Starrett 54770 A2 Tool Steel Flat Stock 0.75x0.75x18 in

Product Description

The STARRETT 54770 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die work, and precision machining applications. Measuring 0.75 inches thick by 0.75 inches wide by 18 inches long, this flat stock is ground to close tolerances: thickness and squareness held to plus or minus 0.001 inches, width tolerance of plus 0.000 to 0.005 inches, and length tolerance of plus 0.250 inches. At 2.88 pounds per piece, it is sized for bench-scale toolroom use. AISI A2 tool steel responds well to air hardening, which reduces distortion during heat treatment compared to oil-hardening grades.

This flat stock is suited for fabricating punches, dies, gauges, jigs, and fixtures where dimensional stability after hardening is critical. The air-hardening characteristic of A2 tool steel makes it a practical choice in toolrooms and machine shops where controlled heat treatment is performed. Machinists and tool-and-die makers typically work this stock in the annealed condition before hardening and tempering to the required service hardness.

Key Features

• AISI A2 air-hardening tool steel for reduced distortion during heat treat
• Thickness: 0.75 inches with plus or minus 0.001 inch tolerance
• Width: 0.75 inches with plus 0.000 to 0.005 inch tolerance
• Length: 18 inches with plus 0.250 inch tolerance
• Squareness tolerance held to plus or minus 0.001 inches
• Weight: 2.88 pounds per piece

Compatibility

Designed as a standard A2 tool steel flat stock bar for general toolroom, die, and fixture fabrication applications requiring air-hardening material.

Installation Notes

Machining and grinding of A2 tool steel flat stock is performed by qualified machinists or tool-and-die makers in the annealed condition prior to heat treatment. Heat treating should be carried out by personnel familiar with AISI A2 tool steel specifications and appropriate atmosphere or vacuum furnace procedures. Always follow shop safety protocols when cutting, grinding, or handling tool steel stock, including appropriate PPE for metal machining operations.