{"product_id":"brass-discs-blanks-metal-round-gasket-sheets-20mm-150mm-2mm","title":"Brass Discs Blanks Metal Round Gasket Sheets Diameter 20mm-150mm Thickess 2mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eBrass Disc Blanks \u0026amp; Round Metal Gasket Sheets — Precision-Cut, 2mm Thick\u003c\/h2\u003e\n    \u003cp\u003eWhen your project demands a flat, dimensionally consistent metal disc that won't flex under load or corrode in damp environments, finding the right blank off the shelf can be frustrating. These brass disc blanks are designed for makers, machinists, hobbyists, and small-workshop fabricators who need a reliable starting point — whether you're cutting a custom gasket, stamping a pendant, or shimming a mechanical assembly.\u003c\/p\u003e\n    \u003cp\u003eEach disc is cut from solid brass sheet stock at a uniform 2mm (approximately 5\/64 in) thickness. Diameters range from 20mm (~13\/16 in) up to 150mm (~5-29\/32 in), covering the most common sizes used in light fabrication and craft metalwork. The flat, unfinished surface is ready for drilling, filing, engraving, or chemical patination without additional prep.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include sealing gaskets for plumbing and pneumatic fittings, decorative disc blanks for jewelry stamping and enameling, shim stock for machinery alignment, and backing plates for leather or resin craft projects — all scenarios where a consistent brass round gasket sheet saves significant layout and cutting time.\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\u003eCompatible with:\u003c\/strong\u003e Standard metalworking tools — drill press, bench grinder, rotary tool, metal shears, and hand files. Suitable for soldering, brazing, and chemical finishing processes.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These Brass Disc Blanks\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-features\"\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e📏\u003c\/div\u003e\n      \u003cstrong\u003eWide Diameter Range\u003c\/strong\u003e\n      \u003cp\u003eAvailable from 20mm to 150mm in 12 size options, so you can match the exact footprint your project requires without over-cutting larger stock.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e⚙️\u003c\/div\u003e\n      \u003cstrong\u003eUniform 2mm Thickness\u003c\/strong\u003e\n      \u003cp\u003eConsistent 2mm cross-section throughout each disc ensures flat seating surfaces and predictable material removal when machining or filing to final dimension.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🛡️\u003c\/div\u003e\n      \u003cstrong\u003eCorrosion-Resistant Brass Alloy\u003c\/strong\u003e\n      \u003cp\u003eBrass naturally resists oxidation and moisture-related degradation, making these discs suitable for both indoor and mildly humid outdoor applications without surface treatment.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e✂️\u003c\/div\u003e\n      \u003cstrong\u003eUnfinished, Work-Ready Surface\u003c\/strong\u003e\n      \u003cp\u003eThe flat, uncoated surface accepts drilling, stamping, engraving, soldering, and chemical patination directly — no stripping or degreasing of factory coatings required.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e📦\u003c\/div\u003e\n      \u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e\n      \u003cp\u003eOrder 1, 2, 4, or 5 pieces per listing to match your project run — whether you need a single prototype disc or a small batch for production gaskets.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n      \u003cstrong\u003eVersatile Cross-Application Use\u003c\/strong\u003e\n      \u003cp\u003eEqually at home as a sealing gasket blank, a jewelry stamping disc, a shim plate, or a decorative craft element — one format, many end uses.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — Brass Disc Blanks\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBrass (copper-zinc alloy)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e2mm (~5\/64 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e20mm – 150mm (~13\/16 in – 5-29\/32 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Diameters\u003c\/th\u003e\n\u003ctd\u003e20, 25, 30, 35, 50, 60, 70, 80, 90, 100, 120, 150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eUnfinished \/ Mill finish\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRound disc (flat)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1, 2, 4, or 5 pcs (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTolerance (Diameter)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHardness\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\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right diameter for my gasket or project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the outer diameter of the surface or bore you need to seal or cover, then select the next size up to allow for trimming. For gasket applications, the disc should overlap the sealing face by at least 2–3mm on each side. Use the diameter options (20mm–150mm) listed in the variant selector above to find your closest match.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs 2mm brass thick enough for a sealing gasket under pressure?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eA 2mm brass disc is suitable for low-to-medium pressure sealing applications — typically up to a few bar in plumbing or pneumatic fittings — when used with appropriate sealant or compressed between flanged surfaces. For high-pressure hydraulic systems, consult an engineer to confirm suitability for your specific pressure rating.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill these brass discs rust or corrode over time?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBrass does not rust (rust is specific to iron-based metals). It may develop a natural patina (darkening or greenish tarnish) over time when exposed to air and moisture, which many makers find desirable. If you need a bright finish, a light polish with a brass cleaner restores the surface. For outdoor or marine environments, a clear lacquer coat is recommended.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I drill, cut, or engrave these discs with standard tools?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Brass is one of the most machinable metals available. You can drill it with standard HSS drill bits, cut it with metal shears or a rotary tool, file the edges, and engrave it with a rotary engraver or CNC router. Use cutting fluid or light oil when drilling to extend bit life and achieve cleaner holes.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these discs compatible with soldering and brazing?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Brass solders and brazes readily. Use a standard lead-free silver solder with flux for electrical or plumbing joints, or a brass brazing rod for higher-strength structural joins. Clean the surface with fine abrasive paper before soldering to ensure good adhesion.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between ordering 1 pc vs. 4 pcs or 5 pcs?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eEach quantity option (1, 2, 4, or 5 pcs) ships the specified number of discs of your chosen diameter. Multi-piece options offer a lower per-unit cost and are ideal when you need spares, are running a small production batch, or want to test multiple finishing techniques on the same blank size.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these discs be used for jewelry making or metal stamping?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAbsolutely. The unfinished, flat surface is ideal for metal stamping, hand engraving, enameling, and resin inlay. Smaller diameters (20mm–35mm) are popular for pendant blanks and coin-style charms, while larger sizes work well as decorative plates or backing discs for mixed-media art.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your diameter and 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 diameter for my gasket or project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the outer diameter of the surface or bore you need to seal or cover, then select the next size up to allow for trimming. For gasket applications, the disc should overlap the sealing face by at least 2–3mm on each side. Use the diameter options (20mm–150mm) listed in the variant selector to find your closest match.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is 2mm brass thick enough for a sealing gasket under pressure?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A 2mm brass disc is suitable for low-to-medium pressure sealing applications — typically up to a few bar in plumbing or pneumatic fittings — when used with appropriate sealant or compressed between flanged surfaces. For high-pressure hydraulic systems, consult an engineer to confirm suitability.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these brass discs rust or corrode over time?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Brass does not rust. It may develop a natural patina over time. A light polish with brass cleaner restores the surface. For outdoor or marine environments, a clear lacquer coat is recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I drill, cut, or engrave these discs with standard tools?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Brass is highly machinable. You can drill it with standard HSS drill bits, cut it with metal shears or a rotary tool, file the edges, and engrave it with a rotary engraver or CNC router. Use cutting fluid when drilling for cleaner holes.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these discs compatible with soldering and brazing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Brass solders and brazes readily. Use lead-free silver solder with flux for plumbing or electrical joints, or a brass brazing rod for structural joins. Clean the surface before soldering for best adhesion.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between ordering 1 pc vs. 4 pcs or 5 pcs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each quantity option ships the specified number of discs of your chosen diameter. Multi-piece options offer a lower per-unit cost and are ideal for small production batches or when you want to test multiple finishing techniques.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these discs be used for jewelry making or metal stamping?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The unfinished flat surface is ideal for metal stamping, hand engraving, enameling, and resin inlay. Smaller diameters (20mm–35mm) are popular for pendant blanks, while larger sizes work well as decorative plates or backing discs.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"20mm \/ 1 pcs","offer_id":52411285045522,"sku":"XFHTBLB0599x1","price":2.71,"currency_code":"USD","in_stock":true},{"title":"25mm \/ 1 pcs","offer_id":52411285078290,"sku":"XFHTBLB0600x1","price":3.33,"currency_code":"USD","in_stock":true},{"title":"30mm \/ 1 pcs","offer_id":52411285111058,"sku":"XFHTBLB0601x1","price":3.6,"currency_code":"USD","in_stock":true},{"title":"35mm \/ 1 pcs","offer_id":52411285143826,"sku":"XFHTBLB0602x1","price":4.2,"currency_code":"USD","in_stock":true},{"title":"50mm \/ 1 pcs","offer_id":52411285176594,"sku":"XFHTBLB0603x1","price":4.83,"currency_code":"USD","in_stock":true},{"title":"60mm \/ 1 pcs","offer_id":52411285209362,"sku":"XFHTBLB0604x1","price":5.83,"currency_code":"USD","in_stock":true},{"title":"70mm \/ 1 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