{"product_id":"a513-cold-roll-carbon-steel-round-tubing-2-1-2-in-od-durable-tube","title":"A513 Cold Roll Carbon Steel Round Tubing 2-1\/2 in OD - Durable Tube","description":"\u003cp\u003eOur review of the A513 Cold Roll Carbon Steel Round Tubing finds it best suited for fabricators, hobbyists, and light industrial users who need a strong, predictable short length of tubing. The single biggest reason to consider this tubing is its rigidity and consistent wall thickness from the drawn-over-mandrel process, which makes it reliable for shafts, pins, and simple structural uses where strength matters more than weldability. This review focuses on fit, material properties, and practical uses based on actual customer feedback and the product specification.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA513 construction:\u003c\/strong\u003e Provides a high-strength cold-rolled finish that improves rigidity for mechanical parts and structural applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-1\/2 in outside diameter:\u003c\/strong\u003e Offers a common, easy-to-machine size that fits many retrofit and custom projects without complex cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.125 in inside diameter:\u003c\/strong\u003e Delivers a clear ID for fitting smaller shafts and components while maintaining a solid wall for load-bearing uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.1875 in wall thickness:\u003c\/strong\u003e Balances strength and weight so the tubing can be used for spindles, pins, and light drive components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48 in length:\u003c\/strong\u003e Arrives in a manageable 4-ft length that is convenient for handling, storage, and cutting to size in most shops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets ASTM-A513:\u003c\/strong\u003e Ensures it conforms to a recognized tubing standard for cold-rolled mechanical tubing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is ideal for machinists, metalworkers, and small fabrication shops that need a durable, cold-rolled tube for parts like pins, rods, shafts, spindles, and sprockets. It is also useful for hobbyists restoring mechanical equipment who require a predictable, straight tube with a solid wall for load-bearing jobs.\u003c\/p\u003e\n\u003cp\u003eThose needing exceptional weldability, very tight ID tolerances for precision bearings, or specialty alloy corrosion resistance should look elsewhere; the A513 1018-style carbon steel excels at strength and formability rather than advanced welding characteristics or stainless performance.\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 material strength and rigidity make it suitable for mechanical and structural uses.\u003c\/li\u003e\n\u003cli\u003eConsistent drawn-over-mandrel finish yields predictable wall thickness and a straight tube for machining.\u003c\/li\u003e\n\u003cli\u003eReasonable value for a cold-rolled carbon steel tube in a common 2-1\/2 in size.\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 may be slightly smaller than expected for some customers, which can affect tight-fit components.\u003c\/li\u003e\n\u003cli\u003eCarbon steel has lower weldability compared with some mild steels and is not corrosion resistant without coating.\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\u003eA513 cold roll carbon steel (1018 type)\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\u003e2-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInside Diameter\u003c\/td\u003e\n\u003ctd\u003e2.125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall Thickness\u003c\/td\u003e\n\u003ctd\u003e0.1875 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\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe A513 Cold Roll Carbon Steel Round Tubing is a practical choice for anyone who needs a sturdy, straightforward 2-1\/2 in tube for shafts, pins, and light structural work. It delivers good strength and consistent dimensions for general machining and fabrication, representing solid value when corrosion resistance and exceptional weldability are not primary concerns.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing good for shafts and pins?\u003c\/strong\u003e\u003cbr\u003eYes, the drawn-over-mandrel A513 tube and 0.1875 in wall make it suitable for shafts, pins, and similar mechanical parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill I need to coat the steel?\u003c\/strong\u003e\u003cbr\u003eIf the application is exposed to moisture or outdoors, a protective coating or paint is recommended because this carbon steel is not corrosion resistant.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the dimensions accurate to spec?\u003c\/strong\u003e\u003cbr\u003eCustomers report generally accurate OD and wall thickness, though some have found the ID slightly smaller than expected, so verify fit for tight-tolerance parts.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48236904022235,"sku":"B000H9K3QA","price":111.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_fd8e1632-5139-4ceb-a59c-f208a000cecd.jpg?v=1770884066","url":"https:\/\/gearmusthave.com\/products\/a513-cold-roll-carbon-steel-round-tubing-2-1-2-in-od-durable-tube","provider":"GearMustHave","version":"1.0","type":"link"}