Starrett 57674 A2 Tool Steel Flat Stock 2x4x18 in

Product Description

The STARRETT 57674 is an A2 air-hardening tool steel flat stock bar measuring 2 inches thick, 4 inches wide, and 18 inches long. A2 tool steel is an air-hardening, cold-work die steel known for its dimensional stability during heat treatment, good toughness, and moderate wear resistance. This flat stock is supplied in the annealed condition, ready for machining prior to hardening. It is used by tool and die makers, machinists, and industrial fabricators who require consistent cross-section and tight tolerances for tooling, fixtures, and die components. Thickness, width, and square tolerances are held to +0.010 to 0.015 inches.

This flat stock is suited for cold-work tooling applications including blanking dies, forming dies, punches, shear blades, and precision fixtures. Its air-hardening characteristic minimizes distortion during the hardening process, making it a reliable choice for intricate die work where dimensional control after heat treatment is critical. Machinists and tool makers in job shops, production tooling departments, and specialty fabrication environments commonly stock this material for medium-to-large die plate applications.

Key Features

• AISI A2 air-hardening tool steel for minimal distortion during heat treatment
• 2 inches thick by 4 inches wide by 18 inches long nominal dimensions
• Thickness, width, and square tolerances held to +0.010 to 0.015 inches
• Length tolerance of +0.25 inches for consistent saw-cut stock
• Supplied annealed for machinability prior to hardening
• UNSPSC Code 31231200 for procurement classification

Compatibility

Designed as a standard A2 air-hardening tool steel flat stock for use in cold-work die, punch, fixture, and tooling applications where AISI A2 material specification is required.

Installation Notes

This material is handled and machined by qualified tool and die makers and machinists. All cutting, grinding, and heat treatment operations should follow established shop safety procedures and applicable OSHA guidelines. Wear appropriate PPE when cutting or grinding tool steel. Heat treatment should be performed by a qualified heat treater following the published A2 austenitizing and air-quench procedures — do not substitute oil or water quench for A2 steel.