Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

APPROVED VENDOR Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3/4 in x 18 in Nominal Size (WxL) - Wear-Resistant 4142 Alloy Steel Flat Bars
APPROVED VENDORWear-Resistant 4142 Alloy Steel Flat Bars

APPROVED VENDOR Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3/4 in x 18 in Nominal Size (WxL)

The Alloy Steel Rectangular Bar from APPROVED VENDOR is a Wear-Resistant 4142 Alloy Steel Flat Bar with a thickness of 0.3125 in, a nominal size of 3/4 in x 18 in, and a thickness tolerance of ±0.001 in. It is heat…

SKU 3G-OTH-585173

Brand
APPROVED VENDOR
Item
Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3/4 in x 18 in Nominal Size
Category
Wear-Resistant 4142 Alloy Steel Flat Bars
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
19143_18_0
Type
±0.001 in, Mill
Heat Treatable
Heat Treatable
Nominal Size (WxL)
3/4 in x 18 in
Thickness Tolerance
±0.001 in
Certifications Included
Material Certificate with Lot Number
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Alloy Steel Rectangular Bar from APPROVED VENDOR is a Wear-Resistant 4142 Alloy Steel Flat Bar with a thickness of 0.3125 in, a nominal size of 3/4 in x 18 in, and a thickness tolerance of ±0.001 in. It is heat treatable and includes a Material Certificate with Lot Number. 3G Electric interprets customer demand and delivers this genuine industrial product across 14 departments — with specialist depth in combustion, pumps and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the Alloy Steel Rectangular Bar 19143_18_0 used for?

This Wear-Resistant 4142 Alloy Steel Flat Bar is used for tooling, dies, jigs, and fixtures that require high strength and wear resistance. It is heat treatable, making it suitable for applications in machining, material handling, and general industrial fabrication where dimensional stability is critical.

What are the specifications of the APPROVED VENDOR 19143_18_0 rectangular bar?

The bar is 0.3125 in thick with a thickness tolerance of ±0.001 in, nominal size 3/4 in x 18 in (WxL). It is made from Wear-Resistant 4142 Alloy Steel, is heat treatable, and includes a Material Certificate with Lot Number. The brand is APPROVED VENDOR.

Where to buy the APPROVED VENDOR 19143_18_0 alloy steel bar worldwide?

3G Electric supplies and delivers the APPROVED VENDOR 19143_18_0 Wear-Resistant 4142 Alloy Steel Flat Bar worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure you receive the genuine product, supported by our specialist expertise across 14 industrial departments.

How to select the right alloy steel flat bar for wear-resistant applications?

Select based on required thickness tolerance, heat treatability, and dimensions. For the 4142 alloy, ensure the bar meets your hardness and wear needs after heat treatment. Always verify the Material Certificate with Lot Number for traceability. 3G Electric can help interpret your demand and source the correct specification.

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 wear-resistant 4142 alloy steel flat bars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from APPROVED VENDOR

View all APPROVED VENDOR parts
Alloy Steel Rectangular Bar: 0.75 in Thick, ±0.001 in, 6 in x 36 in Nominal Size (WxL), Hot Rolled (MPN 19250_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.75 in Thick, ±0.001 in, 6 in x 36 in Nominal Size (WxL), Hot Rolled (MPN 19250_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
Alloy Steel Rectangular Bar: 0.75 in Thick, ±0.001 in, 6 in x 6 ft Nominal Size (WxL), Hot Rolled (MPN 19250_72_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.75 in Thick, ±0.001 in, 6 in x 6 ft Nominal Size (WxL), Hot Rolled (MPN 19250_72_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
Alloy Steel Rectangular Bar: 0.75 in Thick, ±0.001 in, 1 1/2 in x 36 in Nominal Size (WxL), Mill (MPN 19175_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.75 in Thick, ±0.001 in, 1 1/2 in x 36 in Nominal Size (WxL), Mill (MPN 19175_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3/8 in x 36 in Nominal Size (WxL), Mill (MPN 19124_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3/8 in x 36 in Nominal Size (WxL), Mill (MPN 19124_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
Alloy Steel Rectangular Bar: 0.25 in Thick, ±0.001 in, 5 in x 36 in Nominal Size (WxL), Hot Rolled (MPN 19237_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.25 in Thick, ±0.001 in, 5 in x 36 in Nominal Size (WxL), Hot Rolled (MPN 19237_36_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
Alloy Steel Rectangular Bar: 0.25 in Thick, ±0.001 in, 1 1/2 in x 36 in Nominal Size (WxL) (MPN NT141126). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Test Report.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.25 in Thick, ±0.001 in, 1 1/2 in x 36 in Nominal Size (WxL) (MPN NT141126). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Test Report.
Alloy Steel Rectangular Bar: 0.1875 in Thick, ±0.001 in, 4 in x 6 ft Nominal Size (WxL), Hot Rolled (MPN 19227_72_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.1875 in Thick, ±0.001 in, 4 in x 6 ft Nominal Size (WxL), Hot Rolled (MPN 19227_72_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3 1/2 in x 18 in Nominal Size (WxL), Mill (MPN 19219_18_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.
APPROVED VENDOR
Alloy Steel Rectangular Bar: 0.3125 in Thick, ±0.001 in, 3 1/2 in x 18 in Nominal Size (WxL), Mill (MPN 19219_18_0). Key specifications — Brand: APPROVED VENDOR; Heat Treatable: Heat Treatable; Thickness Tolerance: ±0.001 in; Certifications Included: Material Certificate with Lot Number.