Alloy Steel Rectangle Bar, 18" L, 3/8" W MPN:19124_18_0
Alloy Steel Rectangle Bar, 18" L, 3/8" W
This alloy steel rectangle bar is a versatile and durable material suitable for a variety of applications, including construction, manufacturing, and engineering projects. Its hot rolled fabrication and pre-hardened heat treatment provide a strong and stable base for machining and fabrication. The bar's 4142 grade alloy steel composition offers a high Brinell hardness of 187 and a Rockwell hardness of 94 HRB, making it resistant to wear and corrosion. Ideal for use in heavy-duty machinery, equipment, and structural components, this alloy steel rectangle bar is a reliable choice for demanding projects and applications.
Top product features:
- Pre-Hardened for increased strength and durability
- Heat Treatable for potential further hardening and enhancement of mechanical properties
- Machinability of 50 Percent for easier and more efficient processing and shaping
Top product applications:
- Machine Building
- Automotive Parts
- Structural Framing
Alloy Steel Rectangular Bar, Material Alloy Steel, Material Grade 4142, Thickness 0.3125 in, Thickness Tolerance +/-0.001 in, Overall Length 18 in, Overall Width 3/8 in, Fabrication Hot Rolled, Heat Treatable Heat Treatable, Heat Treatment Pre-Hardened, Mechanical Finish Mill, Yield Strength Not Rated, Tensile Strength Not Rated, Brinell Hardness 187, Rockwell Hardness 94 HRB, Machinability 50 Percent, Standards ASTM A322, Appearance Metallic
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 5 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 18.50
- Package Width: 0.88
- Package Height: 0.81
- Package Weight: 1.10
Product info last updated on March 18, 2026 8:24pm UTC
Category: Alloy Steel