{"product_id":"a513-cold-roll-carbon-steel-round-tubing-1-2-in-od-strong-precise","title":"A513 Cold Roll Carbon Steel Round Tubing 1\/2 in OD - Strong, Precise","description":"\u003cp\u003eOur review of the A513 Cold Roll Carbon Steel Round Tubing finds it best for machinists, fabricators, and hobbyists who need a strong, dimensionally consistent shafting or pin material. The single biggest reason to buy is its combination of high strength and adherence to ASTM A513 standards, which makes it suitable for load-bearing small parts like pins, rods, and spindles while still offering good value for money. The tube arrives as a 72 in length of cold-drawn 1018 carbon steel that balances rigidity with predictable mechanical performance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA513 construction:\u003c\/strong\u003e Meets ASTM A513, providing a standardized material specification useful for mechanical and structural applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold drawn finish:\u003c\/strong\u003e Drawn over mandrel for improved roundness and surface finish, which simplifies machining and fitting operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact dimensions:\u003c\/strong\u003e 1\/2 in outside diameter with a 0.26 in inside diameter and 0.12 in wall, offering consistent geometry for pins, shafts, and spindles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1018 carbon steel:\u003c\/strong\u003e The material provides notable strength and rigidity suitable for components that see shear and bending loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong stock length:\u003c\/strong\u003e Supplied in a 72 in length, enabling multiple parts to be cut from a single piece and reducing the need for frequent reordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is aimed at professional fabricators, machine shops, and experienced hobbyists who need reliable, high-strength round tubing for mechanical parts such as pins, rods, shafts, spindles, and sprockets. The material and finish work well when straightness and surface quality matter and when components will be turned, milled, or pressed to fit.\u003c\/p\u003e\n\u003cp\u003eThose who need excellent weldability or who require very high machinability may want to consider alternate, more weld-friendly steel alloys or lower-carbon options. Also, applications requiring very tight inside-diameter tolerances should check the fit first, since some users note the inner diameter can be slightly smaller than expected.\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\u003eHigh strength and rigidity from 1018 carbon construction make it ideal for load-bearing parts.\u003c\/li\u003e\n\u003cli\u003eCold drawn over mandrel finish gives consistent roundness and a good surface for machining.\u003c\/li\u003e\n\u003cli\u003eMeets ASTM A513, providing a useful material spec for engineering and fabrication.\u003c\/li\u003e\n\u003cli\u003eLong 72 in length offers flexibility to cut multiple components from one piece.\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 than lower-carbon steels, so some processes may require adjustments.\u003c\/li\u003e\n\u003cli\u003eInner diameter may be slightly smaller than nominal on occasion, affecting 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 carbon steel\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\u003e0.26 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003e0.12 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\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe A513 Cold Roll Carbon Steel Round Tubing is a practical choice for users who need durable, standardized round stock for shafts, pins, and spindles. Its cold-drawn finish and ASTM A513 compliance deliver consistent geometry and strength at a reasonable price, though fabricators should account for slightly reduced weldability and possible minor variance in inner diameter when planning tight-tolerance assemblies.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing weldable?\u003c\/strong\u003e\u003cbr\u003eYes, but as 1018 carbon steel it has somewhat reduced weldability compared with lower-carbon steels, so appropriate welding procedures are advised.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the inner diameter be exact?\u003c\/strong\u003e\u003cbr\u003eMost pieces are within expected dimensions, but some customers report a slightly smaller inner diameter, so verify fit for tight-tolerance bores.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used for shafts and pins?\u003c\/strong\u003e\u003cbr\u003eYes, the material and dimensions are commonly used for pins, rods, shafts, spindles, and sprockets.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48185499779291,"sku":"B000H9LSRS","price":35.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_7db95fbc-711e-4a02-bd55-4d0d11fa5535.jpg?v=1769445825","url":"https:\/\/gearmusthave.com\/products\/a513-cold-roll-carbon-steel-round-tubing-1-2-in-od-strong-precise","provider":"GearMustHave","version":"1.0","type":"link"}