Starrett 57626 A2 Tool Steel Flat Stock 0.75x1.75x18 in

Product Description

The STARRETT 57626 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Manufactured from AISI A2 tool steel, this flat stock measures 0.75 inches thick, 1.75 inches wide, and 18 inches long, with a weight of 6.72 pounds. A2 tool steel offers good dimensional stability during heat treatment and strong wear resistance after hardening, making it a reliable choice for punches, dies, gauges, and similar tooling components. Thickness, width, and square tolerances are held to +0.010 to 0.015 inches, with a length tolerance of +0.25 inches, ensuring consistent stock removal and predictable fit in precision setups.

This flat stock is suited for job shops, tool and die shops, and maintenance departments that fabricate or repair tooling in-house. The 18-inch length provides sufficient material for most small-to-medium tool blanks without requiring cut-down from longer bar stock. A2 grade is widely specified where through-hardening with minimal distortion is required, particularly in applications that demand a balance of toughness and wear resistance at moderate production volumes.

Key Features

• AISI A2 air-hardening tool steel for good dimensional stability during heat treat
• Thickness: 0.75 inches with +0.010 to 0.015 inch tolerance
• Width: 1.75 inches with +0.010 to 0.015 inch tolerance
• Length: 18 inches with +0.25 inch tolerance
• Square tolerance held to +0.010 to 0.015 inches
• Weighs 6.72 pounds per piece

Compatibility

Designed as a general-purpose A2 tool steel flat stock blank suitable for fabricating punches, dies, gauges, and other precision tooling components requiring air-hardening tool steel.

Installation Notes

Machining and heat treatment of A2 tool steel should be performed by qualified tool and die makers or machinists familiar with high-carbon alloy steels. Always follow appropriate personal protective equipment practices when grinding, cutting, or machining tool steel. Heat treatment should be performed in a controlled atmosphere or vacuum furnace to minimize decarburization. Consult the material data sheet for recommended austenitizing and tempering parameters before processing.