{"product_id":"onlinemetals-a500-a513-carbon-steel-rectangular-tubing-structural","title":"OnlineMetals A500\/A513 Carbon Steel Rectangular Tubing - Structural","description":"\u003cp\u003eIn this review of the OnlineMetals A500\/A513 carbon steel rectangular tubing, the bottom line is simple: this is a sturdy, no-frills structural tube for projects that need reliable strength and weldability without a premium finish. The reviewer finds it best suited to fabricators, metalworkers, and builders who need consistent dimensions and a hot rolled, mill finish for welding or structural use. Its biggest selling point is the familiar A500\/A513 chemical and mechanical properties that make it common in North America for bridges, buildings, and appliance frames.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA500\/A513 steel:\u003c\/strong\u003e Offers good strength and weldability, making it a practical choice for structural and fabrication work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e The 2' in height by 4' in width profile with a 0.1875' in wall provides predictable load-bearing capacity for light to medium structural tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e72' in length:\u003c\/strong\u003e Long stock reduces the number of welded joints and is useful for longer runs in framing and construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot rolled, mill finish:\u003c\/strong\u003e Arrives unpolished which is appropriate for welding, cutting, and painting rather than decorative use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets ASTM-A513:\u003c\/strong\u003e Conforms to a common industry standard, giving confidence for engineering and code-driven projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe product is aimed at contractors, metalworkers, and hobbyist fabricators who need economical, structurally rated rectangular tubing for frames, supports, and general fabrication. Its mill finish and hot rolled condition make it suited to welding and surface preparation rather than exposed architectural applications.\u003c\/p\u003e\n\u003cp\u003eThose seeking a polished or decorative appearance, or specialty alloy properties (stainless or galvanized surface protection), should look elsewhere. If corrosion resistance without painting is required, galvanized or stainless tubing would be a better fit.\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\u003eReliable structural performance thanks to the A500\/A513 specification and widely understood material behavior.\u003c\/li\u003e\n\u003cli\u003eGood weldability and straightforward fabrication properties for common shop processes.\u003c\/li\u003e\n\u003cli\u003eCustomers report the tubing arrives in good condition, clean and free of rust, and sized accurately for projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe mill finish is unpolished and hot rolled, so it requires surface treatment or painting for corrosion protection or aesthetic use.\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\u003eA500\/A513 carbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eUnpolished (mill), 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\u003e72 in\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\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe OnlineMetals A500\/A513 rectangular tubing is a practical, value-oriented choice for anyone who needs structurally rated steel for welding and fabrication. It delivers predictable strength and good welded quality at a low cost, though buyers should plan to finish or protect the mill surface if corrosion resistance or appearance matters. Overall, it represents solid value for builders and fabricators.\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 and A500\/A513 material make it suitable for standard welding processes after normal surface cleaning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come primed or galvanized?\u003c\/strong\u003e\u003cbr\u003eNo. The product is unpolished mill finish and will require painting or coating for long-term corrosion protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the size accurate for structural use?\u003c\/strong\u003e\u003cbr\u003eCustomers report accurate dimensions and good welded quality, and the tubing meets ASTM-A513, supporting its use in structural applications.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48649657745627,"sku":"B087VRG44C","price":103.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41K96xhaPtL._AC_SL1000_a5ef632a-5206-4cf0-974f-619918dbd5ec.jpg?v=1778596308","url":"https:\/\/gearmusthave.com\/products\/onlinemetals-a500-a513-carbon-steel-rectangular-tubing-structural","provider":"GearMustHave","version":"1.0","type":"link"}