{"product_id":"starrett-54038-o1-tool-steel-flat-stock-5-32x4x18-in","title":"Starrett 54038 O1 Tool Steel Flat Stock 5\/32x4x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 54038 is an O1 oil-hardening tool steel flat stock bar, precision-ground to close dimensional tolerances for toolmaking, die work, jig fabrication, and general machining applications. Conforming to AISI Type O1 material specification, it measures 5\/32 inches thick, 4 inches wide, and 18 inches long, with a weight of 3.19 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making this stock well-suited for applications where dimensional accuracy before heat treatment is critical. It is supplied in the annealed condition, ready for machining prior to oil-hardening.\u003c\/p\u003e\n\u003cp\u003eO1 tool steel flat stock in this size range is commonly used by tool and die makers, machinists, and maintenance shops for producing punches, dies, gauges, fixtures, and small tooling components. The 4-inch width and 18-inch length provide a practical blank size for layout and cutting to final form. The bar ships as a single piece and is appropriate for both production shops and job-shop environments requiring tight-tolerance raw material stock.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAISI Type O1 oil-hardening tool steel material specification\u003c\/li\u003e\n  \u003cli\u003eThickness tolerance of plus or minus 0.001 inches for close-tolerance blanks\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\u003eSupplied annealed for machinability prior to heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard O1 oil-hardening tool steel flat stock blank suitable for toolmaking, die making, and precision machining applications requiring AISI Type O1 material.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMachining and heat treatment of tool steel should be performed by qualified machinists or tool and die makers familiar with O1 oil-hardening steel procedures. Always allow the bar to reach ambient temperature before precision layout work. When hardening, follow the appropriate austenitizing and oil-quench procedures for AISI O1 tool steel per the material manufacturer guidelines. Wear appropriate PPE when cutting, grinding, or heat treating tool 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: 5\/32 inches\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\u003eWeight\u003c\/strong\u003e: 3.19 pounds\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: Edge: All 0.003 inches per inch\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: 54038\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51543005561138,"sku":"54038","price":212.58,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_d49059a5-cd02-46bf-9257-877eafefdd78.jpg?v=1785913509","url":"https:\/\/voomisupply.com\/products\/starrett-54038-o1-tool-steel-flat-stock-5-32x4x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}