Starrett 57324 A2 Tool Steel Flat Stock 1/8x12x36 in

Product Description

The STARRETT 57324 is an A2 air-hardening tool steel flat stock bar sized at 0.125 inches thick, 12 inches wide, and 36 inches long. A2 tool steel offers excellent dimensional stability during heat treatment, making it a reliable choice for dies, punches, gauges, and precision tooling applications. This flat stock is held to tight tolerances: plus or minus 0.001 inches on thickness and squareness, plus 0.000 to 0.015 inches on width, and plus 0.25 inches on length. Machinists, toolmakers, and die makers rely on this material to fabricate precision components that require consistent hardness and wear resistance after heat treating.

This flat stock is suited for tool and die shops, production machining operations, and maintenance toolrooms in both industrial and commercial settings. It is commonly used to produce cutting tools, form dies, blanking dies, jig components, and wear plates. The 12-inch width and 36-inch length provide substantial material for larger tooling blanks or multiple smaller workpieces cut from a single bar. AISI A2 designation confirms air-hardening composition, which minimizes distortion compared to oil- or water-hardening grades.

Key Features

• AISI A2 air-hardening tool steel for minimal distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inches for precise fitment in tooling applications
• Width tolerance of plus 0.000 to 0.015 inches maintains close stock dimensions
• Squareness tolerance of plus or minus 0.001 inches per inch; edge squareness held to 0.003 inches per inch
• Length tolerance of plus 0.25 inches allows for clean finish cuts without undersize risk
• Ready-to-machine flat stock format reduces setup time at the milling or surface-grinding operation

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat stock suitable for use in general tool and die fabrication, punch and die sets, and precision machined components requiring air-hardening grades.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate tooling for hardened or semi-hardened steel. Follow standard shop safety practices including eye protection and proper workholding when sawing or milling. Heat treating should be performed according to AISI A2 specifications by a qualified heat treat facility; do not attempt to harden without proper equipment and process controls. Allow material to reach ambient temperature before performing finish grinding or final tolerance work.