Alloy Steel Rectangle Bar, 18" L, 3 1/2" W MPN:NT143128
Alloy Steel Rectangle Bar, 18" L, 3 1/2" W
This 4142 flat stock is a versatile alloy steel rectangular bar ideal for various applications requiring high strength and durability. Its precision-ground finish and heat-treatable properties make it suitable for use in demanding industries such as aerospace, automotive, and construction. The material's high yield and tensile strength, combined with its resistance to corrosion, make it an excellent choice for fabricating components that require precision and reliability. With its compact size and easy handling, this flat stock is perfect for prototyping, small-batch production, and DIY projects, offering a cost-effective solution for a wide range of applications.
Top product features:
- Heat treatable to various hardness levels
- Precision ground for smooth finish
- Precipitation-hardened, tempered, through-hardened, and water-hardened for high strength and durability
Top product applications:
- Structural components such as engine mounts and transmission components
- Machine parts such as gears and shafts
- Tooling and dies for manufacturing and machining operations
Alloy Steel Rectangular Bar, Material Alloy Steel, Material Grade 4142, Thickness 0.25 in, Thickness Tolerance +/-0.001 in, Overall Length 18 in, Overall Width 3 1/2 in, Fabrication Hot Rolled, Heat Treatable Heat Treatable, Heat Treatment Precipitation-Hardened, Tempered, Through-Hardened, Water-Hardened, Mechanical Finish Precision Ground, Yield Strength 60,500 psi, Tensile Strength 95,000 psi, Brinell Hardness 261 BHN, Rockwell Hardness 32 HRC, Standards AISI 4142, ASTM A322, UNS G41420
Additional Information
- Country of Origin: US
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 2 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 18.00
- Package Width: 3.50
- Package Height: 0.25
- Package Weight: 4.46
- California Prop 65 Warning: WARNING: Cancer - www.P65Warnings.ca.gov
Product info last updated on February 3, 2026 6:36pm UTC
Category: Stainless Steel