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APPROVED VENDOR Alloy Steel Rectangular Bar: 1.25 in Thick, 0 in/-0.005 in - High-Strength 4140 Alloy Steel Flat Bars
APPROVED VENDORHigh-Strength 4140 Alloy Steel Flat Bars

APPROVED VENDOR Alloy Steel Rectangular Bar: 1.25 in Thick, 0 in/-0.005 in

The 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 36 in and a thickness of 1.25 in. It features a thickness…

SKU 3G-OTH-591426

Brand
APPROVED VENDOR
Item
Alloy Steel Rectangular Bar: 1.25 in Thick, 0 in/-0.005 in
Category
High-Strength 4140 Alloy Steel Flat Bars
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
40F1.25X3-36
Type
0 in/-0.005 in, Mill
Fabrication
Cold Rolled
Heat Treatable
Heat Treatable
Nominal Size (WxL)
3 in x 36 in
Thickness Tolerance
0 in/-0.005 in
Certifications Included
Material Certificate with Lot Number
View Full Spec Sheet

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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The 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 36 in and a thickness of 1.25 in. It features a thickness tolerance of 0 in/-0.005 in and includes a Material Certificate with Lot Number (MPN 40F1.25X3-36).

Frequently Asked Questions

What is the APPROVED VENDOR Alloy Steel Rectangular Bar used for?

This High-Strength 4140 Alloy Steel Flat Bar is used for structural and mechanical applications requiring strength and wear resistance, such as machine frames, tooling, and jigs. Its cold-rolled finish and heat-treatable property make it suitable for precision components in industrial manufacturing.

What are the specifications of the APPROVED VENDOR 40F1.25X3-36?

The bar is 1.25 in thick with a nominal size of 3 in x 36 in (WxL). It is cold-rolled, heat-treatable 4140 alloy steel, with a thickness tolerance of 0 in/-0.005 in. It includes a Material Certificate with Lot Number. The manufacturer part number is 40F1.25X3-36.

Where to buy the APPROVED VENDOR 4140 alloy steel bar worldwide?

3G Electric supplies the APPROVED VENDOR Alloy Steel Rectangular Bar worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this cold-rolled, heat-treatable 4140 flat bar with material certification.

How to select the right thickness tolerance for a 4140 alloy steel bar?

For precision applications, choose a thickness tolerance like 0 in/-0.005 in to ensure the bar stays within tight dimensional limits. This APPROVED VENDOR bar is cold-rolled for improved surface finish and dimensional accuracy. Always verify the tolerance matches your machining or assembly requirements.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED 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.

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