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APPROVED VENDOR Alloy Steel Rectangular Bar: 1.25 in Thick, 0 in/-0.008 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/-0.008 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 1/2 in x 12 in and a thickness of 1.25 in. It features a…

SKU 3G-OTH-591284

Brand
APPROVED VENDOR
Item
Alloy Steel Rectangular Bar: 1.25 in Thick, 0 in/-0.008 in
Category
High-Strength 4140 Alloy Steel Flat Bars
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
40f1.25x3.5-12
Type
0 in/-0.008 in
Fabrication
Cold Rolled
Heat Treatable
Heat Treatable
Nominal Size (WxL)
3 1/2 in x 12 in
Thickness Tolerance
0 in/-0.008 in
Certifications Included
Material Certificate with Lot Number
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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 1/2 in x 12 in and a thickness of 1.25 in. It features a thickness tolerance of 0 in/-0.008 in and includes a Material Certificate with Lot Number (MPN 40f1.25x3.5-12).

Frequently Asked Questions

What is the APPROVED VENDOR 4140 alloy steel rectangular bar used for?

This cold-rolled, heat-treatable 4140 alloy steel flat bar is used for high-strength industrial components such as shafts, gears, jigs, and fixtures. It is suitable for machining and fabrication in heavy equipment, automotive, and general manufacturing applications where dimensional stability and strength are required.

What are the specifications of the APPROVED VENDOR 1.25 in thick alloy steel bar?

The bar is 1.25 in thick with a thickness tolerance of 0 in/-0.008 in, nominal size 3 1/2 in x 12 in (WxL). It is cold-rolled, heat treatable, and made from high-strength 4140 alloy steel. A Material Certificate with Lot Number is included. MPN: 40f1.25x3.5-12.

Where to buy APPROVED VENDOR alloy steel rectangular bars worldwide?

3G Electric supplies and delivers APPROVED VENDOR alloy steel rectangular bars worldwide. We handle full logistics and customs clearance for international orders. Contact us for pricing and lead time on this 4140 cold-rolled flat bar with material certification.

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

For precision machining or tight-fit assemblies, choose a bar with a thickness tolerance like 0 in/-0.008 in to ensure consistent dimensions. Confirm the bar is cold-rolled and heat treatable if post-processing is needed. Always verify the material certificate matches your lot number 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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