Alloy Steel Square Bar, 6 ft L, 3 1/2 in W MPN:40S3.5-72
Alloy Steel Square Bar, 6 ft L, 3 1/2 in W
This alloy steel square bar is a versatile and durable material ideal for a wide range of applications, including machinery, equipment, and structural components. With its high yield strength of 60,000 psi and tensile strength of 95,000 psi, it can withstand heavy loads and stresses. Its machinability of 66 percent makes it easy to work with, and its heat treatability allows for customization of its properties. Suitable for use in the aerospace, automotive, and industrial sectors, this square bar is a reliable choice for projects requiring strength, durability, and precision.
Top product features:
- Material Alloy Steel, Material Grade 4140
- Heat Treatable, Heat Treatment Annealed
- Machinability 66 Percent
Top product applications:
- Machine Building
- Structural Framing
- Tooling and Machinery
Alloy Steel Square Bar, Material Alloy Steel, Material Grade 4140, Thickness 3.5 in, Thickness Tolerance 0 in/-0.008 in, Overall Length 6 ft, Overall Width 3 1/2 in, Fabrication Cold Rolled, Heat Treatable Heat Treatable, Heat Treatment Annealed, Mechanical Finish Mill, Yield Strength 60,000 psi, Tensile Strength 95,000 psi, Brinell Hardness 217 BHN, Rockwell Hardness Not Rated, Machinability 66 Percent, Standards ASTM A304, ASTM A322, ASTM A331, Appearance Cold Finished
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 February 5, 2026 9:35am UTC
Category: Alloy Steel