{"product_id":"a513-cold-roll-carbon-steel-round-tubing-2-1-2in-od-solid-strength","title":"A513 Cold Roll Carbon Steel Round Tubing 2-1\/2in OD - Solid Strength","description":"\u003cp\u003eIn this review the A513 Cold Roll Carbon Steel Round Tubing is evaluated for workshop and industrial use; the bottom line is that it is a straightforward, heavy-duty steel tube for mechanical parts where rigidity and strength matter most. The reviewer found it best suited to makers and fabricators who need a robust, standardized tube for pins, shafts, or custom fixtures, and the single biggest reason to buy is its combination of solid wall thickness and compliance with \u003cstrong\u003eASTM A513\u003c\/strong\u003e, which gives confidence in its uniformity and mechanical properties.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold roll drawn finish:\u003c\/strong\u003e Provides tighter dimensional tolerances and a smoother surface useful for machining and fit-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.25in wall thickness:\u003c\/strong\u003e Gives the tubing high rigidity and load-bearing capability for shafts, pins, and structural sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-1\/2in outside diameter:\u003c\/strong\u003e Matches common sizing for retrofit and fabrication projects that require standard OD components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1018 carbon steel composition:\u003c\/strong\u003e Offers balanced strength and toughness that is typical for pins, rods, spindles, and sprockets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24in length:\u003c\/strong\u003e A practical size for cutting to custom lengths without excessive waste for small shop projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets ASTM-A513:\u003c\/strong\u003e Ensures the tubing conforms to an industry standard for drawn-over-mandrel steel tubing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe tubing is ideal for machinists, metal fabricators, and hobbyists who build mechanical assemblies, drive components, or structural braces where a strong, consistent tube is required. Its cold-drawn finish and 0.25in wall make it appropriate for use as pins, shafts, or sleeves that will be machined or pressed into assemblies.\u003c\/p\u003e\n\u003cp\u003eThose who need excellent weldability or high-end machinability may want to consider alternative alloys or different temper conditions, because the A513 1018 grade trades slightly lower weldability and machinability for greater rigidity. It is not targeted at applications demanding stainless corrosion resistance or specialized heat treatment.\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\u003eSolid, consistent construction that customers report as high \u003cstrong\u003esteel quality\u003c\/strong\u003e and strength.\u003c\/li\u003e\n\u003cli\u003eGenerous 0.25in wall provides stiffness for load-bearing or rotating parts.\u003c\/li\u003e\n\u003cli\u003eStandard 2-1\/2in OD and 24in length reduce cutting waste for many projects.\u003c\/li\u003e\n\u003cli\u003eMeets ASTM-A513, so users get predictable dimensional and mechanical characteristics.\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 softer steels, so cutting and joining may require extra care.\u003c\/li\u003e\n\u003cli\u003eSome buyers report the inner diameter can be slightly smaller than expected, which may affect tight-fit applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\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 cold roll carbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e2-1\/2in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInside Diameter\u003c\/td\u003e\n\u003ctd\u003e2in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall Thickness\u003c\/td\u003e\n\u003ctd\u003e0.25in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e24in\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 practical choice for anyone needing a stiff, predictable tube for shafts, pins, or fixtures; its 0.25in wall and ASTM-A513 compliance make it good value for mechanical work. Buyers who prioritize easier welding or finer machinability should compare alternative steel grades, but for strength and uniformity this tubing performs well.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing suitable for machining into shafts?\u003c\/strong\u003e\u003cbr\u003eYes - the 1018 material and cold-drawn finish machine well enough for shafts and pins, though machinists should allow for slightly lower machinability than softer steels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it weld easily to other steel parts?\u003c\/strong\u003e\u003cbr\u003eIt can be welded, but the grade has somewhat lower weldability than milder steels, so proper preparation and welding technique are recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the dimensions accurate out of the box?\u003c\/strong\u003e\u003cbr\u003eDimensions generally match the listed 2-1\/2in OD and 2in ID, but some users note the inner diameter can be slightly small, so verify before tight-interference fits.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48201853501659,"sku":"B000H9RTIK","price":93.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_c977dcd3-3a8f-47c6-b0ee-ebc030a33eb9.jpg?v=1770364254","url":"https:\/\/gearmusthave.com\/products\/a513-cold-roll-carbon-steel-round-tubing-2-1-2in-od-solid-strength","provider":"GearMustHave","version":"1.0","type":"link"}