Starrett 57667 A2 Tool Steel Flat Stock 1.5x3x18 in

Product Description

The STARRETT 57667 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 1.5 inches thick, 3 inches wide, and 18 inches long, this flat stock is cut to a size suited for fabricating punches, dies, gauges, and other tooling components that require dimensional stability through the hardening process. A2 tool steel is an air-hardening alloy grade known for its balance of wear resistance and toughness. This stock is supplied in an annealed condition, ready for machining prior to heat treatment. Machinists, tool-and-die makers, and industrial fabricators work with this material in shop environments.

A2 air-hardening flat stock in this size range is commonly used in tool and die shops, mold-making facilities, and precision machine shops. The 1.5-inch thickness and 3-inch width provide substantial cross-section material for blanking dies, forming tools, retainer plates, and structural tooling components. The 18-inch length allows for single-piece or multiple-part blanking from one bar. The controlled tolerances on all faces make this stock suitable for applications where dimensional accuracy after machining is critical before hardening.

Key Features

• A2 air-hardening tool steel per AISI material specification
• Thickness tolerance of +0.010 to 0.015 inches for consistent stock removal planning
• Width tolerance of +0.010 to 0.015 inches
• Length tolerance of +0.25 inches
• Square tolerance of +0.010 to 0.015 inches across all faces
• Single-piece package quantity suitable for low-volume toolroom procurement

Compatibility

Designed as a standard A2 tool steel flat stock for use in toolmaking, die fabrication, and precision machining applications where an air-hardening alloy grade is specified.

Installation Notes

A2 tool steel flat stock is machined by skilled tool-and-die makers or machinists using conventional milling, grinding, and drilling equipment. Heat treatment to final hardness should be performed by a qualified heat-treating facility following established procedures for A2 air-hardening steel. All rough machining should be completed before hardening. Grinding to final tolerance is typically performed after heat treatment to account for any dimensional movement during the hardening cycle.