{"product_id":"1-2-in-od-a513-cold-roll-carbon-steel-round-tubing-72-in-length","title":"1\/2 in OD A513 Cold Roll Carbon Steel Round Tubing - 72 in Length","description":"\u003cp\u003eOur review of the 1\/2 in OD A513 Cold Roll Carbon Steel Round Tubing summarizes who will benefit most and why this piece of drawn-over-mandrel tubing is worth considering. For fabricators and hobbyists needing a durable, straight shaft material, the single biggest reason to buy is its combination of high strength and consistent dimensions in a ready-to-use 72 in length. The review focuses on real-world fit, material behavior, and dimensional accuracy so readers can decide if this 1018 carbon steel tube suits projects such as pins, shafts, or fuel tank fittings.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A513 grade 1018 carbon steel offers reliable strength and rigidity for mechanical components that demand durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise OD:\u003c\/strong\u003e The 1\/2 in outside diameter provides a common, easy-to-fit size for collars, bushings, and connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner diameter and wall:\u003c\/strong\u003e A 0.37 in inner diameter with a 0.065 in wall gives a solid balance between stiffness and weight for shafts and spindles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e The full 72 in length arrives ready for long runs or cut-to-length jobs without the need to join sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Drawn over mandrel cold rolling produces a straight, smooth surface that helps with consistent fits and bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Meeting ASTM-A513 ensures the tube conforms to recognized mechanical and dimensional expectations for metal tubing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis tubing is best for machinists, metal fabricators, and hobbyists looking for a stiff, high-strength 1018 carbon steel round tube suitable for pins, rods, shafts, spindles, and sprockets. Its 1\/2 in OD and 72 in length make it practical for repair work, custom shafting, and structural supports where a continuous length is valuable.\u003c\/p\u003e\u003cp\u003eThose who need superior weldability or the highest machinability should consider alternate alloys, as customers note A513 steel sacrifices a bit of ease in welding and cutting in exchange for rigidity. If inner diameter tolerances must be exact for press fits, verify fit first because some users reported a slightly smaller ID than expected.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh material strength makes it suitable for load-bearing shafts and mechanical parts.\u003c\/li\u003e\n\u003cli\u003eConsistent 72 in length and cold-rolled finish reduce straightening and prep work.\u003c\/li\u003e\n\u003cli\u003eGood value for the quality, with customers praising steel quality and functionality.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWeldability and machinability are slightly reduced compared with lower-carbon steels, so fabrication may require more effort.\u003c\/li\u003e\n\u003cli\u003eInner diameter can be marginally smaller than nominal, which may affect tight press-fit applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eASTM-A513\u003c\/td\u003e\n\u003c\/tr\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\u003eOutside diameter\u003c\/td\u003e\n\u003ctd\u003e1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInside diameter\u003c\/td\u003e\n\u003ctd\u003e0.37 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003e0.065 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e72 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 1\/2 in OD A513 cold roll round tubing is a practical, cost-effective choice for anyone needing strong, straight 1018 carbon steel in a ready 72 in length. It is especially well suited to shafting, pins, and spindles where rigidity and consistent OD matter; just be mindful of modestly reduced machinability and the occasional slightly tight inner diameter when planning press-fit assemblies.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this tubing good for shafts and spindles?\u003c\/strong\u003e\u003cbr\u003eYes, the 1018 A513 material and 0.065 in wall provide the strength and stiffness typically required for shafts and spindles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it weld easily?\u003c\/strong\u003e\u003cbr\u003eIt can be welded, but customers report slightly lower weldability than lower-carbon steels, so use appropriate filler and preheat as needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre dimensions accurate out of the box?\u003c\/strong\u003e\u003cbr\u003eThe OD and wall are generally accurate, but some buyers have found the inner diameter slightly smaller than expected, so check fit before final assembly.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48198579093723,"sku":"B000H9K392","price":38.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_757c6a88-545e-45f9-b968-f06575faac91.jpg?v=1770268648","url":"https:\/\/gearmusthave.com\/products\/1-2-in-od-a513-cold-roll-carbon-steel-round-tubing-72-in-length","provider":"GearMustHave","version":"1.0","type":"link"}