APPROVED VENDOR Alloy Steel Square Bar: 1.25 in Thick, 0 in/-0.005 in, 1 1/4 in x 24 in Nominal Size (WxL)
The APPROVED VENDOR Alloy Steel Square Bar is a High-Strength 4140 Alloy Steel Flat Bar, cold rolled and heat treatable, with a nominal size of 1 1/4 in x 24 in and a thickness tolerance of 0 in/-0.005 in (mill…
SKU 3G-OTH-591287
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Product Description
The APPROVED VENDOR Alloy Steel Square Bar is a High-Strength 4140 Alloy Steel Flat Bar, cold rolled and heat treatable, with a nominal size of 1 1/4 in x 24 in and a thickness tolerance of 0 in/-0.005 in (mill type). It includes a Material Certificate with Lot Number (MPN 40S1.25-24).
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 industrial components such as shafts, gears, and tooling. Its cold-rolled, heat-treatable construction provides durability in machining, power transmission, and material handling applications across 14 industrial departments.
What are the specifications of the APPROVED VENDOR 40S1.25-24 square bar?
The APPROVED VENDOR 40S1.25-24 is a cold-rolled, heat-treatable 4140 alloy steel square bar. Nominal size is 1 1/4 in x 24 in, thickness tolerance is 0 in/-0.005 in (mill type). It includes a Material Certificate with Lot Number for traceability.
Where to buy APPROVED VENDOR alloy steel square bars worldwide?
3G Electric supplies APPROVED VENDOR alloy steel square bars worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 4140 cold-rolled bar with material certification.
How to select the right alloy steel square bar for machining?
Select based on required strength, heat treatability, and dimensional tolerance. For precision work, choose cold-rolled bars like this 4140 with a tight 0 in/-0.005 in tolerance. Always verify the material certificate for lot traceability to ensure consistency in your application.
Used in
Common applications for APPROVED VENDORAPPROVED VENDOR Products
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.









