Drill Rod Tool Steels 81173965 4142 Flat Stock 18x6x0.25 in

Product Description

The DRILL ROD TOOL STEELS 81173965 is a pre hardened alloy steel flat stock bar conforming to AISI/SAE Type 4142 specification. Measuring 18 inches long by 6 inches wide by 0.25 inches thick and weighing 7.61 pounds, this flat stock is supplied in a ready-to-machine condition that eliminates the need for additional through-hardening by the end user. The pre hardened state delivers consistent mechanical properties throughout the cross section. Machinists, tool and die makers, and fabrication shops work with this material for applications requiring a balance of toughness, strength, and wear resistance that standard mild steel cannot provide.

AISI/SAE 4142 chromium-molybdenum alloy steel flat stock is commonly used in industrial fabrication, tooling fixtures, die components, shafts, gears, and structural machine parts where elevated strength is required. This piece is suited for low-volume and one-off jobs with a minimum order quantity of one piece, making it practical for job shops and maintenance departments that do not require full bar stock in bulk quantities. It is appropriate for both light machining and heavy stock removal depending on tooling selection.

Key Features

• AISI/SAE Type 4142 chromium-molybdenum alloy steel for high strength and toughness
• Pre hardened condition eliminates additional heat treatment before use
• Tight dimensional tolerances: length +0.125 inches, width +0.005 inches, thickness +0.001 inches
• Square tolerance of 0.003 inches supports precision layout and fixture work
• Single-piece minimum order quantity for low-volume or prototype applications
• Weighs 7.61 pounds - suitable for bench handling and standard machine table fixturing

Compatibility

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

Installation Notes

Machining and cutting of pre hardened 4142 alloy steel requires appropriate carbide or high-speed tooling rated for hardened stock. Secure the workpiece firmly using a vise or clamps rated for the material weight before any cutting or grinding operation. Welding pre hardened alloy steel requires preheat and post-weld heat treatment procedures per applicable welding codes to avoid cracking. Always use appropriate personal protective equipment when machining or cutting steel flat stock.