{"product_id":"a513-cold-roll-carbon-steel-round-tubing-1-4-in-od-durable-shaft","title":"A513 Cold Roll Carbon Steel Round Tubing 1\/4 in OD - Durable Shaft","description":"\u003cp\u003eOur review of the A513 Cold Roll Carbon Steel Round Tubing finds it a practical choice for DIY machinists and light industrial users who need strong, straight shaft stock. The single biggest reason to buy is its combination of rigidity and dimensional consistency: drawn over mandrel 1018 carbon steel provides reliable strength for pins, rods, shafts and spindles while meeting ASTM A513 standards. For projects that demand a stiff, economical metal bar with predictable outer diameter and a decent inner clearance, this tubing performs well and delivers good value.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA513 steel composition:\u003c\/strong\u003e provides high strength and rigidity suitable for structural and rotating parts that need durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrawn over mandrel finish:\u003c\/strong\u003e yields a straighter, more uniform tube that is easier to machine and fit into assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4 in outside diameter:\u003c\/strong\u003e fits common small-bore applications such as dowel pins and small shafts without extra turning on the OD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.18 in inside diameter and 0.035 in wall:\u003c\/strong\u003e offer a balance of interior clearance and wall thickness for light-duty hydraulic or mechanical uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48 in length:\u003c\/strong\u003e gives enough material for multiple parts or longer shafts without needing to join sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets ASTM A513:\u003c\/strong\u003e ensures the tubing conforms to a recognized standard for mechanical tubing performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is well suited to home machinists, fabricators and maintenance technicians who need economical, straight carbon steel stock for pins, shafts, spindles and simple sprocket axles. Its 1018 grade and drawn over mandrel finish make it a good fit where rigidity and dimensional stability matter more than exceptional weldability.\u003c\/p\u003e\n\u003cp\u003eThose who require easy welding, high corrosion resistance, or very precise inner bore tolerances should consider alternative materials or specify a tighter-tolerance tube; some customers report the inner diameter can be slightly smaller than expected for tight-fit sleeve applications.\u003c\/p\u003e\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 overall steel quality and strength for mechanical parts and small shafts.\u003c\/li\u003e\n\u003cli\u003eConsistent outside diameter and straightness thanks to the drawn over mandrel process.\u003c\/li\u003e\n\u003cli\u003eReasonable length and wall thickness for multiple small projects, offering value for money.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLower machinability and weldability compared with some low-carbon steels, which may slow production work.\u003c\/li\u003e\n\u003cli\u003eInner diameter may run slightly undersized for applications requiring precise ID fits.\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003eProcess\u003c\/td\u003e\n\u003ctd\u003eCold roll, drawn over mandrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside diameter\u003c\/td\u003e\n\u003ctd\u003e0.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInside diameter\u003c\/td\u003e\n\u003ctd\u003e0.18 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003e0.035 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\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eMeets ASTM A513\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe A513 Cold Roll Carbon Steel Round Tubing is a dependable, cost-effective choice for makers and repair professionals who need sturdy shaft stock with good straightness and predictable OD. It is particularly good for pins, rods and spindles where strength and value matter, though buyers requiring easier welding or perfect ID tolerances should verify fit before committing to large runs.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing welded or seamless?\u003c\/strong\u003e\u003cbr\u003eThe listing describes cold roll drawn over mandrel tubing consistent with mechanical tubing standards under ASTM A513.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be welded easily?\u003c\/strong\u003e\u003cbr\u003eIt is 1018 carbon steel with slightly lower weldability than lower carbon steels, so standard welding is possible but may require preheat or attention to technique.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the inside diameter accept standard 1\/8 in rods?\u003c\/strong\u003e\u003cbr\u003eThe ID is 0.18 in so it will accommodate some 1\/8 in components, but a few users report the inner diameter can be slightly undersized so measure before final assembly.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48259899490523,"sku":"B000H9K2ZC","price":86.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_eb5d561d-13ce-49e7-a915-d032fc5876e6.jpg?v=1778267255","url":"https:\/\/gearmusthave.com\/products\/a513-cold-roll-carbon-steel-round-tubing-1-4-in-od-durable-shaft","provider":"GearMustHave","version":"1.0","type":"link"}