Starrett 57610 A2 Tool Steel Flat Stock 0.5x4.5x18 in

Product Description

The STARRETT 57610 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, die makers, and machinist trades requiring a reliable, dimensionally consistent steel blank. Manufactured to AISI A2 specification, this flat stock measures 0.5 inches thick, 4.5 inches wide, and 18 inches long, with a shipping weight of 11.41 pounds. A2 tool steel offers good wear resistance and dimensional stability during air-hardening heat treatment, making it a standard choice for punches, dies, gauges, and precision tooling components. Thickness, width, and squareness tolerances are held to +0.010 to +0.015 inches, and length tolerance is +0.25 inches.

This flat stock is suited for job shop, tool room, and production environments where a pre-sized A2 blank reduces raw material prep time. Typical applications include fabricating cutting tools, stamping dies, forming tools, and precision fixtures. The 18-inch length provides enough material for multiple tooling blanks or a single large component, and the 4.5-inch width accommodates wide die sections without additional edge jointing. Machinists and tool and die professionals working to close tolerances will find the as-supplied dimensions consistent with standard tool steel flat stock practice.

Key Features

• AISI A2 air-hardening tool steel for good wear resistance and dimensional stability through heat treatment
• Thickness: 0.5 inches with tolerance of +0.010 to +0.015 inches
• Width: 4.5 inches with tolerance of +0.010 to +0.015 inches
• Length: 18 inches with tolerance of +0.25 inches
• Squareness tolerance held to +0.010 to +0.015 inches
• Single-piece package quantity with no minimum order beyond one unit

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat stock blank suitable for use in tool room, die-making, and precision machining applications requiring A2 material specification.

Installation Notes

Cutting, grinding, and heat treatment of tool steel should be performed by qualified tool and die makers or machinists familiar with A2 steel procedures. Follow established shop safety practices when sawing or surface grinding tool steel, including use of appropriate coolant and personal protective equipment. Heat treatment to full hardness requires proper oven or furnace equipment and should follow AISI A2 recommended soak temperatures and air-quench procedures. Always allow material to reach ambient temperature before taking final measurements.