Starrett 54735 A2 Tool Steel Flat Stock 3/8x4x18 in

Product Description

The STARRETT 54735 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die work, and precision machining applications. Measuring 0.375 inches thick, 4 inches wide, and 18 inches long, this flat stock is ground to close tolerances, making it suitable for applications where dimensional accuracy is critical. The A2 tool steel designation indicates an air-hardening, medium-alloy cold-work steel with good dimensional stability during heat treatment. Machinists, toolmakers, and die makers install this stock when fabricating punches, dies, gauges, and similar precision tooling components.

This flat stock is suited for both job shop and production toolroom environments. The air-hardening characteristic of A2 tool steel reduces distortion during the hardening process compared to oil-hardening grades, which is advantageous when maintaining tight finished dimensions. The 18-inch length provides practical working stock for a variety of tooling layouts. The material is supplied in an annealed condition, ready for machining prior to heat treatment.

Key Features

• A2 air-hardening tool steel offers good dimensional stability during heat treat
• Thickness tolerance of plus or minus 0.001 inches for precise fit in tooling applications
• Width tolerance of plus 0.000 to 0.005 inches
• Length tolerance of plus 0.250 inches
• Square tolerance of plus or minus 0.001 inches
• Supplied in annealed condition, ready for machining

Compatibility

Designed as a general-purpose A2 tool steel flat stock for toolroom, die-making, and precision machining applications where air-hardening cold-work steel is specified.

Installation Notes

This material is worked by qualified machinists and toolmakers using standard milling, grinding, and EDM equipment. Follow established heat treatment procedures for A2 tool steel per the material specification when hardening. Always wear appropriate PPE when cutting or grinding tool steel. Consult applicable shop safety standards and the material data sheet before processing.