Starrett 57194 A2 Tool Steel Flat Stock 3/8x6x18 in

Product Description

The STARRETT 57194 is an A2 air-hardening tool steel flat stock blank intended for toolmakers, machinists, and die makers who need a precision-ground starting material for custom tooling, punches, dies, and fixtures. Measuring 0.375 inches thick, 6 inches wide, and 18 inches long, this flat bar is manufactured from AISI A2 tool steel, a chromium-based air-hardening grade known for its dimensional stability through the heat-treat cycle and good wear resistance. Thickness, width, and squareness tolerances are held to +0.010 to 0.015 inches, and length tolerance is +0.25 inches, giving machinists a consistent oversize blank to finish to final dimension.

A2 flat stock at this cross-section is commonly used in tool-and-die shops, maintenance and repair operations, and precision machine shops. Typical applications include blanking dies, form punches, gauges, and wear plates where moderate toughness and predictable air-hardening response are required. At 0.375 inches thick and 6 inches wide, the blank provides enough cross-section for most medium-duty tooling layouts without the need to rip down a larger bar. This stock is sold in single-piece quantities, making it practical for prototype and low-volume tooling projects.

Key Features

• AISI A2 air-hardening tool steel for stable, low-distortion heat treatment
• 0.375 inches thick by 6 inches wide by 18 inches long — ready-to-machine flat blank
• Thickness, width, and squareness tolerances of +0.010 to 0.015 inches for consistent stock removal
• Length tolerance of +0.25 inches provides full usable length after facing
• Single-piece minimum order quantity for prototype and short-run tooling needs

Compatibility

Designed as a general-purpose A2 air-hardening tool steel flat stock blank suitable for use in tool-and-die, maintenance machining, and precision fabrication applications requiring AISI A2 material.

Installation Notes

Machining and heat treating of tool steel should be performed by qualified machinists and heat-treat technicians following accepted shop practice. Material should be deburred and cleaned prior to heat treatment. Always consult the material manufacturer's published heat-treat data for A2 tool steel before hardening, tempering, or stress relieving. Appropriate eye and hand protection must be worn during all cutting, grinding, and handling operations.