Carbon Steel Square Bar, 6 ft L, 5/16 in W MPN:45s.312-72
Carbon Steel Square Bar, 6 ft L, 5/16 in W
This 6 ft long, 5/16 in wide carbon steel square bar is ideal for various industrial and fabrication applications. Made from 1045 grade steel, it offers high strength and hardness, with a yield strength of 77,000 psi and a tensile strength of 100,000 psi. The bar's case-hardened finish provides enhanced wear resistance, while its polished surface ensures smooth handling and machining. Suitable for use in construction, machinery, and equipment manufacturing, this carbon steel square bar is a reliable choice for projects requiring durability and strength. Its compact size and manageable weight make it easy to handle and transport.
Top product features:
- Heat Treatable
- Case-Hardened
- Polished Mechanical Finish
Top product applications:
- Structural framing for construction projects
- Machine parts and components for manufacturing equipment
- Tool handles and grips for hand tools and machinery
Carbon Steel Square Bar, Material Carbon Steel, Material Grade 1045, Thickness 0.31 in, Thickness Tolerance -0.004 in, Overall Length 6 ft, Overall Width 5/16 in, Fabrication Cold Rolled, Heat Treatable Heat Treatable, Heat Treatment Case-Hardened, Mechanical Finish Polished, Yield Strength 77,000 psi, Tensile Strength 100,000 psi, Brinell Hardness 90 BHN, Rockwell Hardness 43 HRC, Machinability 64 Percent, Standards ASTM A108, ASTM A29
Additional Information
- Country of Origin: US
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 3 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 73.00
- Package Width: 1.00
- Package Height: 1.00
- Package Weight: 3.00
Product info last updated on January 27, 2026 3:02pm UTC
Category: Carbon Steel