{"product_id":"starrett-57589-a2-tool-steel-flat-stock-5-16-x-18-in","title":"Starrett 57589 A2 Tool Steel Flat Stock 5\/16 X 18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57589 is an A2 air-hardening tool steel flat stock bar measuring 5\/16 inches thick, 5\/16 inches wide, and 18 inches long. Manufactured to AISI Type A2 specifications, this flat stock is used by machinists, tool-and-die makers, and metalworking professionals as raw material for punches, dies, fixtures, gauges, and other precision tooling. A2 tool steel offers good wear resistance and dimensional stability through the air-hardening process, making it a reliable choice for tool fabrication applications. The piece weighs approximately 0.5 pounds and ships in a single-piece quantity.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for job shop and production tooling environments where A2 air-hardening steel is specified. It is commonly used in the fabrication of cutting tools, form dies, blanking dies, and precision fixtures. The square cross-section profile simplifies layout and machining. It is appropriate for both one-off prototype tooling and low-volume production applications where tight dimensional tolerances are required before hardening.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type A2 air-hardening tool steel for consistent hardening results and reduced distortion\u003c\/li\u003e\n\u003cli\u003eSquare cross-section: 5\/16 inches thick by 5\/16 inches wide — simplifies fixturing and layout\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of +0.010 to 0.015 inches for predictable stock removal calculations\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of +0.010 to 0.015 inches matched to thickness tolerance\u003c\/li\u003e\n\u003cli\u003eLength tolerance of +0.25 inches provides usable overage for facing or parting\u003c\/li\u003e\n\u003cli\u003eSingle-piece packaging with no minimum order quantity above one unit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard A2 tool steel flat stock suitable for use in any application requiring AISI A2 air-hardening tool steel bar stock in a 5\/16 inches by 5\/16 inches square profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and heat treatment of tool steel should be performed by qualified machinists or tool-and-die professionals using appropriate personal protective equipment. A2 steel is air-hardened and should be brought to hardening temperature in a controlled atmosphere or salt bath furnace to minimize decarburization. Allow the workpiece to cool in still air on an insulating surface — do not quench in water or oil. Follow applicable shop safety standards and equipment manufacturer guidelines when machining or heat-treating this material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Specification\u003c\/strong\u003e: AISI A2 Air-Hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: STARRETT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 57589\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540510966066,"sku":"57589","price":138.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_97ef49bf-710e-425d-b21e-11ace4577688.jpg?v=1785856989","url":"https:\/\/voomisupply.com\/products\/starrett-57589-a2-tool-steel-flat-stock-5-16-x-18-in","provider":"Voomi Supply","version":"1.0","type":"link"}