{"product_id":"drill-rod-tool-steels-81176570-alloy-steel-flat-stock","title":"Drill Rod Tool Steels 81176570 Alloy Steel Flat Stock","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DRILL ROD TOOL STEELS 81176570 is a pre-hardened alloy steel flat stock bar conforming to AISI\/SAE Type 4142 specification. It measures 36 inches long by 5.5 inches wide by 0.5 inches thick and weighs 27.92 pounds. This flat stock is supplied in a pre-hardened condition, making it ready for applications that demand higher strength and wear resistance than mild or annealed steel. Machinists, tool and die makers, and industrial fabricators use this material where close dimensional tolerances and consistent mechanical properties are required. It is appropriate for heavy-duty tooling, fixtures, dies, shafts, and structural machine components.\u003c\/p\u003e\n\u003cp\u003eAISI\/SAE 4142 is a chromium-molybdenum alloy steel known for its high fatigue strength, toughness, and through-hardening characteristics. This flat stock is suited for job shops, tool rooms, and production environments working on molds, jigs, punch plates, and mechanical components that see cyclic or impact loading. The pre-hardened condition eliminates the need for additional heat treatment in many applications, reducing lead time and processing steps on the shop floor.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAISI\/SAE 4142 chromium-molybdenum alloy steel in pre-hardened condition\u003c\/li\u003e\n  \u003cli\u003eDimensions: 36 inches long by 5.5 inches wide by 0.5 inches thick\u003c\/li\u003e\n  \u003cli\u003eLength tolerance: +0.250 inches\u003c\/li\u003e\n  \u003cli\u003eWidth tolerance: +0.005 inches\u003c\/li\u003e\n  \u003cli\u003eThickness tolerance: +0.001 inches\u003c\/li\u003e\n  \u003cli\u003eSquare tolerance: 0.003 inches for consistent flatness and parallelism\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose pre-hardened flat stock for use in tooling, fixture, and machine component fabrication applications requiring AISI\/SAE 4142 alloy steel material specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis material is intended for cutting, machining, and fabrication by qualified machinists or metalworkers using appropriate metalworking equipment. Standard metalworking safety practices apply, including the use of eye protection and secure workholding when sawing or milling. The pre-hardened condition affects machinability compared to annealed steel, so tooling selection and feed rates should be adjusted accordingly. Welding pre-hardened 4142 requires pre-heat and post-heat procedures to avoid cracking.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Specification\u003c\/strong\u003e: AISI\/SAE Type 4142 Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 36 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 5.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Thickness\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 27.92 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: +0.005 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\u003eSquare Tolerance\u003c\/strong\u003e: 0.003 inches\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: DRILL ROD TOOL STEELS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 81176570\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DRILL ROD \u0026 TOOL STEELS","offers":[{"title":"Default Title","offer_id":52123899789618,"sku":"81176570","price":499.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0bd010a1cae711f9686084786dbdb869_3ecebc10-ea7e-4beb-9643-f515965707a9.jpg?v=1790086443","url":"https:\/\/voomisupply.com\/products\/drill-rod-tool-steels-81176570-alloy-steel-flat-stock","provider":"Voomi Supply","version":"1.0","type":"link"}