Starrett 57349 A2 Tool Steel Flat Stock 0.5x1.5x36 in

Product Description

The STARRETT 57349 is an A2 air-hardening tool steel flat stock bar intended for toolmaking, die making, and precision machining applications. Manufactured to AISI A2 specification, this flat stock measures 0.5 inches thick, 1.5 inches wide, and 36 inches long, with a shipping weight of 8.79 pounds. A2 tool steel is known for its dimensional stability during heat treatment and its ability to hold a sharp edge after hardening, making it a reliable choice for punches, dies, gauges, and cutting tools. Machinists and tool and die makers work with this material in both job shop and production environments.

This flat stock is suited for applications requiring tight dimensional tolerances in the annealed condition prior to heat treating. The controlled tolerances on thickness, width, and squareness make it ready for layout and machining with minimal material removal needed to reach final dimensions. It is commonly used to fabricate blanking dies, form punches, trim tools, and fixture components where air-hardening steel is specified for reduced distortion during the hardening cycle.

Key Features

• AISI A2 air-hardening tool steel — reduced distortion during heat treat compared to oil-hardening grades
• Thickness tolerance of plus or minus 0.001 inches for consistent stock removal calculations
• Width tolerance of plus 0.000 to plus 0.005 inches
• Length tolerance of plus 0.25 inches
• Squareness tolerance of plus or minus 0.001 inches; edge squareness held to 0.003 inches per inch
• 36-inch length provides full bar stock for multiple blanks per piece

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat bar suitable for use in toolmaking, die making, and precision machining applications where A2 specification material is required.

Installation Notes

A2 tool steel flat stock is machined and ground by tool and die makers or machinists prior to heat treatment. Follow established AISI A2 hardening procedures, including proper austenitizing and air-quench cooling, performed by a qualified heat treater. Secure the workpiece firmly during machining and grinding operations. Always use appropriate eye protection and follow shop safety protocols when cutting or grinding tool steel.