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APPROVED VENDOR Alloy Steel Square Bar: 2.5 in Thick, 0 in/-0.006 in, 2 1/2 in x 3 in Nominal Size (WxL) - High-Strength 4140 Alloy Steel Flat Bars
APPROVED VENDORHigh-Strength 4140 Alloy Steel Flat Bars

APPROVED VENDOR Alloy Steel Square Bar: 2.5 in Thick, 0 in/-0.006 in, 2 1/2 in x 3 in Nominal Size (WxL)

The APPROVED VENDOR Alloy Steel Square Bar is a high-strength 4140 alloy steel flat bar with a nominal size of 2 1/2 in x 3 in and a thickness tolerance of 0 in/-0.006 in. This cold-rolled, heat-treatable bar…

SKU 3G-OTH-591159

Brand
APPROVED VENDOR
Item
Alloy Steel Square Bar: 2.5 in Thick, 0 in/-0.006 in, 2 1/2 in x 3 in Nominal Size
Category
High-Strength 4140 Alloy Steel Flat Bars
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
40S2.5-3
Type
0 in/-0.006 in, Mill
Fabrication
Cold Rolled
Heat Treatable
Heat Treatable
Nominal Size (WxL)
2 1/2 in x 3 in
Thickness Tolerance
0 in/-0.006 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 with a nominal size of 2 1/2 in x 3 in and a thickness tolerance of 0 in/-0.006 in. This cold-rolled, heat-treatable bar includes a Material Certificate with Lot Number for traceability.

Frequently Asked Questions

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

This high-strength 4140 alloy steel flat bar is used in industrial machining, tooling, and structural applications where heat-treatable, cold-rolled steel with tight thickness tolerance is required. It is commonly sourced for jigs, fixtures, and precision components.

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

The bar has a nominal size of 2 1/2 in x 3 in, thickness tolerance of 0 in/-0.006 in, and is cold-rolled, heat-treatable 4140 alloy steel. It includes a Material Certificate with Lot Number for traceability. Manufacturer part number is 40S2.5-3.

Where to buy APPROVED VENDOR Alloy Steel Square Bar worldwide?

3G Electric supplies the APPROVED VENDOR Alloy Steel Square Bar worldwide, handling full logistics and customs clearance. We source this cold-rolled, heat-treatable 4140 steel bar with material certification to support global industrial procurement.

How to select the right thickness tolerance for alloy steel bars?

Select a thickness tolerance like 0 in/-0.006 in when your application requires precise fit in machining or assembly. Cold-rolled, heat-treatable 4140 alloy steel offers consistent dimensions and strength. Always verify the tolerance against your design specs and request a Material Certificate for lot traceability.

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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