{"product_id":"starrett-57184-a2-tool-steel-flat-stock-5-16x5x18-in","title":"Starrett 57184 A2 Tool Steel Flat Stock 5\/16x5x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 57184 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, die makers, and machinist shops that require a dimensionally consistent, readily heat-treatable steel blank. Manufactured from AISI Type A2 tool steel, this flat stock measures 5\/16 inches thick, 5 inches wide, and 18 inches long, and ships at approximately 7.97 pounds. A2 tool steel offers a balanced combination of wear resistance and dimensional stability during air-hardening heat treatment, making it a dependable choice for punches, dies, gauges, and general tool-and-die work where oil-quench distortion is a concern.\u003c\/p\u003e\n\u003cp\u003eThis flat stock is suited for use in tool rooms, job shops, and maintenance departments that fabricate or repair custom tooling components. The 18-inch length provides enough material for short-run blank layouts or single-piece tool fabrication without excessive waste. The 5-inch width accommodates wider die plates and similar flat-tool applications. Tolerances are held tightly across all dimensions, which reduces pre-machining setup time before grinding or EDM work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAISI Type A2 air-hardening tool steel — minimizes distortion during heat treatment compared to oil-hardening grades\u003c\/li\u003e\n  \u003cli\u003eThickness tolerance of +0.010 to +0.015 inches for consistent stock removal allowance\u003c\/li\u003e\n  \u003cli\u003eWidth tolerance of +0.010 to +0.015 inches across the 5-inch face\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of +0.25 inches on the 18-inch dimension\u003c\/li\u003e\n  \u003cli\u003eSquare tolerance of +0.010 to +0.015 inches for reliable squareness off the mill\u003c\/li\u003e\n  \u003cli\u003eShips as a single piece — no minimum multi-piece requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose A2 tool steel flat stock blank suitable for fabrication of punches, dies, gauges, forming tools, and other toolroom components requiring air-hardening tool steel in flat bar form.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMachining and heat treatment of tool steel should be performed by or under the supervision of a qualified toolmaker or machinist familiar with A2 steel processing requirements. Always relieve residual stress with a proper pre-heat cycle before hardening, and follow the material supplier heat-treatment recommendations for austenitizing temperature and air-cool procedures. Use appropriate personal protective equipment when cutting, grinding, or handling raw stock edges. Ensure machine guards and workholding are adequate for the workpiece size before beginning any milling or surface grinding operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel, AISI Type A2 Air-Hardening\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 5 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: 7.97 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 57184\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51543088726322,"sku":"57184","price":477.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_91810e99-717b-4212-a60a-b8d180ed9666.jpg?v=1785915240","url":"https:\/\/voomisupply.com\/products\/starrett-57184-a2-tool-steel-flat-stock-5-16x5x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}