Carbon Steel Square Bar, 12" L, 5/16" W MPN:18S.312-12
Carbon Steel Square Bar, 12" L, 5/16" W
This carbon steel square bar is a versatile and reliable material for a variety of applications, including construction, automotive, and manufacturing. Its high strength and durability make it ideal for use in heavy-duty projects, such as building frames, machinery components, and other structural elements. The 1018 grade steel is also heat treatable, allowing for further strengthening and customization. With a machinability rating of 78%, this bar is easy to work with and can be precision-cut to meet specific requirements. Its compact size and lightweight design make it perfect for use in tight spaces and heavy-duty applications.
Top product features:
- Cold Rolled fabrication provides a smooth surface for machining and fabrication.
- Heat Treatable allows for the bar to be heat treated for increased strength and hardness.
- Mill finish provides a raw, unpolished surface for users to machine or fabricate as needed.
Top product applications:
- Structural framing in construction
- Machining and fabrication in manufacturing
- Crafting custom metal art and decorative items
Carbon Steel Square Bar, Material Carbon Steel, Material Grade 1018, Thickness 0.31 in, Thickness Tolerance -0.003 in, Overall Length 12 in, Overall Width 5/16 in, Fabrication Cold Rolled, Heat Treatable Heat Treatable, Heat Treatment No Heat Treatment, Mechanical Finish Mill, Yield Strength 54,000 psi, Tensile Strength 80,000 psi, Brinell Hardness 70 BHN, Rockwell Hardness 39 HRC, Machinability 78 Percent, Standards ASTM A108, ASTM A29, Appearance Unpolished
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 12.00
- Package Width: 0.30
- Package Height: 0.30
- Package Weight: 0.33
Product info last updated on April 4, 2026 12:44am UTC
Category: Carbon Steel