{"product_id":"a513-cold-roll-carbon-steel-round-tubing-1-1-4in-od-durable-shaft","title":"A513 Cold Roll Carbon Steel Round Tubing 1-1\/4in OD - Durable Shaft","description":"\u003cp\u003eIn this review of the A513 cold roll carbon steel round tubing, the bottom line is simple: this piece of shaft stock is for metalworkers and fabricators who need strong, straight tubing for pins, shafts, and small structural tasks. Our review finds the tubing delivers on strength and dimensional consistency for most projects, while offering good value for the material. The tubing meets ASTM-A513 and is supplied in a 36in length with a 1-1\/4in outside diameter, so it arrives ready for cutting and machining into spindles, sprockets, or fuel tank fittings.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e A513 cold roll carbon steel provides high strength and rigidity, making it suitable for load-bearing parts and structural use.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eExact sizing:\u003c\/strong\u003e The 1-1\/4in outside diameter with a 0.625in inside diameter and 0.3125in wall gives predictable wall thickness for machining and interference fits.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e Supplied as a 36in length, it is long enough for multiple parts or larger projects without immediate rejoining.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCommon uses:\u003c\/strong\u003e Made from 1018-style carbon steel, it is appropriate for pins, rods, shafts, spindles, and sprockets that require solid mechanical properties.\u003c\/li\u003e\n \n \u003cli\u003e\n\u003cstrong\u003eStandard compliance:\u003c\/strong\u003e Meets ASTM-A513, which reassures buyers about the manufacturing process and baseline material properties.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is aimed at hobby machinists, small fabrication shops, and maintenance teams who need reliable carbon steel shaft stock that machines to common dimensions. It is especially useful when strength and rigidity are priorities, for example in drivetrain components or structural bracing.\u003c\/p\u003e\n\u003cp\u003ePeople who need exceptional weldability or the easiest possible machining should consider alternate low-carbon or alloy steels; A513 is slightly lower in machinability and weldability compared with some mild steels, so buyers with those priorities may want a different grade.\u003c\/p\u003e\n\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, suitable for load-bearing components and mechanical parts.\u003c\/li\u003e\n \u003cli\u003eMeets ASTM-A513, providing consistency from piece to piece for repeatable fabrication.\u003c\/li\u003e\n \u003cli\u003eConvenient 36in length and common OD\/ID sizes that match standard machining and fitting needs.\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 mild steels, requiring slightly different tooling or prep for welding.\u003c\/li\u003e\n \u003cli\u003eSome users report the inner diameter can be a little smaller than expected, which may affect tight tolerance fits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 type\u003c\/td\u003e\n\u003ctd\u003eA513 cold roll carbon steel (1018-style)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOutside diameter (OD)\u003c\/td\u003e\n\u003ctd\u003e1-1\/4in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eInside diameter (ID)\u003c\/td\u003e\n\u003ctd\u003e0.625in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003e0.3125in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e36in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe A513 cold roll tubing is a solid choice for machinists and fabricators who need strong, straight carbon steel shaft stock at a reasonable price. It is particularly good for pins, shafts, and spindles where rigidity matters; buyers should only be cautious if they need the easiest possible weldability or exact ID tolerances for press-fit applications.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing easy to weld?\u003c\/strong\u003e\u003cbr\u003eIt can be welded, but A513 has slightly lower weldability than softer mild steels, so proper prep and welding practice are recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I machine this to tight tolerances?\u003c\/strong\u003e\u003cbr\u003eYes, it machines well for many applications, but expect it to be a bit tougher than very low-carbon steels; plan tooling accordingly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the dimensions be exact for press fits?\u003c\/strong\u003e\u003cbr\u003eDimensions are generally accurate and the tubing meets ASTM-A513, but some customers report the ID can run slightly small, so measure before final assembly.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48195181740251,"sku":"B000H9P62Q","price":53.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51RCqvxR91L._AC_SL1000_b478cd7b-b59d-4bb2-884a-80f741dce48f.jpg?v=1770260812","url":"https:\/\/gearmusthave.com\/products\/a513-cold-roll-carbon-steel-round-tubing-1-1-4in-od-durable-shaft","provider":"GearMustHave","version":"1.0","type":"link"}