Starrett 57196 A2 Tool Steel Flat Stock 1/2x3/4x18 in

Product Description

The STARRETT 57196 is an A2 air-hardening tool steel flat stock bar used in tool and die work, fixture making, jig construction, and precision machining applications. Measuring 0.5 inches thick, 0.75 inches wide, and 18 inches long, this flat stock ships in an oversize condition to allow for finish grinding to final dimensions. Thickness, width, and square tolerances all fall within a +0.010 to +0.015 inch range, with a length tolerance of +0.25 inches. At 1.91 pounds, it is sized for single-piece tooling projects requiring a tough, wear-resistant steel that air hardens with minimal distortion.

A2 tool steel flat stock is used by tool and die makers, machinists, and industrial maintenance technicians in both job shop and manufacturing environments. It is well suited for punches, dies, cutting tools, gauges, and similar tooling components that require a balance of hardness and toughness after heat treatment. This piece is intended for applications where stock is machined, ground, or shaped before hardening, making it a standard starting material in precision toolroom settings.

Key Features

• AISI A2 air-hardening tool steel — minimal distortion during heat treatment compared to oil-hardening grades
• Thickness of 0.5 inches, width of 0.75 inches, length of 18 inches
• Thickness, width, and square tolerances of +0.010 to +0.015 inches for consistent stock removal when grinding to size
• Length tolerance of +0.25 inches — allows for facing or cutting to net length
• Ships as flat bar stock ready for machining, grinding, or EDM operations prior to hardening
• Single-piece minimum order quantity with package quantity of 1

Compatibility

Designed as a standard A2 tool steel flat bar suitable for general toolroom use where AISI A2 air-hardening material specification is required.

Installation Notes

Machining and heat treatment of tool steel should be performed by qualified machinists or tool and die makers following established shop safety procedures. Always power down and de-energize machine tools before securing or adjusting workpieces. Heat treatment to full hardness requires controlled atmosphere or vacuum furnace equipment — follow the material supplier guidelines for austenitizing and air-quench cycles specific to A2 steel. Personal protective equipment including cut-resistant gloves is recommended when handling raw bar stock.