Drill Rod Tool Steels 81175119 4142 Alloy Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 81175119 is a pre-hardened alloy steel flat stock bar cut to 18 inches long, 2.5 inches wide, and 1 inch thick. Manufactured to AISI/SAE Type 4142 specification, this chromium-molybdenum alloy steel arrives in a pre-hardened condition, eliminating the need for additional heat treatment before use. It weighs 12.69 pounds per piece. Machinists, tool and die makers, and fabricators use this flat stock to produce jigs, fixtures, mold bases, punches, dies, and other tooling components that require a combination of strength, toughness, and wear resistance.

This flat stock is suited for general-purpose tooling applications in job shops, manufacturing facilities, and maintenance departments. The pre-hardened condition makes it ready to machine directly to final dimensions. Typical uses include guide rails, wear plates, fixture plates, and structural tooling components where through-hardened stock is required. It is appropriate for both light production runs and one-off custom tooling work.

Key Features

• AISI/SAE Type 4142 chromium-molybdenum alloy steel for strength and toughness
• Pre-hardened condition - no post-purchase heat treatment required
• Length tolerance: plus 0.125 inches
• Width tolerance: plus 0.005 inches
• Thickness tolerance: plus 0.001 inches
• Square tolerance: 0.003 inches for consistent flatness and perpendicularity

Compatibility

Designed as a general-purpose pre-hardened flat stock for tooling, fixturing, and fabrication applications requiring AISI/SAE Type 4142 alloy steel material.

Installation Notes

Machining of pre-hardened 4142 alloy steel requires carbide tooling and appropriate cutting speeds for the hardness level - use standard shop practices for hardened alloy steel. Always use appropriate personal protective equipment when cutting, grinding, or machining. Secure the workpiece firmly before any material removal operation. Consult applicable facility safety standards and material data sheets before processing.