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APPROVED VENDOR Alloy Steel Square Bar: 3.5 in Thick, 0 in/-0.008 in, 3 1/2 in x 6 ft Nominal Size (WxL) - High-Strength 4140 Alloy Steel Flat Bars
APPROVED VENDORHigh-Strength 4140 Alloy Steel Flat Bars

APPROVED VENDOR Alloy Steel Square Bar: 3.5 in Thick, 0 in/-0.008 in, 3 1/2 in x 6 ft 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 3 1/2 in x 6 ft and a thickness tolerance of 0 in/-0.008 in. It includes…

SKU 3G-OTH-591239

Brand
APPROVED VENDOR
Item
Alloy Steel Square Bar: 3.5 in Thick, 0 in/-0.008 in, 3 1/2 in x 6 ft Nominal Size
Category
High-Strength 4140 Alloy Steel Flat Bars
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
40S3.5-72
Type
0 in/-0.008 in, Mill
Fabrication
Cold Rolled
Heat Treatable
Heat Treatable
Nominal Size (WxL)
3 1/2 in x 6 ft
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 Square 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 6 ft and a thickness tolerance of 0 in/-0.008 in. It includes a Material Certificate with Lot Number for traceability.

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 cold-rolled finish and heat-treatable property make it suitable for precision machining and hardening in industrial manufacturing.

What are the specifications of the APPROVED VENDOR Alloy Steel Square Bar?

The bar is 3.5 in thick with a thickness tolerance of 0 in/-0.008 in, nominal size 3 1/2 in x 6 ft. It is cold rolled, heat treatable, and made from high-strength 4140 alloy steel. A Material Certificate with Lot Number is included for traceability.

Where to buy APPROVED VENDOR Alloy Steel Square Bar worldwide?

3G Electric supplies the APPROVED VENDOR Alloy Steel Square Bar worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 4140 alloy steel flat bar.

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 4140 alloy steel with tight thickness tolerance like 0 in/-0.008 in. Always verify the material certificate for lot traceability to ensure consistency.

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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