Drill Rod Tool Steels 81174526 Alloy Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 81174526 is an AISI/SAE Type 4142 alloy steel pre hardened flat stock bar measuring 18 inches long, 1 inch wide, and 0.5 inches thick. This material ships ready for machining, grinding, or fabrication without additional heat treating, making it a practical choice for tooling components, die parts, fixtures, and structural machine elements. It weighs approximately 2.54 pounds per piece. Machinists, tool and die makers, and industrial fabricators use this stock when a combination of toughness, strength, and dimensional consistency is required in a medium-carbon chromium-molybdenum alloy.

This flat stock is suited for job shops, maintenance departments, and production environments where pre hardened material reduces processing steps. Typical applications include wear plates, jig components, support rails, shafts, and general tooling blanks. The pre hardened condition of 4142 alloy steel provides a balance of machinability and hardness that fits a broad range of light to medium-duty mechanical applications in both small-batch and production settings.

Key Features

• AISI/SAE Type 4142 chromium-molybdenum alloy steel in pre hardened condition
• Nominal dimensions: 18 inches long, 1 inch wide, 0.5 inches thick
• Length tolerance: +0.125 inches / -0.000 inches
• Width tolerance: +0.005 inches / -0.000 inches
• Thickness tolerance: +0.001 inches / -0.000 inches
• Square tolerance: 0.003 inches for consistent cross-section geometry

Compatibility

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

Installation Notes

This material is intended for use by trained machinists and fabricators using appropriate metalworking equipment. Always secure the workpiece properly before cutting, drilling, or grinding. Use cutting tools and speeds rated for pre hardened alloy steel. Personal protective equipment including eye protection and appropriate gloves should be worn during all material processing operations.