{"product_id":"1-3-4-in-od-a513-cold-roll-carbon-steel-round-tubing-48-in","title":"1-3\/4 in OD A513 Cold Roll Carbon Steel Round Tubing - 48 in","description":"\u003cp\u003eOur review of the 1-3\/4 in OD A513 cold roll carbon steel round tubing finds it best suited for fabricators and hobbyists who need a straight, strong steel tube for shafts, pins, or custom repair work. The single biggest reason to consider this tube is its combination of rigidity and standardized manufacturing to ASTM A513, which gives predictable mechanical behavior for projects that demand strength more than ease of machining. The review highlights fit, steel quality, and length accuracy as consistent strengths while noting the inner bore can be slightly undersize on occasion.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASTM A513 construction:\u003c\/strong\u003e Provides a manufacturing standard that ensures consistent mechanical properties and suitability for structural or rotating parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-3\/4 in outside diameter:\u003c\/strong\u003e A common OD that fits many couplings and brackets without excessive modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.56 in inside diameter:\u003c\/strong\u003e Offers a predictable inner bore for shafts and adapters where close tolerances are beneficial.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.095 in wall thickness:\u003c\/strong\u003e Balances strength and weight so the tube resists bending while remaining workable for many fixtures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48 in length:\u003c\/strong\u003e A full 4 ft length that reduces the need to join pieces for medium-length projects and simplifies cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1018 carbon steel material:\u003c\/strong\u003e Gives the tube good strength and wear resistance for pins, rods, and sprocket shafts commonly found in mechanical work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is aimed at machinists, metalworkers, and repair technicians who need a reliable steel tube that meets ASTM A513 and performs well under load. It is a practical choice for building shafts, spindles, pins, and fixtures where rigidity and standard dimensions matter more than easy welding or maximum machinability.\u003c\/p\u003e\n\n\u003cp\u003eThose who should look elsewhere include fabricators who require superior weldability or users who need exceptionally tight internal bores every time; the tubing's inner diameter is reported by some buyers to be slightly smaller than nominal, so precision-bore applications may need additional finishing.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood material strength and stiffness from \u003cstrong\u003e1018 carbon steel\u003c\/strong\u003e, suitable for load-bearing parts.\u003c\/li\u003e\n\u003cli\u003eConsistent outer dimensions make it easy to fit into standard mounts and couplers.\u003c\/li\u003e\n\u003cli\u003eFull 48 in length saves time and joints for medium-length assemblies.\u003c\/li\u003e\n\u003cli\u003eMeets \u003cstrong\u003eASTM A513\u003c\/strong\u003e standard, giving confidence in manufacturing consistency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInner diameter can be slightly under nominal on some pieces, which may require reaming for tight tolerance fits.\u003c\/li\u003e\n\u003cli\u003eLower machinability and weldability compared with low-carbon steels, so expect more effort when fabricating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e1018 carbon steel (A513)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eMeets ASTM A513\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e1.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInside Diameter\u003c\/td\u003e\n\u003ctd\u003e1.56 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall Thickness\u003c\/td\u003e\n\u003ctd\u003e0.095 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e48 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 1-3\/4 in OD A513 cold roll tubing is a solid choice for anyone building shafts, pins, or structural assemblies where strength and standardized dimensions matter. It represents good value when \u003cstrong\u003esteel quality\u003c\/strong\u003e and predictable performance are priorities, though projects requiring immaculate internal bores or easy welding should plan for additional finishing.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing welded or seamless?\u003c\/strong\u003e\u003cbr\u003eThe listing references A513 cold roll tubing, which is a drawn over mandrel product made to that specification rather than being described as seamless.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the inner diameter fit a 1.5 in shaft?\u003c\/strong\u003e\u003cbr\u003eThe nominal 1.56 in ID should clear a 1.5 in shaft, but some customers report the bore can be slightly smaller, so verify and ream if a very tight fit is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be welded easily?\u003c\/strong\u003e\u003cbr\u003eThis is 1018 carbon steel with slightly lower weldability than lower carbon grades, so use appropriate welding procedures and pre\/post-heat if welding is critical.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48751047672027,"sku":"B000H9K3Y2","price":47.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_f96baed2-3820-44cc-953a-20b380d8445a.jpg?v=1778885134","url":"https:\/\/gearmusthave.com\/products\/1-3-4-in-od-a513-cold-roll-carbon-steel-round-tubing-48-in","provider":"GearMustHave","version":"1.0","type":"link"}