Starrett 57646 A2 Tool Steel Flat Stock 1x1.25x18 in

Product Description

The STARRETT 57646 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need reliable, dimensionally consistent stock for fabricating punches, dies, gauges, and other precision tooling components. It measures 1 inch thick, 1-1/4 inches wide, and 18 inches long, weighing 6.38 pounds. A2 tool steel is valued for its balanced combination of wear resistance and toughness after heat treatment, and its air-hardening characteristic reduces the risk of distortion and cracking during the hardening cycle compared to oil- or water-hardening grades.

This flat stock is suited for tool and die shops, maintenance departments, and machine shops requiring pre-cut lengths for direct use in fixture and tooling fabrication. The 18-inch length makes it appropriate for shorter tooling applications where full-length bar stock would require significant cutoff. It is supplied in the annealed condition, ready for machining prior to heat treatment. Trade professionals working in precision manufacturing, mold making, and punch-and-die applications are the primary users of this material.

Key Features

• A2 air-hardening tool steel (AISI A2) for reduced distortion during heat treatment
• Overall dimensions: 1 inch thick x 1-1/4 inches wide x 18 inches long
• Thickness tolerance: +0.010 to 0.015 inches
• Width tolerance: +0.010 to 0.015 inches
• Length tolerance: +0.25 inches
• Square tolerance: +0.010 to 0.015 inches

Compatibility

Designed as a standard A2 tool steel flat stock for use in tooling, die making, and precision machining applications requiring AISI A2 air-hardening material specification.

Installation Notes

Machining and finishing should be completed prior to heat treatment. Heat treatment of A2 tool steel should be performed by a qualified heat treater following established metallurgical procedures for austenitizing and air cooling. Appropriate personal protective equipment is required when cutting, grinding, or machining tool steel. Follow applicable shop safety standards and equipment manufacturer guidelines throughout fabrication.