OEM Alloy Steel Square Bar: 0.5 in Thick, ±0.055 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 0.5 in thickness, ±0.055 in tolerance, and a 3 in x 3 in nominal size. It is heat…
SKU 3G-OTH-591305
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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 0.5 in thickness, ±0.055 in tolerance, and a 3 in x 3 in nominal size. It is heat treatable and supplied without certificates.
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. Its heat-treatable property allows hardening for wear resistance. 3G Electric supplies this hot-rolled, mill-finished bar for industrial fabrication worldwide.
What are the specifications of the APPROVED VENDOR Alloy Steel Square Bar?
The bar is 0.5 in thick with a ±0.055 in tolerance, nominal size 3 in x 3 in, hot rolled and mill finished. It is made from heat-treatable 4140 alloy steel by APPROVED VENDOR. No certificates are included. 3G Electric sources this part number SHT-4140-0.5X3X3.
Where to buy the APPROVED VENDOR Alloy Steel Square Bar worldwide?
3G Electric supplies the APPROVED VENDOR Alloy Steel Square Bar worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source this 4140 alloy steel bar for delivery to your facility. Contact us for availability and lead time.
How to select the right alloy steel square bar for heat treating?
Select a heat-treatable grade like 4140 alloy steel, which offers good hardenability and strength. Confirm thickness tolerance and nominal size match your machining allowance. The APPROVED VENDOR bar is hot rolled and mill finished, suitable for post-processing. 3G Electric can advise on sourcing.
OEM Products
3G Electric supplies OEM 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.

