Drill Rod Tool Steels 81176075 4142 Alloy Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 81176075 is a pre hardened flat stock bar cut from AISI/SAE Type 4142 chromium-molybdenum alloy steel. It measures 36 inches long, 2.5 inches wide, and 0.3125 inches thick, and weighs 7.93 pounds. Type 4142 is a through-hardened alloy steel known for high tensile strength, good toughness, and resistance to wear and fatigue. This flat stock is commonly used by machinists, tool and die makers, and fabricators who need a reliable starting material for structural components, tooling fixtures, shafts, and machine parts that require strength beyond what mild steel provides.

This flat stock is suited for general industrial and manufacturing applications where pre hardened alloy steel is required without the added step of heat treatment. Typical uses include fabrication of wear plates, support brackets, die components, and custom machine parts in job shop and production environments. The pre hardened condition means the material arrives ready for machining to final dimensions, saving processing time. It is appropriate for both light fabrication and heavier structural applications that demand consistent mechanical properties throughout the cross section.

Key Features

• AISI/SAE Type 4142 chromium-molybdenum alloy steel for high strength and toughness
• Pre hardened condition eliminates the need for additional heat treatment before use
• Nominal dimensions: 36 inches long, 2.5 inches wide, 0.3125 inches thick
• Length tolerance: plus 0.250 inches, Width tolerance: plus 0.005 inches, Thickness tolerance: plus 0.001 inches
• Square tolerance: 0.003 inches for consistent geometric accuracy
• Single-piece minimum order quantity for flexible procurement

Compatibility

Designed as a standard flat stock form for use in general machining, tooling, and fabrication applications requiring AISI/SAE Type 4142 pre hardened alloy steel material.

Installation Notes

Cutting, drilling, and machining of pre hardened 4142 alloy steel requires tooling rated for hardened materials; standard high-speed steel tooling may wear prematurely. Carbide-tipped or coated tooling is the common choice for this material grade. Follow applicable shop safety practices when cutting or grinding alloy steel, including use of appropriate PPE and ventilation. Consult the material safety data sheet and applicable facility codes before processing.