Carbon Steel Square Bar, 6' L, 3 1/2" W MPN:18S3.5-72
Carbon Steel Square Bar, 6' L, 3 1/2" W
This carbon steel square bar is a versatile and durable material suitable for a variety of applications, including construction, manufacturing, and DIY projects. Its cold rolled fabrication and heat treatable properties make it ideal for machining and fabrication. With a yield strength of 54,000 psi and tensile strength of 80,000 psi, this bar is strong and resistant to deformation. Its machinability is 78 percent, making it easy to work with. Suitable for projects requiring a high level of precision and durability, this carbon steel square bar is a reliable choice for professionals and hobbyists alike.
Top product features:
- Cold rolled fabrication process
- Heat treatable
- Machinability of 78 Percent
Top product applications:
- Structural Framing
- Building and Construction
- Machine Building and Repair
Carbon Steel Square Bar, Material Carbon Steel, Material Grade 1018, Thickness 3.5 in, Thickness Tolerance -0.005 in, Overall Length 6 ft, Overall Width 3 1/2 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: 4.00
- Package Height: 4.00
- Package Weight: 255.00
Product info last updated on January 19, 2026 12:39am UTC
Category: Carbon Steel