Starrett 56513 A2 Tool Steel Flat Stock 0.75x1.5x36 in

Product Description

The STARRETT 56513 is a precision-ground A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who require tight dimensional control in their stock material. Measuring 0.75 inches thick, 1.5 inches wide, and 36 inches long, this bar arrives ground to a thickness tolerance of plus or minus 0.001 inches and a squareness tolerance of plus or minus 0.001 inches. The width tolerance is held to plus 0.000 to 0.005 inches, and length tolerance is plus 0.25 inches. Weighing approximately 13.19 pounds, it is sized for bench or surface grinder work without intermediate sawing in most applications.

A2 tool steel is a general-purpose air-hardening grade well suited for punches, dies, gauges, forming tools, and blanking tooling. Its balanced combination of wear resistance and toughness makes it a common choice in both job-shop and production-toolroom environments. This flat stock is supplied in the annealed condition, ready for machining and subsequent heat treatment. Typical users include tool and die shops, maintenance departments running punch press tooling, and precision machine shops building fixtures or gauging components.

Key Features

• AISI A2 air-hardening tool steel for predictable, low-distortion heat treatment
• Thickness tolerance of plus or minus 0.001 inches for precise stock allowance planning
• Width tolerance of plus 0.000 to 0.005 inches
• Squareness tolerance of plus or minus 0.001 inches with edge squareness held to 0.003 inches per inch
• Length tolerance of plus 0.25 inches on 36-inch bar
• Single-piece minimum order quantity for low-volume or one-off tooling needs

Compatibility

Designed as a standard A2 air-hardening tool steel flat stock suitable for punch, die, gauge, and fixture applications requiring controlled dimensional tolerances and subsequent heat treatment to tool-hardness levels.

Installation Notes

Machining and grinding of A2 tool steel flat stock is typically performed by toolmakers or machinists using conventional milling, surface grinding, and EDM equipment. Material should be handled with appropriate personal protective equipment, as ground edges can be sharp. Heat treatment to harden A2 steel requires controlled atmosphere or vacuum furnace equipment and should be performed by qualified personnel following AISI A2 heat-treat guidelines. Allow the bar to reach ambient temperature before final grinding to maintain dimensional accuracy.