Starrett 54574 A2 Tool Steel Flat Stock 3/16 X 4 X 36 Inch

Product Description

The STARRETT 54574 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. It measures 3/16 inch thick, 4 inches wide, and 36 inches long, with a shipping weight of 8.79 pounds. Manufactured to AISI A2 material specification, this flat stock holds tight dimensional tolerances throughout its length, width, and thickness, making it suitable for work where accuracy is critical before and after heat treatment. Machinists, tool and die makers, and metalworking shops use this material when consistent cross-section and reliable air-hardening performance are required.

This flat stock is suited for fabricating punches, dies, gauges, and other tooling components where A2 tool steel properties are specified. The 36-inch length allows for multiple parts to be cut from a single bar. Its 4-inch width accommodates a range of die plate and blank sizes common in production toolroom environments. The bar ships ready to cut, grind, or machine to final dimensions before heat treating.

Key Features

• AISI A2 air-hardening tool steel for predictable, low-distortion heat treatment
• Thickness tolerance of plus or minus 0.001 inch for consistent stock removal planning
• Width tolerance of plus 0.000 to plus 0.005 inch
• Length tolerance of plus 0.25 inch
• Squareness tolerance of plus or minus 0.001 inch, with edge squareness of 0.003 inch per inch
• 36-inch bar length provides ample material for multiple tooling blanks per piece

Compatibility

Designed as a standard AISI A2 tool steel flat stock bar suitable for general toolroom use wherever A2 air-hardening material is specified by drawing or process requirement.

Installation Notes

Cutting and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate metal-cutting equipment. Heat treatment, including hardening and tempering of A2 tool steel, must be performed by personnel familiar with tool steel metallurgy and applicable shop procedures. Always wear appropriate personal protective equipment when cutting, grinding, or handling bar stock. Verify final dimensions after machining and prior to heat treatment.