut, drill, and form with the proper tools and techniques. It offers excellent workability for custom builds, maintenance repairs, and shop fabrication projects requiring moderate strength and adaptability.
Specifications
Additional Notes
Suitable for general structural and industrial applications that do not require the higher strength of high-carbon or alloy steels.
Available Lengths
Precut and mill lengths available, or custom cut to size.
Measurement Guide
Diameter (A) x Length.
PageTitle
A36 Hot Rolled Steel Round Bar, Mild Steel Stock for Welding, Fabrication, and Repairs
Specifications
ASTM A36 Steel, Hot Rolled / 1008 HR CQ.
Surface Finish
Blue/Gray, slightly scale, grainy.
Heat Treatment
ASTM A36 is generally not heat treated but is typically stress relieved prior to grinding or machining.
Can be carburized for a higher surface hardness.
Can be carburized for a higher surface hardness.
Applications
Used for structural support, machinery parts, frames, fixtures, automotive and agricultural implements, brackets, stakes, forgings, and base plates.
Commonly used for shafts, railings, stakes, ornamental projects, and tines.
Commonly used for shafts, railings, stakes, ornamental projects, and tines.
Workability
Can be cut, machined, or welded using standard steel fabrication methods.
ASTM A36 is easily welded by all welding processes and produces high-quality joints.
Has a machinability rating of 72% (based on 1212 steel at 100%).
ASTM A36 is easily welded by all welding processes and produces high-quality joints.
Has a machinability rating of 72% (based on 1212 steel at 100%).
Mechanical Properties
Yield Strength: 36,000 psi.
Ultimate Tensile Strength: 58,000 psi.
Shear Strength: 43,500 psi.
Density: 0.282 lb/in³ (7.8 g/cc).
Melting Point: 2,590 - 2,670°F (1,420 - 1,460°C).
Brinell Hardness: 133.
Ultimate Tensile Strength: 58,000 psi.
Shear Strength: 43,500 psi.
Density: 0.282 lb/in³ (7.8 g/cc).
Melting Point: 2,590 - 2,670°F (1,420 - 1,460°C).
Brinell Hardness: 133.
Chemical Composition
Carbon (C): 0.26%.
Copper (Cu): 0.2%.
Iron (Fe): 99%.
Manganese (Mn): 0.75%.
Phosphorus (P): 0.04% max.
Sulfur (S): 0.05% max.
Copper (Cu): 0.2%.
Iron (Fe): 99%.
Manganese (Mn): 0.75%.
Phosphorus (P): 0.04% max.
Sulfur (S): 0.05% max.
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