Alloy Steel Square Bar, 12" L, 1 1/4" W MPN:40S1.25-12
Alloy Steel Square Bar, 12" L, 1 1/4" W
This alloy steel square bar offers superior strength and durability for demanding applications. Made from 4140 alloy steel, it features a yield strength of 60,000 psi and a tensile strength of 95,000 psi, making it ideal for use in heavy machinery, equipment, and structural components. Its cold rolled finish and annealed heat treatment ensure high machinability and a smooth surface. With its versatility and high performance, this alloy steel square bar is suitable for a wide range of industries, including manufacturing, construction, and oil and gas. It can be used for building frames, machinery components, and other structural elements.
Top product features:
- Heat Treatable
- Machinability of 66 Percent
- Cold Rolled Fabrication
Top product applications:
- Machine Building
- Structural Framing
- Heavy Equipment Fabrication
Alloy Steel Square Bar, Material Alloy Steel, Material Grade 4140, Thickness 1.25 in, Thickness Tolerance 0 in/-0.005 in, Overall Length 12 in, Overall Width 1 1/4 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, 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: 13.00
- Package Width: 2.00
- Package Height: 2.00
- Package Weight: 7.00
Product info last updated on February 5, 2026 10:10am UTC
Category: Alloy Steel