Starrett 54703 A2 Tool Steel Flat Stock 1x2x36 in

Product Description

The STARRETT 54703 is an A2 air-hardening tool steel flat stock bar sized at 1 inch thick, 2 inches wide, and 36 inches long. A2 tool steel is an air-hardening, cold-work die steel known for its dimensional stability during heat treatment and its balance of toughness and wear resistance. This flat stock ships in the annealed condition, ready for machining, grinding, and subsequent heat treatment by a toolmaker, die maker, or machinist. At 23.45 pounds, it is a substantial bar suited for fabricating punches, dies, gauges, and cutting tools where tight dimensional tolerances are required.

This flat stock is used in toolroom and production environments where precise, machinable steel blanks are needed before hardening. Typical applications include die blocks, forming tools, blanking punches, and gauging fixtures in both job-shop and production machine shops. The tight thickness tolerance of plus or minus 0.001 inch and width tolerance of plus 0.000 to 0.005 inch make it suitable for close-tolerance tooling work where stock removal is carefully controlled. It is handled by tool and die makers, machinists, and metalworking professionals.

Key Features

• A2 air-hardening tool steel for minimal distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inch for close-tolerance machining
• Width tolerance of plus 0.000 to 0.005 inch
• Length tolerance of plus 0.25 inch
• Squareness held to 0.003 inch per inch on all edges
• Square tolerance of plus or minus 0.001 inch

Compatibility

Designed as a standard A2 air-hardening tool steel flat stock blank for use in toolroom fabrication, die making, and precision machining applications where AISI A2 material specification is required.

Installation Notes

Machining and grinding of A2 tool steel flat stock should be performed before hardening, using appropriate cutting fluids and tooling rated for tool steel. Heat treatment to harden A2 steel requires controlled atmosphere or vacuum furnace conditions and should be performed by a qualified heat treater following AISI A2 specifications. Always allow the bar to fully normalize and stress-relieve before finish grinding to final dimensions. Handle with care during transport to avoid edge damage that can affect tolerance integrity.