{"product_id":"starrett-54523-o1-tool-steel-flat-stock-1-1-4x3x36-in","title":"Starrett 54523 O1 Tool Steel Flat Stock 1-1\/4x3x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54523 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, jig and fixture fabrication, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 1-1\/4 inches thick, 3 inches wide, and 36 inches long, with a weight of 38.25 pounds. Thickness and squareness tolerances are held to tight limits, making this stock suitable for applications where dimensional accuracy matters before and after heat treatment. Tool and die makers, machinists, and metalworking shops are the primary users of this material.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is a common choice for producing punches, dies, gauges, cutting tools, and precision fixtures in job shops and manufacturing environments. The oil-hardening characteristic of O1 provides good dimensional stability during the hardening process, which reduces distortion compared to water-hardening grades. This 36-inch length accommodates a range of toolroom projects without requiring initial resizing. The material arrives in the annealed condition, ready for machining and subsequent heat treatment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable heat-treat response\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of +\/- 0.001 inches for precise as-received dimensional control\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to -0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of +0.015 inches\u003c\/li\u003e\n\u003cli\u003eSquareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eFull 36-inch bar length suits standard toolroom cutting schedules\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard AISI O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision machining applications requiring an oil-quenched tool steel in flat stock form.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists using appropriate coolant and tooling rated for tool steel. Heat treatment, including hardening and tempering, should be carried out by personnel familiar with O1 oil-quenching procedures and applicable shop safety requirements. Wear appropriate PPE when cutting or grinding. Handle heavy bar stock with mechanical assistance where required, as this bar weighs 38.25 pounds.\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 Type O1 Oil Hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 36 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Tolerance\u003c\/strong\u003e: +\/- 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: 0.000 to -0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: Edge: All 0.003 inches per inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 38.25 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: 54523\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542699737394,"sku":"54523","price":795.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_4dccfc9a-af9d-436b-b3a5-afbd1b4b7408.jpg?v=1785904686","url":"https:\/\/voomisupply.com\/products\/starrett-54523-o1-tool-steel-flat-stock-1-1-4x3x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}