{"product_id":"cupronickel-sheet-b18-copper-nickel-alloy-plate-metal-foil-band-0-1mm-3mm-thick","title":"Cupronickel Sheet B18 Copper-Nickel Alloy Plate Metal Foil Band 0.1mm-3mm Thick","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eCupronickel Sheet B18 — Corrosion-Resistant Copper-Nickel Alloy Plate for Precision DIY Work\u003c\/h2\u003e\n\u003cp\u003eWhen your project demands a metal that holds up against moisture, mild chemicals, and repeated mechanical stress, standard copper or brass often falls short. Makers, hobbyists, and small-workshop fabricators working on marine fittings, electrical shielding, decorative metalwork, or precision shims need a material that combines workability with genuine durability — that's exactly where the B18 cupronickel sheet delivers.\u003c\/p\u003e\n\u003cp\u003eThis cupronickel sheet is composed of a copper-nickel alloy (B18 grade, approximately 18% nickel content), giving it a distinctive silver-toned finish and excellent resistance to corrosion in humid or mildly saline environments. Sheets are available in thicknesses ranging from 0.1 mm to 3.0 mm (approximately 0.004 in to 0.118 in) and in cut sizes from 100 mm × 100 mm up to 100 mm × 300 mm (roughly 3.9 in × 3.9 in to 3.9 in × 11.8 in), with quantity options from 1 to 10 pieces per order.\u003c\/p\u003e\n\u003cp\u003eTypical applications include DIY electrical shielding panels, marine hardware prototypes, decorative inlay strips for woodworking, thin shim stock for mechanical assemblies, and craft jewelry blanks requiring a silver-like appearance without precious-metal cost. The consistent rolled finish makes it suitable for etching, forming, and light machining in a home workshop or small production run.\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 Hand shears, tin snips, jeweler's saws, CNC routers (light passes), laser engravers, and standard metalworking bench tools. Suitable for soldering with silver-bearing or lead-free solder.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Cupronickel Alloy Sheets\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🪙\u003c\/span\u003e\n\u003cstrong\u003eB18 Copper-Nickel Alloy\u003c\/strong\u003e\n\u003cp\u003eApproximately 18% nickel content delivers a bright silver tone and superior corrosion resistance compared to pure copper or standard brass sheet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\n\u003cstrong\u003eWide Thickness Range\u003c\/strong\u003e\n\u003cp\u003eAvailable from ultra-thin 0.1 mm foil up to a sturdy 3.0 mm plate, covering shim stock, shielding, forming, and structural inlay applications in one product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n\u003cstrong\u003eMultiple Cut Sizes\u003c\/strong\u003e\n\u003cp\u003eChoose from five sheet dimensions — 100×100 mm, 100×200 mm, 150×150 mm, 200×200 mm, and 100×300 mm — to minimize waste and match your project footprint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌊\u003c\/span\u003e\n\u003cstrong\u003eCorrosion-Resistant Surface\u003c\/strong\u003e\n\u003cp\u003eThe nickel content forms a stable passive layer that resists oxidation and mild salt exposure, making these sheets suitable for humid workshop environments and marine-adjacent applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\n\u003cstrong\u003eGood Electrical Conductivity\u003c\/strong\u003e\n\u003cp\u003eCupronickel retains meaningful electrical conductivity, making it a practical choice for EMI shielding panels, contact strips, and low-resistance electrical enclosures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e\n\u003cp\u003eOrder from 1 to 10 pieces per variant so you can prototype with a single sheet or stock up for a production run without committing to bulk minimums.\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 — Cupronickel Sheet\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCupronickel alloy (B18 grade, ~18% Ni, balance Cu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eRolled, silver-toned matte surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e0.1 mm – 3.0 mm (0.004 in – 0.118 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Widths\u003c\/th\u003e\n\u003ctd\u003e100 mm, 150 mm, 200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e100 mm, 150 mm, 200 mm, 300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSheet Dimensions\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 \/ 2 \/ 3 \/ 4 \/ 5 \/ 10 pcs (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003ctd\u003eTypically 300–400 MPa (varies by thickness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eTypically 60–90 HRB (varies by thickness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003eApproximately 4–6% IACS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eGood resistance to moisture and mild saline environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMachinability\u003c\/th\u003e\n\u003ctd\u003eSuitable for shearing, bending, light milling, and soldering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eItem Type\u003c\/th\u003e\n\u003ctd\u003eMetal Sheet \/ Flat Stock\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 shim stock, gaskets, or flexible foil applications, choose 0.1–0.3 mm. For EMI shielding panels or decorative inlay, 0.4–0.8 mm offers a good balance of rigidity and formability. For structural brackets, marine fittings, or parts that need to hold shape under load, 1.0–3.0 mm is recommended. If you are unsure, start with a thinner sheet and test before committing to a thicker variant.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs cupronickel the same as nickel silver or German silver?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThey are related but not identical. Nickel silver (German silver) typically contains copper, nickel, and zinc, giving it a slightly different color and mechanical profile. B18 cupronickel is a binary copper-nickel alloy with no zinc, which generally provides better corrosion resistance in marine and humid environments. Both have a silver-like appearance, but cupronickel is the preferred choice where moisture resistance is a priority.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I solder or weld these sheets?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Cupronickel solders well with silver-bearing or lead-free solder using standard flux. For brazing or TIG welding, use filler metals compatible with copper-nickel alloys and ensure adequate ventilation. Thinner sheets (under 0.3 mm) require careful heat management to avoid warping — use a heat sink or work in short passes.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these sheets rust or tarnish over time?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCupronickel does not rust (it contains no iron), and its nickel content significantly slows tarnishing compared to pure copper. In dry indoor conditions, the surface remains stable for extended periods. In humid or mildly saline environments, a light patina may develop over time, which can be removed with a mild metal polish. For long-term outdoor exposure, a clear lacquer coating is recommended.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tools do I need to cut these sheets at home?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor sheets up to 0.5 mm, sharp tin snips or aviation shears work well. For 0.6–1.5 mm, a metal nibbler, jeweler's saw, or angle grinder with a thin cutting disc is effective. Sheets 2.0 mm and above are best cut with a bandsaw, jigsaw with a metal blade, or CNC router. Always deburr cut edges with a file or deburring tool before handling.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these sheets compatible with laser engraving or etching?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCupronickel can be chemically etched using ferric chloride solution, similar to standard copper. For laser engraving, a fiber laser is required — CO₂ lasers are generally not effective on bare metal. Thinner sheets (0.1–0.3 mm) are particularly popular for etched decorative panels and jewelry blanks due to their fine surface finish.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I select the right sheet size and quantity?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFirst determine the maximum flat dimension your project requires, then select the next size up to allow for cutting margins. For prototyping, ordering 1–2 pieces is cost-effective. If you are running a small production batch or need spares, the 5- or 10-piece options offer better per-sheet value. Mix and match thickness and size variants to suit different stages of your build.\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, Width × Length, and Amount 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 shim stock, gaskets, or flexible foil applications, choose 0.1–0.3 mm. For EMI shielding panels or decorative inlay, 0.4–0.8 mm offers a good balance of rigidity and formability. For structural brackets, marine fittings, or parts that need to hold shape under load, 1.0–3.0 mm is recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is cupronickel the same as nickel silver or German silver?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"They are related but not identical. B18 cupronickel is a binary copper-nickel alloy with no zinc, which generally provides better corrosion resistance in marine and humid environments compared to nickel silver (German silver).\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I solder or weld these sheets?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Cupronickel solders well with silver-bearing or lead-free solder using standard flux. For brazing or TIG welding, use filler metals compatible with copper-nickel alloys and ensure adequate ventilation.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these sheets rust or tarnish over time?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Cupronickel does not rust and its nickel content significantly slows tarnishing. In dry indoor conditions the surface remains stable for extended periods. A light patina may develop in humid environments and can be removed with mild metal polish.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What tools do I need to cut these sheets at home?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For sheets up to 0.5 mm, tin snips or aviation shears work well. For 0.6–1.5 mm, a metal nibbler or jeweler's saw is effective. Sheets 2.0 mm and above are best cut with a bandsaw or jigsaw with a metal blade.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these sheets compatible with laser engraving or etching?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Cupronickel can be chemically etched using ferric chloride solution. For laser engraving, a fiber laser is required. Thinner sheets (0.1–0.3 mm) are popular for etched decorative panels and jewelry blanks.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I select the right sheet size and quantity?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Determine the maximum flat dimension your project requires, then select the next size up to allow for cutting margins. For prototyping, 1–2 pieces is cost-effective. For small production batches, the 5- or 10-piece options offer better per-sheet value.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"0.1mm \/ 100mm x 100mm \/ 10 pcs","offer_id":52409382502674,"sku":"PENG012509x1","price":8.09,"currency_code":"USD","in_stock":true},{"title":"0.1mm \/ 100mm x 200mm \/ 5 pcs","offer_id":52409382535442,"sku":"PENG012517x1","price":8.09,"currency_code":"USD","in_stock":true},{"title":"0.1mm \/ 200mm x 200mm \/ 3 pcs","offer_id":52409382568210,"sku":"PENG012524x1","price":9.18,"currency_code":"USD","in_stock":true},{"title":"0.2mm \/ 100mm x 100mm \/ 5 pcs","offer_id":52409382600978,"sku":"PENG012510x1","price":8.09,"currency_code":"USD","in_stock":true},{"title":"0.2mm \/ 100mm x 200mm \/ 3 pcs","offer_id":52409382633746,"sku":"PENG012518x1","price":9.78,"currency_code":"USD","in_stock":true},{"title":"0.2mm \/ 150mm x 150mm \/ 2 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