{"product_id":"starrett-57578-a2-tool-steel-flat-stock-3-16x8x18-in","title":"Starrett 57578 A2 Tool Steel Flat Stock 3\/16x8x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57578 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 3\/16 inches thick, 8 inches wide, and 18 inches long, this flat stock is manufactured to tight dimensional tolerances, with thickness, width, and square tolerances held to +0.010 to 0.015 inches and a length tolerance of +0.25 inches. A2 tool steel is known for its good wear resistance and dimensional stability during heat treatment, making it a reliable choice for punches, dies, gauges, and other precision tooling components. The piece weighs 7.68 pounds.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for machine shops, toolrooms, and fabrication environments where close-tolerance A2 tool steel is required in a ready-to-machine form. It is commonly worked by machinists and tool-and-die makers who require stock that can be heat treated to high hardness after rough machining. The 8-inch width and 18-inch length provide sufficient material for a range of medium-scale tooling and fixture applications without requiring further breakdown from larger mill stock.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eA2 air-hardening tool steel per AISI designation, offering good toughness and wear resistance\u003c\/li\u003e\n\u003cli\u003eThickness: 3\/16 inches with +0.010 to 0.015 inches tolerance\u003c\/li\u003e\n\u003cli\u003eWidth: 8 inches with +0.010 to 0.015 inches tolerance\u003c\/li\u003e\n\u003cli\u003eLength: 18 inches with +0.25 inches tolerance\u003c\/li\u003e\n\u003cli\u003eSquare tolerance held to +0.010 to 0.015 inches for consistent right-angle geometry\u003c\/li\u003e\n\u003cli\u003eReady-to-machine flat stock format minimizes prep time in the toolroom\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard A2 air-hardening tool steel flat stock suitable for use in toolmaking, die making, punch fabrication, and precision fixture work where AISI A2 material specification is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA2 tool steel flat stock is machined, ground, and heat treated by qualified tool-and-die makers or machinists. All grinding and machining should be completed before hardening unless otherwise specified by the application. Air-hardening process for A2 steel requires controlled furnace heat treatment followed by still-air cooling — consult your heat treater for specific cycle parameters. Proper eye and hand protection should be used during all cutting and grinding operations.\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: 3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 8 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\u003eLength Tolerance\u003c\/strong\u003e: +0.25 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\u003eWeight\u003c\/strong\u003e: 7.68 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\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: 57578\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540350599474,"sku":"57578","price":430.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_0d353ddf-04b5-48cd-b915-57e5a4ce5275.jpg?v=1785852997","url":"https:\/\/voomisupply.com\/products\/starrett-57578-a2-tool-steel-flat-stock-3-16x8x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}