Starrett 54582 A2 Tool Steel Flat Stock 0.25x3x36 in

Product Description

The STARRETT 54582 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die work, and precision machining applications. Measuring 0.25 inches thick, 3 inches wide, and 36 inches long, this flat stock ships in a ground and precision-toleranced condition ready for layout, machining, and heat treatment. Thickness tolerance is held to plus or minus 0.001 inches, and squareness is maintained to 0.003 inches per inch of edge length. A2 tool steel offers good wear resistance and dimensional stability through the air-hardening process, making it a reliable choice for tool and die shops, mold makers, and maintenance machinists.

This flat stock is suited for fabricating punches, dies, gauges, and similar precision toolroom components. The 36-inch length provides a full bar for layout and profiling operations before final machining and heat treatment. Width tolerance runs plus 0.000 to 0.005 inches, and length tolerance runs plus 0.25 inches, which is standard for ground tool steel flat stock supplied in this size range. The A2 designation indicates AISI Type A2 air-hardening medium-alloy cold-work tool steel as specified by the material specification.

Key Features

• AISI Type A2 air-hardening cold-work tool steel
• Thickness: 0.25 inches with plus or minus 0.001 inch tolerance
• Width: 3 inches with plus 0.000 to 0.005 inch tolerance
• Length: 36 inches with plus 0.25 inch tolerance
• Squareness held to 0.003 inches per inch on all edges
• Ground flat stock condition for immediate layout and machining

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat stock suitable for toolroom fabrication of dies, punches, gauges, and other precision components requiring air-hardening heat treatment.

Installation Notes

Cutting and machining of A2 tool steel flat stock should be performed by a qualified machinist or tool and die maker using appropriate tooling for high-carbon alloy steel. Material should be stress-relieved or annealed before heavy stock removal if required by the application. Heat treatment to final hardness should follow AISI A2 tool steel specifications and be performed in a controlled atmosphere or vacuum furnace to minimize decarburization. Always handle ground flat stock with clean gloves or cotton rags to prevent surface corrosion before heat treatment.