Carbon Steel Square Bar, 6 ft L, 5/16 in W MPN:18S.312-72
Carbon Steel Square Bar, 6 ft L, 5/16 in W
This Carbon Steel Square Bar is a versatile and reliable material ideal for a variety of applications, including fabrication, manufacturing, and construction projects. Its cold-rolled fabrication and heat treatable properties make it suitable for use in high-stress environments. With a yield strength of 54,000 psi and tensile strength of 80,000 psi, this bar can withstand heavy loads and stresses. Its machinability of 78 percent also makes it easy to work with. The bar's dimensions and specifications meet ASTM standards, ensuring a high level of quality and consistency. It's perfect for building frames, machinery, and other structural components.
Top product features:
- Cold Rolled fabrication provides a precise and smooth surface finish.
- Heat Treatable allows for the bar to be heat treated to enhance its mechanical properties.
- Machinability of 78 Percent enables efficient and effective machining operations.
Top product applications:
- Fabrication and repair projects
- Machine building and manufacturing
- Structural support and reinforcement
Carbon Steel Square Bar, Material Carbon Steel, Material Grade 1018, Thickness 0.31 in, Thickness Tolerance -0.003 in, Overall Length 6 ft, 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: 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 February 7, 2026 12:39pm UTC
Category: Carbon Steel