Carbon Steel Square Bar, 36" L, 5/16" W MPN:18S.312-36
Carbon Steel Square Bar, 36" L, 5/16" W
This Carbon Steel Square Bar is a versatile and durable material ideal for a variety of applications, including construction, manufacturing, and repair projects. Its 1018 grade carbon steel composition provides excellent strength and machinability, making it suitable for use in machinery, tools, and other equipment. With a yield strength of 54,000 psi and tensile strength of 80,000 psi, this bar can withstand heavy loads and stresses. Its cold-rolled fabrication and unpolished finish ensure a smooth surface for welding or machining, while its heat treatability allows for further strengthening and modification. Perfect for DIY enthusiasts and professionals alike.
Top product features:
- Cold Rolled fabrication for improved machinability
- Heat Treatable for enhanced strength and durability
- 0.31 in thickness for structural integrity and stability
Top product applications:
- Machine Building
- Automotive Repair
- Fabrication Projects
Carbon Steel Square Bar, Material Carbon Steel, Material Grade 1018, Thickness 0.31 in, Thickness Tolerance -0.003 in, Overall Length 36 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: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 4 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 37.00
- Package Width: 1.00
- Package Height: 1.00
- Package Weight: 2.00
Product info last updated on February 4, 2026 6:46am UTC
Category: Carbon Steel