{"product_id":"carbon-steel-square-tubing-1-25in-x-0-12in-x-48in-structural","title":"Carbon Steel Square Tubing 1.25in x 0.12in x 48in - Structural","description":"\u003cp\u003eOur review of this carbon steel square tubing finds it best for builders, fabricators, and hobbyists who need a reliable 4 ft stick of structural steel that is ready to modify. The single biggest reason to consider it is simple: it combines familiar A36-grade carbon steel strength with an uncoated, work-ready finish so users can weld, drill, or cut without removing factory coatings. For anyone assembling frames, machine supports, or models, this tube delivers predictable dimensions and handling that save time in shop layout and mockups.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-strength carbon steel:\u003c\/strong\u003e The A36-style material provides consistent structural integrity for frameworks and load-bearing supports in small to medium projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise dimensions:\u003c\/strong\u003e The 1.25in height and 0.12in wall thickness give a predictable stiffness-to-weight balance useful for chassis and brackets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48in length:\u003c\/strong\u003e A convenient 4 ft length reduces scrap for many shop applications while remaining easy to store and transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady for modification:\u003c\/strong\u003e The tube arrives uncoated, making it straightforward to weld, drill, or cut to match custom parts or fixtures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable and recyclable:\u003c\/strong\u003e Engineered to resist routine wear and suitable for recycling, it supports longer service life and sustainable material handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultipurpose compatibility:\u003c\/strong\u003e Works with common tube connectors and fittings, expanding use across machine fabrication, model builds, and separator systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is aimed at metalworkers and engineers who need a predictable piece of structural steel for frames, machine supports, or architectural elements. Its ready-to-modify finish and common dimensions make it especially useful for small fabrication shops, makers building rigs or jigs, and hobbyists constructing models or fixtures.\u003c\/p\u003e\n\u003cp\u003eThose who require a pre-finished, stainless, or plated surface for exterior exposure without post-processing should look elsewhere, since this product ships uncoated and may need surface protection for long-term corrosion resistance in harsh environments.\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\u003eSolid build quality and consistent sizing that customers praise for fit and function.\u003c\/li\u003e\n\u003cli\u003eGood value for a 4 ft length of A36-style carbon steel for structural uses.\u003c\/li\u003e\n\u003cli\u003eUncoated finish simplifies welding and machining without removing paint or plating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMixed reports on rust resistance mean users should plan for protective coating if exposed to moisture.\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\u003eCarbon steel (A36\/A513 style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eSquare tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e1.25in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003e0.12in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e48in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHot rolled, uncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor fabricators and makers who need a dependable, modifiable length of carbon steel for frames and machine parts, this 1.25in x 0.12in x 48in square tubing is a practical choice that balances strength, value, and ease of use. Buyers should plan surface protection if the application requires long-term corrosion resistance, but for shop work and structural mockups it offers clear utility and predictable sizing.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this tubing be welded?\u003c\/strong\u003e\u003cbr\u003eYes. The uncoated hot-rolled carbon steel is straightforward to weld with common MIG or stick procedures after proper joint preparation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the tubing ready for outdoor use?\u003c\/strong\u003e\u003cbr\u003eIt ships uncoated; for extended outdoor exposure a rust-protective paint or galvanizing is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit standard tube connectors?\u003c\/strong\u003e\u003cbr\u003eYes. The square profile and common dimensions allow compatibility with many tube connectors and fittings used in machine and frame assembly.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48188375433435,"sku":"B000H9NWM2","price":58.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51mvzNj-mjL._AC_SL1000_b6ba9990-b2e0-42db-8dab-779502f2edda.jpg?v=1769655757","url":"https:\/\/gearmusthave.com\/products\/carbon-steel-square-tubing-1-25in-x-0-12in-x-48in-structural","provider":"GearMustHave","version":"1.0","type":"link"}