Starrett 57665 A2 Tool Steel Flat Stock 1.5x2x18 in

Product Description

The STARRETT 57665 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. It measures 1-1/2 inches thick, 2 inches wide, and 18 inches long, with a shipping weight of 15.3 pounds. A2 tool steel offers good wear resistance and dimensional stability through the air-hardening process, making it a reliable choice for punches, dies, forming tools, and similar components. Thickness, width, and squareness tolerances are held to +0.010 to 0.015 inches. Length tolerance is +0.25 inches. This stock is intended for use by machinists, tool and die makers, and metalworking shops requiring consistent, machinable steel in a ready-to-cut flat bar format.

This flat stock is suited for both small job shops and production toolrooms where A2 air-hardening steel is specified. It is commonly used to fabricate punches, blanking dies, cutting tools, gauges, and fixture components. The 18-inch length allows for multiple parts to be cut from a single piece, and the 1-1/2-inch by 2-inch cross section suits medium to heavy-duty tooling applications. AISI Type A2 classification confirms the alloy and heat-treatment method, supporting consistent hardening results across production runs.

Key Features

• AISI A2 air-hardening tool steel for predictable, consistent hardening results
• 1-1/2 inches thick x 2 inches wide x 18 inches long flat bar format
• Thickness, width, and squareness tolerances of +0.010 to 0.015 inches for precision fitment
• Length tolerance of +0.25 inches, standard for flat stock
• Ready-to-machine condition suitable for dies, punches, gauges, and fixture components
• Sold individually (package quantity of 1, minimum order quantity of 1)

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat stock suitable for general toolmaking, die making, and precision machining applications where A2 specification material is required.

Installation Notes

Cutting, grinding, and heat treatment of tool steel should be performed by qualified machinists or toolmakers using appropriate equipment and personal protective equipment. Follow established shop practices and applicable safety standards when sawing, milling, or grinding this material. Air hardening requires controlled atmosphere or neutral salt bath conditions to achieve specified hardness; consult A2 heat-treatment data for proper austenitizing and cooling procedures. Allow the workpiece to reach ambient temperature before final inspection of dimensional tolerances.