Starrett 57317 A2 Tool Steel Flat Stock 3/32x3x36 Inch

Product Description

The STARRETT 57317 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who require tight-tolerance stock for jigs, fixtures, punches, dies, and precision tooling. Manufactured to AISI A2 specification, this flat stock offers predictable air-hardening characteristics and minimal distortion during heat treat. The bar measures 3/32 inch thick, 3 inches wide, and 36 inches long, with a thickness tolerance of plus or minus 0.001 inch and a width tolerance of plus 0.000 to 0.005 inch. Squareness is held to 0.003 inch per inch on all edges, making it suitable for applications where dimensional consistency is critical.

This flat stock is used in tool and die shops, maintenance machining environments, and precision fabrication settings. Typical applications include blanking dies, forming dies, cutting tools, gauges, and wear-resistant machine components. The A2 grade is a general-purpose air-hardening tool steel well suited for applications requiring good wear resistance, moderate toughness, and dimensional stability after hardening. The 36-inch length provides practical stock for layout and cutting to finished length.

Key Features

• AISI A2 air-hardening tool steel for minimal distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inch for precise stock removal planning
• Width tolerance of plus 0.000 to 0.005 inch
• Squareness held to 0.003 inch per inch on all edges
• Length tolerance of plus 0.25 inch
• Ready-to-machine flat stock suitable for dies, punches, gauges, and fixtures

Compatibility

Designed as a general-purpose A2 air-hardening tool steel flat stock for use in tool and die fabrication, precision machining, and industrial maintenance applications where AISI A2 material specification is required.

Installation Notes

Cutting and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate tooling rated for hardened or semi-hardened steel. Always wear appropriate PPE when cutting, grinding, or heat treating. Heat treatment should follow established procedures for AISI A2 tool steel, including proper austenitizing and controlled air-cooling to achieve desired hardness. Consult material and heat treat specifications before processing.