{"product_id":"304-stainless-steel-rectangular-bar-1-4-in-x-2-1-2-in-x-48-in-solid","title":"304 Stainless Steel Rectangular Bar 1\/4 in x 2-1\/2 in x 48 in - Solid","description":"\u003cp\u003eIn this review the 304 Stainless Steel Rectangular Bar is evaluated for fabricators, hobbyists, and engineers who need a reliable, corrosion-resistant flat bar for structural or aesthetic work. The bottom line: this bar delivers the familiar strength and general corrosion resistance of \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e in a convenient 1\/4 in thickness and 2-1\/2 in width, making it a straightforward choice when a standard, unpolished flat bar is required. Our review focuses on dimensional accuracy, finish, and applicable uses based on the mill (unpolished) condition and the supplied certifications.\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 good corrosion resistance suitable for many general-purpose applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e The 1\/4 in thickness and 2-1\/2 in width at 48 in length supply a predictable, machineable workpiece for cutting, drilling, or bending.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e The unpolished mill finish is useful when a raw surface is acceptable or when further finishing will be applied later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Meets multiple specifications (including ASTM A276) that support use in regulated projects where traceable material standards matter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatility:\u003c\/strong\u003e Commonly used across industries such as food processing, architectural trim, pressure containers, and cryogenic applications where 304 alloy properties are known and trusted.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis rectangular bar is best for metalworkers, shop fabricators, and maintenance crews who need a standard, ready-to-machine 304 stainless flat bar for brackets, trim, or structural components. It suits projects where a mill finish is acceptable or where subsequent finishing processes are planned.\u003c\/p\u003e\u003cp\u003eThose who require a highly polished cosmetic surface or precise custom lengths should look elsewhere; the bar is supplied in a mill finish and customers have reported mixed experience with exact length tolerance, so precision-critical parts or finished-display pieces may need additional processing or tighter-tolerance material.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReliable corrosion resistance and strength from the widely used \u003cstrong\u003e304 stainless steel alloy\u003c\/strong\u003e for diverse applications.\u003c\/li\u003e\n\u003cli\u003eStandard nominal dimensions (1\/4 in x 2-1\/2 in x 48 in) that simplify planning and material layout.\u003c\/li\u003e\n\u003cli\u003eConforms to common industry specifications such as ASTM A276, which supports traceability for industrial projects.\u003c\/li\u003e\n\u003cli\u003eMill finish is practical for parts that will be welded, machined, or further finished.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFinish is unpolished, so additional finishing is required for cosmetic applications.\u003c\/li\u003e\n\u003cli\u003eSome customers report mixed results on final length and finish consistency, so verify dimensions if tight tolerance is required.\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\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e48 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eUnpolished (mill) finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat treatment\u003c\/td\u003e\n\u003ctd\u003eAnnealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eMeets AMS-QQ-S-763, AMS-5639, AMS-5647, ASTM A276, ASTM A479, ASTM F899\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 304 Stainless Steel Rectangular Bar is a dependable material choice for general fabrication, architectural trim, and industrial uses where the alloy's corrosion resistance and strength are needed. It represents good value when a mill finish and standard dimensions are acceptable, though buyers needing precise cosmetic finish or exact length tolerances should plan for additional processing or select material with tighter specs.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this bar ready for welding?\u003c\/strong\u003e\u003cbr\u003eYes, 304 stainless steel in an annealed condition and mill finish is commonly welded, but appropriate filler and technique for 304 should be used.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the bar be polished to a mirror finish?\u003c\/strong\u003e\u003cbr\u003eYes, the unpolished mill finish can be ground and polished, but that requires additional time and equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it meet industrial standards?\u003c\/strong\u003e\u003cbr\u003eYes; the material is listed as meeting ASTM A276 and several AMS specifications relevant to industrial use.\u003c\/p\u003e","brand":"Online Metals","offers":[{"title":"Default Title","offer_id":48184859590875,"sku":"B000H9LHLK","price":64.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51JYQNj_a-L._SL1231_b3841dab-aebe-46d8-a052-50a7c21753b9.jpg?v=1769696764","url":"https:\/\/gearmusthave.com\/products\/304-stainless-steel-rectangular-bar-1-4-in-x-2-1-2-in-x-48-in-solid","provider":"GearMustHave","version":"1.0","type":"link"}