{"product_id":"304-stainless-steel-round-bar-2-25in-x-12in-mill-finish","title":"304 Stainless Steel Round Bar 2.25in x 12in - Mill Finish","description":"\u003cp\u003eIn this review of the 304 Stainless Steel Round Bar, the bottom line is simple: this is a reliable, work-ready stainless rod for fabricators and hobbyists who need corrosion resistance and dimensional accuracy. The reviewer found the rod best suited to projects that demand a straight, sturdy shaft and predictable machining behavior thanks to its annealed, mill finish. Customers and the reviewer highlight its consistent steel quality and durability, making it a smart choice when a standard, certified 304 stainless alloy is required.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 stainless steel provides high strength and reliable corrosion resistance for a wide range of environments and applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e The 2.25in diameter and 12in length give a substantial workpiece that is suitable for turning, machining, or structural uses without immediate need for joining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Annealed, unpolished mill finish offers easier machining and forming while keeping surface preparation simple for downstream finishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Meets AMS-QQ-S-763, AMS-5639, AMS-5647, ASTM-A276, and ASTM-A479, so it fits regulated or spec-driven builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatility:\u003c\/strong\u003e Commonly used across aerospace, food and beverage, cryogenic, and architectural projects, providing a single alloy choice for many industries.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis stainless round bar is best for machinists, metalworkers, and engineers who need a predictable, certified 304 rod for parts, shafts, pins, or trim. Its straightness and sturdy construction work well for precision turning and functional components like knife scale pins or pressure container parts.\u003c\/p\u003e\u003cp\u003eThose who need a polished decorative finish straight from the supplier or alloys with higher corrosion resistance than 304 (for very chloride-heavy marine environments) should look elsewhere or plan to finish the surface after machining.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh material quality and corrosion resistance that customers consistently praise for durability.\u003c\/li\u003e\n\u003cli\u003eDimensionally accurate and straight, making it reliable for precision machining and assemblies.\u003c\/li\u003e\n\u003cli\u003eAnnealed mill finish simplifies machining and forming without unpredictable hardness.\u003c\/li\u003e\n\u003cli\u003eMeets multiple aerospace and ASTM specifications for regulated applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMill finish is unpolished, so additional finishing is required for decorative uses.\u003c\/li\u003e\n\u003cli\u003e304 stainless is not the best choice for highly chloride-rich marine conditions compared with higher-alloy grades.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlloy\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e2.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e12 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eUnpolished (mill) finish, annealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eAnnealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eAMS-QQ-S-763, AMS-5639, AMS-5647, ASTM-A276, ASTM-A479\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eFor anyone needing a straight, certified piece of 304 stainless for machining, structural parts, or regulated applications, this 2.25in x 12in round bar is a practical and cost-effective choice. Its combination of \u003cstrong\u003esteel quality\u003c\/strong\u003e, accurate dimensions, and annealed condition makes it good value for most industrial and hobby uses, provided the buyer is prepared to apply any final surface finishing themselves.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this rod ready for machining?\u003c\/strong\u003e\u003cbr\u003eYes. The bar is annealed and in a mill finish, which machine shops find easier to cut and form.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it meet industry specifications?\u003c\/strong\u003e\u003cbr\u003eYes. It meets AMS-QQ-S-763, AMS-5639, AMS-5647, ASTM-A276, and ASTM-A479 specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the surface polished?\u003c\/strong\u003e\u003cbr\u003eNo. The product is unpolished mill finish and will require additional finishing if a decorative surface is needed.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48236453036251,"sku":"B000H9MTLC","price":74.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61r6iPAx6zL._AC_SL1309_5f1f7bf5-ee7c-4aa8-be14-0fccea6ad1e1.jpg?v=1770662272","url":"https:\/\/gearmusthave.com\/products\/304-stainless-steel-round-bar-2-25in-x-12in-mill-finish","provider":"GearMustHave","version":"1.0","type":"link"}