{"product_id":"onlinemetals-a500-a513-carbon-steel-rectangular-tubing-solid","title":"OnlineMetals A500\/A513 Carbon Steel Rectangular Tubing - Solid","description":"\u003cp\u003eIn this review the OnlineMetals A500\/A513 carbon steel rectangular tubing is examined for fabricators, hobbyists, and builders who need a reliable structural section. The bottom line: this 2 in x 4 in, 0.1875 in wall, 36 in length tube delivers the kind of strength and weldability expected from A500\/A513 steel at a low cost, making it an excellent pick when straight, unpolished hot rolled sections are required. For anyone building frames, supports, or fittings where predictable performance and size matter, this tubing is a practical, value-oriented option.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA500\/A513 steel:\u003c\/strong\u003e Provides good strength and predictable mechanical performance for structural and fabrication tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 in x 4 in profile:\u003c\/strong\u003e Offers a rectangular footprint that works well for frames, rails, and supports where one direction needs greater load capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.1875 in wall thickness:\u003c\/strong\u003e Balances weight and rigidity for many light to medium structural uses without excessive material cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e36 in length:\u003c\/strong\u003e Ships as a manageable one-piece section that fits into workshop layouts and reduces on-site splicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot rolled, mill finish:\u003c\/strong\u003e Arrives with a work-ready surface that welds and paints well, keeping prep time to a minimum for many projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets ASTM A513:\u003c\/strong\u003e Ensures industry-standard dimensions and material behavior for consistent results in assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe tubing is aimed at steel fabricators, contractors, and DIY metalworkers who need an economical structural tube that is easy to weld and integrate into frameworks, railings, or trailer components. Its size and wall thickness suit furniture frames, small structural supports, and automotive or appliance repair where rectangular sections are preferred.\u003c\/p\u003e\n\u003cp\u003eThose seeking a finished appearance right out of the box or precision cold-drawn surface finishes should look elsewhere, since this is hot rolled with a mill finish intended for functionality rather than decorative use.\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 combination of strength and weldability for structural and fabrication work.\u003c\/li\u003e\n\u003cli\u003eWell sized at 2 in x 4 in with 0.1875 in wall for versatile light-to-medium duty applications.\u003c\/li\u003e\n\u003cli\u003eCustomers report clean, rust-free arrival and solid welded quality, offering dependable 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\u003eMill finish and hot rolled surface are not polished or decorative, which may require additional finishing for visible projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial Standard\u003c\/td\u003e\n\u003ctd\u003eA500\/A513 (meets ASTM A513)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eUnpolished (mill) finish, hot rolled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e4 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\u003e36 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe OnlineMetals A500\/A513 rectangular tubing is a solid, cost-effective choice for anyone who needs structurally capable steel that welds and machines predictably. It is especially good value for fabricators and hobbyists who prioritize strength and fit over surface finish, and it delivers reliable performance for frames, supports, and repair work without unnecessary expense.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing ready to weld?\u003c\/strong\u003e\u003cbr\u003eYes, the hot rolled mill finish arrives ready for welding and general fabrication; light cleaning may be desired depending on shop practices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the size exact for shop cutting and fit-up?\u003c\/strong\u003e\u003cbr\u003eThe product meets A500\/A513 dimensional expectations for consistent fit-up, making it suitable for straightforward cutting and assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it resist rust in outdoor use?\u003c\/strong\u003e\u003cbr\u003eAs hot rolled carbon steel it is not stainless; it will need paint or coating for long-term outdoor corrosion protection.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48680659058907,"sku":"B087VTG7LS","price":54.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41K96xhaPtL._AC_SL1000_3e0b2caa-6866-4d1f-9f6a-0f0e6f5b6030.jpg?v=1778628178","url":"https:\/\/gearmusthave.com\/products\/onlinemetals-a500-a513-carbon-steel-rectangular-tubing-solid","provider":"GearMustHave","version":"1.0","type":"link"}