{"product_id":"starrett-57198-a2-tool-steel-flat-stock-0-5x2x18-in","title":"Starrett 57198 A2 Tool Steel Flat Stock 0.5x2x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57198 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a reliable, machinable blank before heat treatment. Measuring 0.5 inches thick by 2 inches wide by 18 inches long, this flat stock is supplied in the annealed condition, ready for machining, grinding, and fitting prior to hardening. A2 tool steel offers a balanced combination of wear resistance and toughness, making it a standard choice for punches, dies, gauges, and similar toolroom components. The piece ships at approximately 5.1 pounds.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for job shops, tool and die operations, and maintenance facilities that fabricate or repair cutting tools, forming dies, and precision fixtures. The 18-inch length allows cutting to multiple shorter blanks from a single piece. The annealed A2 material machines cleanly with conventional high-speed tooling and responds predictably to air-hardening heat treatment cycles, reducing distortion compared to oil-hardening grades. It is a practical choice for low-to-medium production tooling applications in both industrial and prototype environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eA2 air-hardening tool steel — lower distortion during hardening than O1 oil-hardening grade\u003c\/li\u003e\n\u003cli\u003eSupplied annealed for ease of machining before heat treatment\u003c\/li\u003e\n\u003cli\u003eThickness tolerance: +0.010 to 0.015 inches for consistent stock removal planning\u003c\/li\u003e\n\u003cli\u003eWidth tolerance: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance: +0.25 inches\u003c\/li\u003e\n\u003cli\u003eSquare tolerance: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose A2 tool steel flat bar suitable for toolroom fabrication of punches, dies, fixtures, and gauges wherever AISI A2 air-hardening material is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and machining should be performed in the annealed condition before heat treatment. Heat treatment of A2 tool steel requires controlled atmosphere or salt-bath furnace equipment and should be performed by a qualified heat treater following recognized AISI guidelines. Eye protection, appropriate grinding guards, and chip containment are required during machining and cutoff operations. Handle sharp-edged stock with cut-resistant gloves.\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 Type A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2 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: 5.1 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: 57198\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540846477618,"sku":"57198","price":334.05,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_b58325bd-9c6d-4afb-b98d-fdee5d6067fc.jpg?v=1785864874","url":"https:\/\/voomisupply.com\/products\/starrett-57198-a2-tool-steel-flat-stock-0-5x2x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}