Alloy Steel Square Bar, 12" L, 2 3/4" W MPN:40S2.75-12
Alloy Steel Square Bar, 12" L, 2 3/4" W
This alloy steel square bar is ideal for heavy-duty applications that require high strength and durability. Made from grade 4140 alloy steel, it boasts a yield strength of 60,000 psi and a tensile strength of 95,000 psi, making it perfect for construction, manufacturing, and engineering projects. Its cold-rolled fabrication and annealed heat treatment ensure a smooth finish and enhanced machinability. With a hardness of 217 BHN, this bar is resistant to wear and tear, and its 66% machinability rating makes it easy to work with. Use it for building machinery, tools, or equipment that demands reliability and performance.
Top product features:
- Heat Treatable
- Cold Rolled Fabrication
- Machinability 66 Percent
Top product applications:
- Structural framing
- Machine parts and components
- High-strength fasteners and fixings
Alloy Steel Square Bar, Material Alloy Steel, Material Grade 4140, Thickness 2.75 in, Thickness Tolerance 0 in/-0.006 in, Overall Length 12 in, Overall Width 2 3/4 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
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: 13.00
- Package Width: 3.00
- Package Height: 3.00
- Package Weight: 28.00
Product info last updated on February 1, 2026 12:09pm UTC
Category: Alloy Steel