{"product_id":"304-stainless-steel-plate-sheet-polished-solid-metal-board","title":"304 Stainless Steel Plate Sheet\/Polished Plate\/Solid Metal Board Thick 0.6mm~5mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e304 Stainless Steel Plate Sheet — Polished Solid Metal Board for Fabrication \u0026amp; DIY Repair\u003c\/h2\u003e\n\u003cp\u003eWhen a project demands a flat, rigid metal surface that holds its shape under load, finding the right thickness and size without ordering a full industrial sheet is a real challenge. Whether you are a hobbyist machinist, a workshop fabricator, or a home DIYer tackling structural repairs, this 304 stainless steel plate sheet gives you the exact dimensions you need without excess waste.\u003c\/p\u003e\n\u003cp\u003eEach piece is a solid 304-grade stainless steel board, available in widths from 100 mm (approx. 3.94 in) to 300 mm (approx. 11.81 in) and lengths from 100 mm to 300 mm (approx. 3.94–11.81 in). Thickness options span 0.6 mm through 5 mm (approx. 0.024–0.197 in), covering everything from thin shim stock to structural plate. The surface carries a polished finish that reduces surface oxidation and makes cleaning straightforward.\u003c\/p\u003e\n\u003cp\u003eTypical applications include custom bracket fabrication, machine base plates, protective wear plates in enclosures, DIY kitchen backsplash panels, and corrosion-resistant repair patches for outdoor equipment. Builders sourcing a \u003cstrong\u003estainless steel flat plate for welding projects\u003c\/strong\u003e or engineers needing a \u003cstrong\u003e304 SS solid metal board for precision fixtures\u003c\/strong\u003e will find the variant matrix covers the most common cut sizes.\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 Note:\u003c\/strong\u003e These plates are undrilled solid stock. They are compatible with standard metalworking tools including angle grinders, drill presses, and TIG\/MIG welders rated for 304 stainless. Confirm your required size and thickness using the variant selectors above before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 304 Stainless Steel Plate Sheets\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003e304 Stainless Steel Grade\u003c\/strong\u003e — Contains 18% chromium and 8% nickel for reliable corrosion resistance in both indoor and outdoor environments, including exposure to moisture and mild chemicals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cstrong\u003eWide Size Matrix\u003c\/strong\u003e — Five width × length combinations (100×100 mm up to 300×300 mm) paired with nine thickness options (0.6 mm–5 mm) let you select the exact stock size your project requires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✨\u003c\/span\u003e\u003cstrong\u003ePolished Surface Finish\u003c\/strong\u003e — The smooth, polished face reduces surface roughness, making the plate easier to clean, weld, and coat compared to mill-scale finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\u003cstrong\u003eSolid Full-Thickness Stock\u003c\/strong\u003e — No hollow core or laminate construction. Each board is solid through its entire cross-section, suitable for load-bearing brackets, shims, and structural patches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cstrong\u003eMachinable \u0026amp; Weldable\u003c\/strong\u003e — 304 SS cuts cleanly with carbide tooling and accepts TIG and MIG welding with ER308L filler. Suitable for secondary operations such as drilling, bending, and grinding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eSingle-Piece Ordering\u003c\/strong\u003e — Each variant is sold per piece, so you order only what you need. Ideal for prototyping, one-off repairs, and small-batch fabrication without minimum order quantities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Stainless Steel Plate Sheet\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel (18-8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth Options\u003c\/th\u003e\n\u003ctd\u003e100 mm, 200 mm, 300 mm (approx. 3.94 in, 7.87 in, 11.81 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength Options\u003c\/th\u003e\n\u003ctd\u003e100 mm, 200 mm, 300 mm (approx. 3.94 in, 7.87 in, 11.81 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Options\u003c\/th\u003e\n\u003ctd\u003e0.6 mm, 0.8 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003ctd\u003eFlat solid plate \/ sheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHoles \/ Cutouts\u003c\/th\u003e\n\u003ctd\u003eNone (undrilled solid stock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile Strength (typical)\u003c\/th\u003e\n\u003ctd\u003e515 MPa (74,700 psi) — 304 SS standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eYield Strength (typical)\u003c\/th\u003e\n\u003ctd\u003e205 MPa (29,700 psi) — 304 SS standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eTypically 70 HRB (304 SS annealed)\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 light shims, gaskets, or decorative panels, 0.6–1 mm is typically sufficient. For structural brackets, machine bases, or wear plates that must resist bending under load, 2–5 mm is the more appropriate range. If you are unsure, calculate the expected load and consult a basic beam-deflection formula, or contact us with your application details.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs 304 stainless steel strong enough for load-bearing applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e304 stainless steel has a tensile strength of approximately 515 MPa and a yield strength of around 205 MPa. For most DIY brackets, enclosure panels, and light structural repairs, this is more than adequate. For heavy structural or high-temperature applications above 870 °C (1600 °F), consider 316 or 310 grade instead.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this plate rust or corrode outdoors?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e304 stainless steel resists rust in most outdoor environments due to its chromium oxide passive layer. However, in coastal or high-chloride environments (salt spray, de-icing salts), surface staining or pitting can occur over time. For marine or heavily chloride-exposed applications, 316 stainless steel offers better chloride resistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I weld or cut this plate with standard tools?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. 304 SS welds well with TIG or MIG processes using ER308L filler wire. It can be cut with an angle grinder fitted with a stainless-rated cutting disc, a plasma cutter, or a waterjet. Avoid using carbon steel tools without cleaning them first, as embedded iron particles can cause surface rust spots.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat size should I order if I need a custom dimension?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eOrder the next size up from your required dimension and trim to fit using an angle grinder or metal shear. For example, if you need a 180×180 mm piece, order the 200×200 mm variant and cut down. This approach avoids gaps caused by under-sizing.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the polished finish on both sides?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe polished finish is applied to the face surface. The reverse side and edges may show a mill or cut finish depending on the specific piece. If a mirror finish on both faces is required, please contact us to confirm availability before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is the plate packaged to prevent scratching during transit?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePlates are wrapped in protective film or interleaved paper to prevent surface contact scratches during handling and transit. If you receive a piece with transit damage, please photograph it and contact us within 48 hours of delivery.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Size and Thickness 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 light shims, gaskets, or decorative panels, 0.6–1 mm is typically sufficient. For structural brackets, machine bases, or wear plates that must resist bending under load, 2–5 mm is the more appropriate range.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is 304 stainless steel strong enough for load-bearing applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"304 stainless steel has a tensile strength of approximately 515 MPa and a yield strength of around 205 MPa. For most DIY brackets, enclosure panels, and light structural repairs, this is more than adequate.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this plate rust or corrode outdoors?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"304 stainless steel resists rust in most outdoor environments. In coastal or high-chloride environments, surface staining or pitting can occur. 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Contact us to confirm if a mirror finish on both faces is required.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How is the plate packaged to prevent scratching during transit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Plates are wrapped in protective film or interleaved paper to prevent surface contact scratches during handling and transit.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"100mm*100mm \/ 0.6mm \/ 1 Pcs","offer_id":52379035926802,"sku":"LRPGANGB0064x1","price":7.11,"currency_code":"USD","in_stock":true},{"title":"200mm*100mm \/ 0.6mm \/ 1 Pcs","offer_id":52379035959570,"sku":"LRPGANGB0065x1","price":11.78,"currency_code":"USD","in_stock":true},{"title":"200mm*200mm \/ 0.6mm \/ 1 Pcs","offer_id":52379035992338,"sku":"LRPGANGB0066x1","price":19.65,"currency_code":"USD","in_stock":true},{"title":"300mm*200mm \/ 0.6mm \/ 1 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