Starrett 57536 A2 Tool Steel Flat Stock 0.5x1.25x18 in

Product Description

The STARRETT 57536 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.5 inches thick, 1.25 inches wide, and 18 inches long, this flat stock is held to tight dimensional tolerances: plus or minus 0.001 inches on thickness and squareness, plus 0.000 to 0.005 inches on width, and plus 0.250 inches on length. AISI A2 tool steel offers good wear resistance and dimensional stability during air-hardening heat treatment. Machinists, tool and die makers, and metalworking shops rely on this material for punches, dies, gauges, and similar precision components.

This flat stock is suited for job shops, tool rooms, and production environments requiring consistent, close-tolerance steel bar stock. The A2 grade is a general-purpose air-hardening tool steel that performs well in applications calling for moderate toughness combined with good abrasion resistance. It is commonly used when oil-hardening grades are not sufficient and when distortion control during heat treatment is a priority. Sold in single-piece quantity, this bar is ready for layout, machining, and subsequent heat treatment to customer specification.

Key Features

• AISI A2 air-hardening tool steel for controlled distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inches for precise fit in tooling applications
• Width tolerance of plus 0.000 to 0.005 inches
• Squareness tolerance of plus or minus 0.001 inches
• Length tolerance of plus 0.250 inches allowing stock removal to final dimension
• Weighs 3.2 pounds per piece

Compatibility

Designed as a standard A2 tool steel flat bar for use in tool and die making, fixture building, and precision machining wherever AISI A2 air-hardening grade material is specified.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists using appropriate metalworking equipment and personal protective equipment. Heat treatment to hardness should follow AISI A2 guidelines and be performed in a controlled atmosphere or vacuum furnace to minimize decarburization. Allow material to reach ambient temperature before final grinding to finished tolerance. Follow applicable shop safety codes when handling and processing tool steel bar stock.