{"product_id":"stainless-steel-sheet-14mm-thick-grade-304-a2-bright-polish","title":"Stainless Steel Sheet Bright Polish 14mm Thick Many Size Grade A2 304 L50-450mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e14mm Stainless Steel Sheet Grade 304 A2 — Bright Polish Finish for Structural \u0026amp; Fabrication Use\u003c\/h2\u003e\n\u003cp\u003eWhen a project demands a flat steel surface that holds up to load, moisture, and repeated contact without corroding or warping, a 14mm stainless steel sheet in Grade 304 A2 is the go-to choice for engineers, fabricators, metalworkers, and serious DIYers. Standard sheet stock at this thickness is often too thin for heavy-duty brackets, base plates, and structural pads — this range fills that gap with a solid, mirror-bright surface ready to cut, drill, or weld.\u003c\/p\u003e\n\u003cp\u003eEach sheet is cut from Grade 304 (A2) austenitic stainless steel with a bright polished surface finish. The thickness is a consistent 14mm (~0.551 in) across all sizes. Available dimensions range from 50mm × 50mm (~2\" × 2\") up to 450mm × 450mm (~17.7\" × 17.7\"), covering both small precision blanks and larger structural plates. Sizes are offered in rectangular and square formats to suit varied layout requirements.\u003c\/p\u003e\n\u003cp\u003eTypical applications include heavy-duty machine base plates and equipment feet, load-bearing bracket blanks for industrial racking and shelving, marine and outdoor structural pads where corrosion resistance is non-negotiable, and custom fabrication projects requiring a flat, machinable stainless blank. The bright polish surface also makes these sheets suitable for architectural accent panels and visible structural elements where appearance matters alongside strength.\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 sheets are compatible with standard stainless steel fasteners (A2\/A4 grade bolts, screws, and rivets). Suitable for welding with 308L or 316L filler wire. Not recommended for applications requiring magnetic permeability.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 14mm Stainless Steel Sheets\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔬\u003c\/span\u003e\u003cstrong\u003eGrade 304 A2 Austenitic Alloy\u003c\/strong\u003e — Contains 18% chromium and 8% nickel for reliable corrosion resistance in wet, humid, and mildly acidic environments without surface treatment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✨\u003c\/span\u003e\u003cstrong\u003eBright Polished Surface Finish\u003c\/strong\u003e — Mirror-bright finish reduces surface roughness, making the sheet easier to clean, inspect for defects, and use in visible architectural or food-adjacent applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cstrong\u003eConsistent 14mm Thickness\u003c\/strong\u003e — At 14mm (~0.551 in), these plates provide substantial rigidity and load-bearing capacity suitable for base plates, pads, and structural inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🗂️\u003c\/span\u003e\u003cstrong\u003e13 Size Options from 50mm to 450mm\u003c\/strong\u003e — From compact 50×50mm blanks to large 450×450mm plates, select the exact footprint you need without paying for excess material or cutting waste.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cstrong\u003eMachinable \u0026amp; Weldable\u003c\/strong\u003e — Grade 304 machines cleanly with carbide tooling and welds with standard austenitic filler wire, making these sheets straightforward to integrate into fabricated assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌊\u003c\/span\u003e\u003cstrong\u003eCorrosion-Resistant for Demanding Environments\u003c\/strong\u003e — The passive oxide layer on 304 stainless resists rust in marine-adjacent, outdoor, and high-humidity settings, reducing long-term maintenance requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — 14mm Stainless Steel Sheet\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial Grade\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel (A2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAlloy Composition\u003c\/th\u003e\n\u003ctd\u003e18% Chromium, 8% Nickel (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e14mm (0.551 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes (L × W)\u003c\/th\u003e\n\u003ctd\u003e50×50mm up to 450×450mm — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eBright Polish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003ctd\u003eTypically 515–720 MPa (Grade 304)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eYield Strength\u003c\/th\u003e\n\u003ctd\u003eTypically ≥205 MPa (Grade 304)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eTypically ≤92 HRB (Grade 304 annealed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnetic Properties\u003c\/th\u003e\n\u003ctd\u003eNon-magnetic (austenitic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeldability\u003c\/th\u003e\n\u003ctd\u003eGood — compatible with 308L \/ 316L filler wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMachinability\u003c\/th\u003e\n\u003ctd\u003eSuitable with carbide tooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eExcellent in atmospheric, freshwater, and mild chemical environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\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 (varies by size)\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\u003eWhat is the difference between Grade 304 and Grade 316 stainless steel for this thickness?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eGrade 304 (A2) contains 18% chromium and 8% nickel, offering solid corrosion resistance for most indoor, outdoor, and mildly marine environments. Grade 316 adds 2–3% molybdenum, which improves resistance to chloride pitting — relevant for direct saltwater immersion or chlorinated chemical exposure. For most structural, fabrication, and architectural applications, 304 at 14mm thickness performs reliably without the added cost of 316.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong is a 14mm stainless steel sheet — can it be used as a structural base plate?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. At 14mm, these sheets have substantial rigidity and load-bearing capacity. Grade 304 stainless has a tensile strength of typically 515–720 MPa and a yield strength of ≥205 MPa. For base plates, equipment feet, and structural pads, 14mm provides enough thickness to distribute point loads and resist bending under typical industrial and fabrication loads. Always verify load calculations with a qualified engineer for safety-critical applications.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the bright polish finish scratch easily during fabrication or installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBright polished stainless is more susceptible to surface scratches than a brushed or mill finish during handling and fabrication. It is advisable to keep protective film or masking on the surface until final installation, use non-abrasive clamps and fixtures, and avoid dragging the sheet across rough surfaces. For structural applications where appearance is secondary, minor surface marks do not affect mechanical performance.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I weld these 14mm stainless steel sheets, and what filler wire should I use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eGrade 304 stainless steel is weldable using TIG, MIG, or stick welding processes. The recommended filler wire is 308L for joining 304 to 304, or 316L if joining to 316 components. At 14mm thickness, adequate preheat management and multi-pass welding technique are recommended to avoid distortion and sensitization. Post-weld passivation or pickling helps restore the corrosion-resistant oxide layer in the heat-affected zone.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the footprint of your application — the area that needs to be covered, supported, or reinforced. Add a small margin (typically 5–10mm per side) if you plan to drill, cut, or machine the edges. Available sizes range from 50×50mm up to 450×450mm in both square and rectangular formats. If your required size falls between two options, select the next size up and trim to fit. For custom sizes outside this range, contact us to confirm availability.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Grade 304 stainless steel suitable for outdoor and marine-adjacent use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eGrade 304 performs well in outdoor atmospheric conditions, freshwater environments, and coastal areas with indirect salt air exposure. It is not recommended for direct, prolonged saltwater immersion or environments with concentrated chloride solutions — Grade 316 is more appropriate for those conditions. For outdoor structural pads, brackets, and architectural elements in typical coastal or urban environments, 304 at 14mm provides durable, low-maintenance performance.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these sheets be cut or drilled to a custom shape after purchase?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Grade 304 stainless steel at 14mm can be cut using an angle grinder with a stainless-rated cutting disc, a cold saw, or a plasma\/laser cutter for cleaner edges. Drilling requires sharp HSS-Co (cobalt) or carbide drill bits with cutting fluid to manage heat and work-hardening. Avoid using standard carbon steel tools without lubrication, as 304 work-hardens quickly and will dull tooling prematurely.\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 (Length × Width × 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\": \"What is the difference between Grade 304 and Grade 316 stainless steel for this thickness?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Grade 304 (A2) contains 18% chromium and 8% nickel, offering solid corrosion resistance for most indoor, outdoor, and mildly marine environments. Grade 316 adds 2–3% molybdenum for improved chloride resistance. For most structural and fabrication applications, 304 at 14mm performs reliably.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is a 14mm stainless steel sheet — can it be used as a structural base plate?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Grade 304 stainless has tensile strength of typically 515–720 MPa and yield strength of ≥205 MPa. At 14mm, these sheets provide substantial rigidity for base plates, equipment feet, and structural pads.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will the bright polish finish scratch easily during fabrication or installation?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Bright polished stainless is more susceptible to surface scratches than brushed finishes during handling. Keep protective film on until final installation and use non-abrasive fixtures. Minor surface marks do not affect mechanical performance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I weld these 14mm stainless steel sheets, and what filler wire should I use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Grade 304 is weldable via TIG, MIG, or stick welding. Use 308L filler wire for 304-to-304 joints. At 14mm, multi-pass technique is recommended. Post-weld passivation restores the corrosion-resistant oxide layer.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right size for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure your application footprint and add 5–10mm margin per side for machining. Sizes range from 50×50mm to 450×450mm. Select the next size up if your required size falls between options and trim to fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is Grade 304 stainless steel suitable for outdoor and marine-adjacent use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Grade 304 performs well outdoors and in coastal areas with indirect salt air. It is not recommended for direct saltwater immersion — use Grade 316 for those conditions. For typical outdoor structural applications, 304 at 14mm provides durable, low-maintenance performance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these sheets be cut or drilled to a custom shape after purchase?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Cut with an angle grinder (stainless disc), cold saw, or plasma\/laser cutter. Drill with HSS-Co cobalt or carbide bits and cutting fluid. Avoid dry cutting with carbon steel tools as 304 work-hardens quickly.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"50mm X 50mm X 14mm \/ 1","offer_id":52379020820754,"sku":"WWLFABGQJDWW185x1","price":33.62,"currency_code":"USD","in_stock":true},{"title":"100mm X 50mm X 14mm \/ 1","offer_id":52379020853522,"sku":"WWLFABGQJDWW186x1","price":63.16,"currency_code":"USD","in_stock":true},{"title":"100mm X 100mm X 14mm \/ 1","offer_id":52379020886290,"sku":"WWLFABGQJDWW187x1","price":117.08,"currency_code":"USD","in_stock":true},{"title":"200mm X 100mm X 14mm \/ 1","offer_id":52379020919058,"sku":"WWLFABGQJDWW188x1","price":229.73,"currency_code":"USD","in_stock":true},{"title":"200mm X 200mm X 14mm \/ 1","offer_id":52379020951826,"sku":"WWLFABGQJDWW189x1","price":453.94,"currency_code":"USD","in_stock":true},{"title":"300mm X 200mm X 14mm \/ 1","offer_id":52379020984594,"sku":"WWLFABGQJDWW190x1","price":678.15,"currency_code":"USD","in_stock":true},{"title":"300mm X 300mm X 14mm \/ 1","offer_id":52379021017362,"sku":"WWLFABGQJDWW191x1","price":1013.99,"currency_code":"USD","in_stock":true},{"title":"400mm X 300mm X 14mm \/ 1","offer_id":52379021050130,"sku":"WWLFABGQJDWW192x1","price":1331.37,"currency_code":"USD","in_stock":true},{"title":"400mm X 400mm X 14mm \/ 1","offer_id":52379021082898,"sku":"WWLFABGQJDWW193x1","price":1772.79,"currency_code":"USD","in_stock":true},{"title":"150mm X 150mm X 14mm \/ 1","offer_id":52379021115666,"sku":"WWLFABGQJDWW194x1","price":257.68,"currency_code":"USD","in_stock":true},{"title":"250mm X 250mm X 14mm \/ 1","offer_id":52379021148434,"sku":"WWLFABGQJDWW195x1","price":706.44,"currency_code":"USD","in_stock":true},{"title":"350mm X 350mm X 14mm \/ 1","offer_id":52379021181202,"sku":"WWLFABGQJDWW196x1","price":1361.8,"currency_code":"USD","in_stock":true},{"title":"450mm X 450mm X 14mm \/ 1","offer_id":52379021213970,"sku":"WWLFABGQJDWW197x1","price":2214.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-01_09adbff7-79d4-41a0-9207-ca1b96ba15e8.jpg?v=1781770922","url":"https:\/\/homediyer.com\/de\/products\/stainless-steel-sheet-14mm-thick-grade-304-a2-bright-polish","provider":"HomeDIYer","version":"1.0","type":"link"}