APPROVED VENDOR Alloy Steel Rectangular Bar: 0.75 in Thick, 0 in/-0.004 in
APPROVED VENDOR Alloy Steel Rectangular Bar is a High-Strength 4140 Alloy Steel Flat Bar, cold rolled and heat treatable, with a nominal size of 3 in x 24 in and 0.75 in thickness. It features a thickness tolerance…
SKU 3G-OTH-591228
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Product Description
APPROVED VENDOR Alloy Steel Rectangular Bar is a High-Strength 4140 Alloy Steel Flat Bar, cold rolled and heat treatable, with a nominal size of 3 in x 24 in and 0.75 in thickness. It features a thickness tolerance of 0 in/-0.004 in and includes a Material Certificate with Lot Number (MPN 40F.75X3-24).
Frequently Asked Questions
What is APPROVED VENDOR Alloy Steel Rectangular Bar used for?
This High-Strength 4140 Alloy Steel Flat Bar is used for jigs, fixtures, shafts, and structural components requiring wear resistance and toughness. Its cold-rolled finish and heat-treatable property make it suitable for precision machining and tooling applications across industrial sectors.
What are the specifications of the 40F.75X3-24 alloy steel bar?
The APPROVED VENDOR 40F.75X3-24 is a cold-rolled, heat-treatable 4140 alloy steel rectangular bar. Nominal size is 3 in x 24 in with 0.75 in thickness. Thickness tolerance is 0 in/-0.004 in. It includes a Material Certificate with Lot Number. Fabrication is Mill finish.
Where to buy APPROVED VENDOR 4140 flat bars in worldwide?
3G Electric supplies APPROVED VENDOR 4140 alloy steel flat bars worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this cold-rolled, heat-treatable rectangular bar with material certification.
How to select the right thickness tolerance for alloy steel bars?
For precision applications like die sets or machine components, choose a tight tolerance such as 0 in/-0.004 in to minimize post-machining. The APPROVED VENDOR bar offers this tolerance with a material certificate. Always verify your design clearance and heat-treat distortion allowance before ordering.
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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.









