{"product_id":"304-a2-stainless-steel-round-plate-100-300mm","title":"304 A2 Stainless Steel Sheet Round Steel Plate Dia 100mm~300mm 1mm~3mm Thickness","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e304 A2 Stainless Steel Round Plates — Precision-Cut Discs for DIY \u0026amp; Fabrication\u003c\/h2\u003e\n\u003cp\u003eWhen a project demands a flat, corrosion-resistant disc that holds its shape under load, most hardware-store sheet offcuts simply don't deliver the dimensional accuracy or surface consistency that DIYers, welders, and light fabricators need. These 304 A2 stainless steel round plates are stocked in multiple diameters and thicknesses so you can match the exact spec without cutting, grinding, or wasting material.\u003c\/p\u003e\n\u003cp\u003eEach plate is produced from Grade 304 (A2) austenitic stainless steel — the same alloy used in food-processing equipment and architectural trim — and is available in diameters from Ø100 mm (~3.94 in) to Ø300 mm (~11.81 in) and thicknesses from 1 mm (~0.039 in) to 3 mm (~0.118 in). Edges are clean-cut and faces are mill-finished, ready for further machining, welding, or direct installation.\u003c\/p\u003e\n\u003cp\u003eTypical applications include custom base plates for furniture legs and table frames, backing flanges for pipe penetrations, decorative wall medallions, and blanks for CNC or lathe turning projects. Whether you're sourcing a stainless steel round disc for a DIY shelf bracket or a replacement flange plate for light industrial equipment, the range of sizes covers most common requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for welding, drilling, grinding, and CNC machining. Compatible with standard stainless steel fasteners (A2\/A4). Not recommended for applications requiring Grade 316 marine-grade corrosion resistance.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 304 Stainless Steel Round Plates\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧱\u003c\/span\u003e\n\u003cstrong\u003eGrade 304 (A2) Alloy\u003c\/strong\u003e\n\u003cp\u003eContains 18% chromium and 8% nickel for reliable oxidation resistance in indoor, outdoor, and mildly corrosive environments — without the cost of marine-grade 316.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\n\u003cstrong\u003eWide Size Range\u003c\/strong\u003e\n\u003cp\u003eDiameters from Ø100 mm to Ø300 mm and thicknesses from 1 mm to 3 mm let you select the exact blank size, reducing waste and secondary cutting time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n\u003cstrong\u003eClean-Cut Edges\u003c\/strong\u003e\n\u003cp\u003ePlates are cut to a circular profile with consistent edge geometry, making them ready for immediate use or further finishing without deburring the entire perimeter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n\u003cstrong\u003eWeldable \u0026amp; Machinable\u003c\/strong\u003e\n\u003cp\u003e304 stainless is fully compatible with TIG and MIG welding processes and can be drilled, tapped, or turned on a lathe using standard HSS or carbide tooling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\n\u003cstrong\u003eStructural Rigidity\u003c\/strong\u003e\n\u003cp\u003eEven the 1 mm plates maintain flatness across the disc face, while the 2–3 mm options provide load-bearing stiffness suitable for base plates and mounting flanges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n\u003cp\u003eAvailable in 1-piece or 2-piece packs so you can order exactly what your project requires — whether it's a single prototype or a small production run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Stainless Steel Round Plate\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Austenitic Stainless Steel (A2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRound \/ Disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003eØ100 mm – Ø300 mm (3.94 in – 11.81 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e1 mm – 3 mm (0.039 in – 0.118 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eMill finish (2B or equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChromium Content\u003c\/th\u003e\n\u003ctd\u003eTypically 17.5–19.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNickel Content\u003c\/th\u003e\n\u003ctd\u003eTypically 8–10.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003ctd\u003eTypically 515–720 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight per Piece\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right thickness for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor decorative or lightweight applications such as wall medallions or thin backing plates, 1–1.5 mm is typically sufficient. For structural uses like furniture base plates or mounting flanges that bear load, 2–3 mm provides the rigidity needed. If you're unsure, measure the thickness of the existing component you're replacing or consult a load table for your specific span and load.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these plates rust or corrode outdoors?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eGrade 304 stainless steel forms a passive chromium-oxide layer that resists rust in most outdoor environments. However, in coastal or high-chloride settings (salt spray, pool surrounds), Grade 316 is the recommended choice. For standard outdoor DIY use away from the coast, 304 performs reliably without surface treatment.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I weld these plates to mild steel or other stainless components?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. 304 stainless can be TIG or MIG welded to other 304\/316 stainless parts using ER308L filler wire. Welding to mild steel is possible but requires a compatible filler (e.g., ER309L) and may affect corrosion resistance at the weld zone. Always clean the weld area and passivate after welding for best results.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat diameter should I order if I need to machine it down to a specific size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eOrder the next size up from your finished dimension to allow for turning or grinding stock. For example, if your finished disc needs to be Ø95 mm, order the Ø100 mm plate and turn it down on a lathe. This ensures you have enough material to achieve a clean, concentric finished edge.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these plates compatible with standard A2 stainless fasteners?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Because the plates are Grade 304 (A2), they are fully compatible with A2 stainless bolts, screws, and nuts. Using matched-grade fasteners prevents galvanic corrosion at the joint. A4 (316) fasteners can also be used without compatibility issues.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I decide between the 1-piece and 2-piece pack options?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe 2-piece pack is available for the Ø100 mm diameter and offers a lower per-unit cost when you need a spare or are building symmetrical assemblies (e.g., two matching base pads). For larger diameters (Ø150 mm and above), only the 1-piece option is listed — order multiple quantities at checkout if you need more than one.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these plates be used as blanks for laser engraving or plasma cutting?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The mill-finish surface is suitable as a starting blank for fiber laser engraving and plasma or waterjet cutting. For laser engraving, the 1–1.5 mm plates are easiest to handle. For plasma cutting custom shapes from the disc, the 2–3 mm thickness gives better edge quality and reduces warping from heat input.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your thickness, diameter, and pack quantity above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right thickness for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For decorative or lightweight applications such as wall medallions or thin backing plates, 1–1.5 mm is typically sufficient. For structural uses like furniture base plates or mounting flanges that bear load, 2–3 mm provides the rigidity needed.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these plates rust or corrode outdoors?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Grade 304 stainless steel forms a passive chromium-oxide layer that resists rust in most outdoor environments. In coastal or high-chloride settings, Grade 316 is recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I weld these plates to mild steel or other stainless components?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. 304 stainless can be TIG or MIG welded to other 304\/316 stainless parts using ER308L filler wire. Welding to mild steel requires a compatible filler such as ER309L.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What diameter should I order if I need to machine it down to a specific size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Order the next size up from your finished dimension to allow for turning or grinding stock. For example, if your finished disc needs to be Ø95 mm, order the Ø100 mm plate and turn it down on a lathe.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these plates compatible with standard A2 stainless fasteners?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Because the plates are Grade 304 (A2), they are fully compatible with A2 stainless bolts, screws, and nuts. A4 (316) fasteners can also be used without compatibility issues.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I decide between the 1-piece and 2-piece pack options?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 2-piece pack is available for the Ø100 mm diameter and offers a lower per-unit cost when you need a spare or are building symmetrical assemblies. For larger diameters, order multiple quantities at checkout.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these plates be used as blanks for laser engraving or plasma cutting?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The mill-finish surface is suitable as a starting blank for fiber laser engraving and plasma or waterjet cutting. The 1–1.5 mm plates are easiest to handle for laser engraving.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1mm \/ Ø100mm \/ 2Pcs","offer_id":52378749075730,"sku":"FOB06695x1","price":37.82,"currency_code":"USD","in_stock":true},{"title":"1mm \/ Ø150mm \/ 1Pcs","offer_id":52378749108498,"sku":"FOB06696x1","price":37.82,"currency_code":"USD","in_stock":true},{"title":"1mm \/ Ø200mm \/ 1Pcs","offer_id":52378749141266,"sku":"FOB06697x1","price":60.14,"currency_code":"USD","in_stock":true},{"title":"1mm \/ Ø300mm \/ 1Pcs","offer_id":52378749174034,"sku":"FOB06698x1","price":122.67,"currency_code":"USD","in_stock":true},{"title":"1.5mm \/ Ø100mm \/ 2Pcs","offer_id":52378749206802,"sku":"FOB06699x1","price":48.05,"currency_code":"USD","in_stock":true},{"title":"1.5mm \/ Ø150mm \/ 1Pcs","offer_id":52378749239570,"sku":"FOB06700x1","price":56.2,"currency_code":"USD","in_stock":true},{"title":"1.5mm \/ Ø200mm \/ 1Pcs","offer_id":52378749272338,"sku":"FOB06701x1","price":85.37,"currency_code":"USD","in_stock":true},{"title":"2mm \/ Ø100mm \/ 1Pcs","offer_id":52378749305106,"sku":"FOB06703x1","price":34.8,"currency_code":"USD","in_stock":true},{"title":"2mm \/ Ø150mm \/ 1Pcs","offer_id":52378749337874,"sku":"FOB06704x1","price":66.07,"currency_code":"USD","in_stock":true},{"title":"2mm \/ Ø200mm \/ 1Pcs","offer_id":52378749370642,"sku":"FOB06705x1","price":110.58,"currency_code":"USD","in_stock":true},{"title":"2.5mm \/ Ø100mm \/ 1Pcs","offer_id":52378749403410,"sku":"FOB06706x1","price":40.84,"currency_code":"USD","in_stock":true},{"title":"2.5mm \/ Ø150mm \/ 1Pcs","offer_id":52378749436178,"sku":"FOB06707x1","price":80.19,"currency_code":"USD","in_stock":true},{"title":"2.5mm \/ Ø200mm \/ 1Pcs","offer_id":52378749468946,"sku":"FOB06708x1","price":134.64,"currency_code":"USD","in_stock":true},{"title":"3mm \/ Ø100mm \/ 1Pcs","offer_id":52378749501714,"sku":"FOB06709x1","price":48.05,"currency_code":"USD","in_stock":true},{"title":"3mm \/ Ø150mm \/ 1Pcs","offer_id":52378749534482,"sku":"FOB06710x1","price":94.42,"currency_code":"USD","in_stock":true},{"title":"3mm \/ Ø200mm \/ 1Pcs","offer_id":52378749567250,"sku":"FOB06711x1","price":161.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of3_bbaa9384-3cf4-40d2-90dc-42770b142876.jpg?v=1781676150","url":"https:\/\/homediyer.com\/products\/304-a2-stainless-steel-round-plate-100-300mm","provider":"HomeDIYer","version":"1.0","type":"link"}