Drill Rod Tool Steels 57938 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57938 is an O1 oil-hardening tool steel flat bar cut to 3/8 inches thick, 6 inches wide, and 36 inches long, weighing 23.2 pounds. O1 is an oil-hardening, general-purpose tool steel known for good dimensional stability during heat treatment and excellent machinability in the annealed state. This flat stock ships in the soft, pre-hardened state and is intended for heat treating to final hardness on the job or in a shop furnace. Toolmakers, die makers, and machinist shops routinely stock this material for jigs, fixtures, dies, punches, gauges, and custom tooling applications.

This flat bar is suited for a wide range of tool and die work in job shops, manufacturing facilities, and maintenance departments. The 3/8-inch thickness and 6-inch width make it a practical starting blank for knife blanks, stamping dies, forming dies, and precision fixtures where tight dimensional tolerances are required before and after hardening. It is commonly processed by milling, grinding, or EDM prior to heat treatment.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable, controlled heat treatment
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance blanks
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.5 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• Supplied in annealed condition for ease of machining prior to hardening

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat stock suitable for toolmaking, die making, and precision machining applications requiring AISI Type O1 material specification.

Installation Notes

Cutting, grinding, and machining should be performed in the annealed state before hardening and tempering. Oil-hardening tool steel requires proper heat treat procedures including controlled austenitizing temperature and quenching in oil - consult a qualified heat treat technician or metallurgical reference for your application. Always use appropriate personal protective equipment when cutting, grinding, or handling sharp-edged flat stock. Secure the workpiece firmly before any machining operation.