APPROVED VENDOR Alloy Steel Square Bar: 0.75 in Thick, ±0.07 in, 3 in x 3 in Nominal Size (WxL)
The APPROVED VENDOR Alloy Steel Square Bar is a high-strength 4140 alloy steel flat bar, hot rolled and mill finished, with a 0.75 in thickness and a 3 in x 3 in nominal size. It is heat treatable and supplied with a…
SKU 3G-OTH-591089
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Product Description
The APPROVED VENDOR Alloy Steel Square Bar is a high-strength 4140 alloy steel flat bar, hot rolled and mill finished, with a 0.75 in thickness and a 3 in x 3 in nominal size. It is heat treatable and supplied with a thickness tolerance of ±0.07 in, without included certifications.
Frequently Asked Questions
What is the APPROVED VENDOR Alloy Steel Square Bar used for?
This 4140 alloy steel square bar is used for high-strength structural and mechanical applications such as shafts, gears, and tooling. It is heat treatable for increased hardness and wear resistance, making it suitable for demanding industrial environments across machining, power transmission, and material handling.
What are the specifications of the APPROVED VENDOR Alloy Steel Square Bar?
The bar is 0.75 in thick with a 3 in x 3 in nominal size, hot rolled with a mill finish. It has a thickness tolerance of ±0.07 in, is heat treatable, and comes without included certifications. The manufacturer part number is SHT-4140-0.75X3X3.
Where to buy the APPROVED VENDOR Alloy Steel Square Bar worldwide?
3G Electric supplies the APPROVED VENDOR Alloy Steel Square Bar worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 4140 alloy steel bar.
How to select the right size of alloy steel square bar?
Select based on your application's required strength, machinability, and heat treatment needs. For this 4140 bar, verify the thickness tolerance of ±0.07 in and nominal size of 3 in x 3 in. Consult engineering drawings to ensure the bar meets your dimensional and mechanical requirements before ordering.
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3G Electric supplies APPROVED VENDOR high-strength 4140 alloy steel flat bars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









