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APPROVED VENDOR Alloy Steel Square Bar: 3.5 in Thick, 0 in/-0.008 in, 3 1/2 in x 24 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: 3.5 in Thick, 0 in/-0.008 in, 3 1/2 in x 24 in 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 24 in and a thickness tolerance of 0 in/-0.008 in. It…

SKU 3G-OTH-591282

Brand
APPROVED VENDOR
Item
Alloy Steel Square Bar: 3.5 in Thick, 0 in/-0.008 in, 3 1/2 in x 24 in Nominal Size
Category
High-Strength 4140 Alloy Steel Flat Bars
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
40S3.5-24
Type
0 in/-0.008 in, Mill
Fabrication
Cold Rolled
Heat Treatable
Heat Treatable
Nominal Size (WxL)
3 1/2 in x 24 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 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 24 in 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 components, tooling, and machinery parts that require heat treatability. It is commonly applied in jigs, fixtures, shafts, and gears across industrial manufacturing and maintenance operations.

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

The bar is cold rolled, heat treatable 4140 alloy steel, with a nominal size of 3 1/2 in x 24 in and a thickness tolerance of 0 in/-0.008 in. It includes a Material Certificate with Lot Number for full traceability. The manufacturer part number is 40S3.5-24.

Where to buy the 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 bar with material certification.

How to select the right alloy steel square bar for heat treating?

Select a heat treatable grade like 4140 for through-hardening or induction hardening. Confirm the thickness tolerance matches your machining allowance. Always request a Material Certificate with Lot Number, as included with this APPROVED VENDOR bar, to verify chemistry and 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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Alloy Steel Rectangular Bar: 1 in Thick, 0 in/-0.005 in, 2 1/2 in x 24 in Nominal Size (WxL), Mill (MPN 40F1X2.5-24). Key specifications — Brand: APPROVED VENDOR; Fabrication: Cold Rolled; Heat Treatable: Heat Treatable; Thickness Tolerance: 0 in/-0.005 in; Certifications Included: Material Certificate with Lot Number.
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