{"product_id":"starrett-54131-o1-tool-steel-flat-stock-3-8x6x18-in","title":"Starrett 54131 O1 Tool Steel Flat Stock 3\/8x6x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 54131 is an O1 oil-hardening tool steel flat stock bar measuring 3\/8 inch thick, 6 inches wide, and 18 inches long. Manufactured to AISI Type O1 material specification, this flat stock is used in toolmaking, die-making, and precision machining applications where consistent dimensional tolerances are critical. The thickness and squareness tolerances are held to plus or minus 0.001 inches, making it suitable for applications that require tight dimensional accuracy before heat treat. At 11.47 pounds per piece, this is a substantial bar suited for serious shop or toolroom use. Licensed machinists, toolmakers, and die makers are the primary users of this material.\u003c\/p\u003e\n\u003cp\u003eO1 tool steel flat stock in this size is commonly used in the fabrication of punches, dies, gauges, cutting tools, and fixtures in both production shops and toolrooms. The 6-inch width and 18-inch length provide enough material for a range of blanks and formed tool components. This bar ships in the annealed condition, ready for machining prior to oil-hardening heat treatment. It is appropriate for both one-off toolroom jobs and short-run production setups where dimensional stability and machinability are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAISI Type O1 oil-hardening tool steel construction for consistent heat treat response\u003c\/li\u003e\n  \u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precision fitment before hardening\u003c\/li\u003e\n  \u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of plus 0.250 inches, minus 0 inches\u003c\/li\u003e\n  \u003cli\u003eSquareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n  \u003cli\u003eSingle-piece packaging with a minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard AISI O1 oil-hardening tool steel flat stock suitable for general toolroom, die-making, and precision machining applications requiring this material form and size.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMachining and fabrication of tool steel flat stock should be performed by qualified machinists using appropriate cutting tools rated for tool steel. Material should be machined in the annealed condition prior to oil-hardening heat treatment. Follow established heat treat procedures and safety protocols when hardening, as improper quenching can cause cracking or distortion. Wear appropriate PPE when cutting, grinding, or handling raw steel stock.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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 Type O1 Oil Hardening\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 6 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 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: 0.000 to minus 0.005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.250 inches, minus 0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: 0.003 inches per inch on all edges\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 11.47 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\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: 54131\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51543400481074,"sku":"54131","price":304.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_ccccacb3-3084-4c01-b573-686e0a77ea69.jpg?v=1785917933","url":"https:\/\/voomisupply.com\/products\/starrett-54131-o1-tool-steel-flat-stock-3-8x6x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}