{"product_id":"starrett-57506-a2-tool-steel-flat-stock-3-32x4x18-in","title":"Starrett 57506 A2 Tool Steel Flat Stock 3\/32x4x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57506 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who require consistent pre-hardened stock for tooling, jigs, fixtures, and cutting tools. This piece measures 3\/32 inch thick, 4 inches wide, and 18 inches long, with a weight of 1.92 pounds. It is manufactured to tight dimensional tolerances — plus or minus 0.001 inch on thickness and square, plus 0.000 to 0.005 inch on width, and plus 0.250 inch on length — making it suitable for precision layout and fabrication work where stock dimensions must be reliable before heat treatment.\u003c\/p\u003e\u003cp\u003eA2 tool steel is a general-purpose air-hardening cold-work steel used across a broad range of tooling applications including blanking dies, punches, gauges, form tools, and trim dies. This flat stock format is commonly used in tool-and-die shops, maintenance shops, and machine shops for fabricating custom tooling components. Its air-hardening characteristic minimizes distortion during heat treatment, which is a key advantage when holding tight finished tolerances on complex tool geometries.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI A2 air-hardening tool steel — reduced distortion on heat treatment compared to oil-hardening grades\u003c\/li\u003e\n\u003cli\u003eTight thickness tolerance of plus or minus 0.001 inch for reliable pre-machining stock allowance\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of plus 0.000 to 0.005 inch supports close-fit layout work\u003c\/li\u003e\n\u003cli\u003eSquare tolerance of plus or minus 0.001 inch ensures perpendicularity straight from stock\u003c\/li\u003e\n\u003cli\u003eFlat stock form factor ready for sawing, milling, grinding, or EDM operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard A2 tool steel flat stock for use in tool-and-die, machining, and fabrication applications requiring AISI A2 cold-work air-hardening material in flat bar form.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and heat treatment of A2 tool steel should be performed by qualified tool-and-die makers or machinists familiar with cold-work tool steel processing. Always follow established shop safety procedures when cutting, grinding, or heat-treating tool steel stock, including appropriate PPE and ventilation. Heat treatment should follow the material specification for A2 steel with respect to austenitizing temperature, soak time, and air-cool procedure — consult the material data sheet for the applicable thermal process parameters.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: A2 Air-Hardening Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Specification\u003c\/strong\u003e: AISI A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 3\/32 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 4 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: plus or minus 0.001 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: plus 0.000 to 0.005 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.250 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Tolerance\u003c\/strong\u003e: plus or minus 0.001 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.92 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: 57506\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542513385778,"sku":"57506","price":265.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_86089fdd-19ad-4c01-aa5d-760b82a61d37.jpg?v=1785902479","url":"https:\/\/voomisupply.com\/products\/starrett-57506-a2-tool-steel-flat-stock-3-32x4x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}