🔷 Premium Custom Indium Plate & Sheet for Industrial Supply

✨ NiTiCu Metal supplies premium custom indium plate and indium sheet for buyers who need a soft, high-purity, low-melting-point metal in flat form. Pure indium is not selected because it is strong like titanium or hard like tungsten; it is selected because it is soft, ductile, compressible, and able to conform to contact surfaces under pressure. For research laboratories, vacuum equipment builders, thermal management projects, and low-temperature bonding applications, a carefully supplied indium plate can become a practical material solution rather than just a rare metal sample.

🌙 This product page is focused on thicker flat indium material. If you need very thin flexible material, indium foil may be more suitable. If you need round material for sealing grooves or soldering trials, indium wire may be better. However, if your project requires a cut square, rectangular blank, thermal pad, spacer, test coupon, sealing piece, or flat high-purity sample, an indium plate or indium sheet is usually the correct starting form.

🧪 What Is Indium Plate?

🔬 Indium plate is a flat form of metallic indium, normally supplied as a rolled, flattened, cast, or cut piece according to the required thickness and size. It can be produced as small research samples, square plates, rectangular sheets, narrow strips, or custom blanks. Because indium is naturally soft, the surface may show light pressure marks more easily than hard metals, but this softness is also the reason the material performs well in sealing, thermal contact, and low-temperature joining applications.

🧭 An indium plate is often requested when customers need better dimensional stability than foil but still require the gentle deformation behavior of pure indium. In actual use, the plate may be compressed between two surfaces, cut into smaller preforms, used as a thermal interface layer, or prepared as a material sample for testing. NiTiCu can support custom dimensions, purity selection, packing protection, and export documents according to the order requirement.

📊 Key Physical Data of Pure Indium

🧠 The following reference values help engineers estimate weight, processing temperature, and application suitability. Indium has atomic number 49, relative atomic mass 114.818, density about 7.31 g/cm³, and a melting point around 156.60°C. These values make indium significantly different from common structural metals and explain why a custom indium plate is useful in low-temperature and soft-contact designs.

⚙️ Property	📌 Typical Reference Value	🧩 Practical Meaning
🧪 Element	Indium / In	Metallic indium material
🔢 Atomic Number	49	Confirms element identity
⚖️ Relative Atomic Mass	114.818	Useful for material calculation
🧱 Density	7.31 g/cm³	Helps estimate plate weight
🌡️ Melting Point	156.60°C	Suitable for low-temperature bonding
🔥 Boiling Point	Approx. 2027°C	Shows broad thermal reference range
🧊 State at 20°C	Solid	Easy to cut, pack, store, and ship
⚡ Thermal Conductivity	Approx. 86 W/m·K	Useful for thermal interface design

🌡️ The low melting point is one of the most important advantages of indium. A pure indium plate can be considered for low-temperature joining where higher-temperature soldering, brazing, or welding could damage nearby components. In addition, indium’s soft metallic nature allows it to fill small surface gaps under pressure, which can improve real contact area between mating surfaces.

🧩 Available Specifications

📐 NiTiCu provides indium plate and indium sheet in custom sizes instead of forcing customers to choose only fixed catalog dimensions. Thickness, width, length, purity, tolerance, and packing can be discussed according to your application. For small R&D orders, customers can request several pieces for testing. For repeat industrial use, we can support batch supply with consistent labeling and documentation.

📦 Item	✅ Available Options
🏷️ Product Name	Indium Plate / Indium Sheet
🧪 Material	Metallic Indium
💎 Purity	99.9%, 99.99%, 99.995%, 99.999%
📏 Thickness	Commonly 0.5 mm – 20 mm custom
📐 Width & Length	Cut to customer requirement
🪞 Surface	Natural silvery-white soft metal surface
🛠️ Processing	Rolling, cutting, flattening, trimming
📑 Documents	COA, specification sheet, invoice, packing list
🧰 Packaging	Sealed bag, vacuum bag, foam box, carton, wooden case

🧷 If your project has a drawing, please send it together with the inquiry. If you only know the required weight, we can help estimate a practical size based on the density of indium. For example, a 100 mm × 100 mm × 1 mm indium plate has a volume of 10 cm³ and an estimated mass of about 73.1 g before allowing for cutting tolerance and edge finishing.

💎 Purity Options for Different Uses

🧬 Purity selection should match the sensitivity of the application. A general trial sample may not require the highest grade, while advanced research or controlled testing may require higher purity. NiTiCu can supply multiple purity levels and provide a COA when required. The final selection should consider not only purity but also size, thickness, surface condition, packing, and documentation needs.

🧾 Purity Grade	📊 Indium Content	🎯 Typical Direction
🌿 3N	99.9%	General industrial trials and basic samples
🔷 4N	99.99%	Thermal interface, vacuum sealing, R&D use
💠 4N5	99.995%	Higher-purity laboratory projects
🌟 5N	99.999%	Advanced high-purity research requirements

🧪 For most industrial and laboratory buyers, 99.99% purity is a practical balance between performance and cost. A 99.99% indium plate can be used for many sealing, bonding, thermal interface, and experimental material projects. If your engineering team needs impurity limits for specific elements, please send the target specification before ordering so we can confirm the most suitable supply route.

🛠️ Indium Plate vs Indium Sheet vs Indium Foil

🪶 The terms plate, sheet, and foil are sometimes used differently by different buyers, so it is helpful to define the requirement by actual thickness instead of name alone. In general, foil is thin and flexible, sheet is a medium-thickness flat form, and plate is thicker and more stable. If you are not sure which form you need, send your target thickness and application, and NiTiCu will recommend whether indium plate, indium sheet, or indium foil is more suitable.

🧩 Form	📏 Typical Thickness Idea	🧭 Best-Fit Application
🍃 Indium Foil	Very thin and flexible	Thin gasket, wrapping, delicate interface layer
📄 Indium Sheet	Medium flat form	Cut pieces, pads, research samples
🧱 Indium Plate	Thicker flat form	Sealing blanks, spacers, test plates
🌀 Indium Wire	Round or coil form	Sealing grooves, wire bonding trials, soldering tests

🔩 This page focuses on the indium plate category because many customers need a flat piece that can hold its shape during handling, packing, and installation. A thicker plate can be easier to position than foil, especially when the part must be placed between two mechanical surfaces or cut into small blanks before use.

🌡️ Thermal Interface Applications

⚡ Thermal interface performance depends not only on the bulk thermal conductivity of the material, but also on how well the material contacts both surfaces. Hard materials may leave microscopic air gaps when the mating surfaces are not perfectly flat. A soft indium plate can deform under controlled pressure and improve the real contact area, which is why pure indium is widely considered for demanding thermal contact applications.

🛰️ In electronics testing, sensors, power devices, optical equipment, and laboratory fixtures, an indium sheet or plate can be used as a soft metallic thermal interface layer. The material may be supplied as square pads, rectangular pieces, or custom shapes. Customers should confirm operating temperature, compression force, surface finish, and whether the design requires reflow bonding or only pressure contact.

🧊 Vacuum and Cryogenic Sealing Applications

🧿 Indium is also valued for vacuum and cryogenic sealing because it can form a soft metallic seal under pressure. Unlike many elastomer materials, metallic indium can be used where clean metal contact, low-temperature workability, or special vacuum conditions are required. A custom indium plate can be cut into sealing blanks, pressed into rings, or machined into simple shapes depending on the assembly design.

🌌 For vacuum systems, the correct sealing result depends on surface finish, mating material, compression geometry, installation method, and cleanliness. Indium is soft, so it should be handled with gloves and protected from unnecessary scratches or contamination before installation. If your indium plate will be used in a vacuum seal, please provide the drawing, pressure condition, temperature range, and whether the seal is temporary or permanent.

🔥 Low-Temperature Bonding and Joining

🧲 Because indium melts at about 156.60°C, it can support low-temperature bonding designs where high heat is not acceptable. In some assemblies, a small indium plate or preform can be placed between two components and heated according to the process requirement. This approach may help reduce thermal stress compared with higher-temperature joining methods, although the final result depends strongly on surface preparation and process control.

🧫 For bonding applications, customers should consider the bonding area, pressure, heating rate, atmosphere, surface oxide, and post-bonding environment. NiTiCu supplies the material, but the customer’s process determines the final joint performance. If your application requires a specific bonding result, please share the process details so we can recommend appropriate thickness, purity, and packing for the indium plate.

🔬 Research, Laboratory, and Prototype Use

🧑‍🔬 Many customers buy indium plate for research because the material is easy to cut, weigh, press, melt, and observe. It can be used for alloy development, material behavior tests, thermal contact experiments, sealing trials, calibration samples, and low-melting-point metal studies. Compared with powder or granules, flat indium material is easier to label, pack, and measure in many laboratory workflows.

🧰 Prototype buyers often begin with a small batch before confirming the final size. This is a practical approach because indium is soft and application-sensitive. A test indium plate allows the engineer to evaluate deformation, contact behavior, handling method, surface marks, and installation fit before moving to repeat production. NiTiCu welcomes trial orders and can help adjust specifications after customer feedback.

🏭 Typical Applications

🎯 Indium plate is used across several technical fields where softness, purity, and low-temperature behavior are more important than mechanical strength. The table below summarizes common application directions and the typical reason for selecting pure indium.

🏭 Application Area	🔍 Why Indium Helps	📋 Common Request
🌡️ Thermal Interface	Soft metal improves surface contact	Flat pad, square sheet, custom plate
🧊 Cryogenic System	Workable at low temperature	Metallic seal piece or interface blank
🧿 Vacuum Sealing	Compressible metal seal	Cut gasket blank or ring material
🔥 Low-Temperature Bonding	Melts near 156.60°C	Small plate, preform, or sheet
🔬 Research Laboratory	Easy to test and prepare	High-purity sample pieces
⚗️ Alloy Development	Adds indium into formulas	Plate, chip, strip, or cut piece
🛰️ Test Fixtures	Stable soft contact material	Custom pads and spacers

🌟 The best indium plate specification depends on how the material will be used. For example, a thermal interface pad may need controlled thickness and clean packing, while a laboratory sample may focus more on purity and weight. A sealing blank may require a special shape or extra trimming allowance. This is why NiTiCu asks for application details before confirming the final quotation.

📐 Size, Tolerance, and Surface Notes

🪞 Pure indium is much softer than most common metals, so customers should understand its natural surface behavior. Minor pressure marks, small handling traces, or slight surface variation can appear during cutting and packing. These marks are usually not a functional problem for sealing or thermal interface use, but they should be considered if the buyer expects a decorative mirror surface.

📏 Tolerance should be realistic for a soft metal. Thin sheets may bend or deform more easily, while thicker plates are more stable but still require careful handling. Extremely tight tolerances may increase cost and may not be practical for all dimensions. If your design has strict thickness, flatness, or edge requirements, please send a drawing before ordering the indium plate.

📦 Packaging and Shipment

🚚 Packaging is very important because indium can be dented more easily than hard metals. NiTiCu can pack small pieces in sealed bags, vacuum bags, protective foam boxes, or separated layers. Larger plates can be protected with soft padding and placed in cartons or wooden cases. The goal is to reduce surface damage, prevent loose movement, and keep the material easy to identify after arrival.

📮 For international shipment, we can provide commercial invoice, packing list, product label, and shipment photos according to order needs. Shipping method can be discussed based on quantity, destination, urgency, and package weight. Please provide your country, city, postal code, and preferred courier if you need a shipping estimate together with the indium plate quotation.

📑 Quality Documentation

🧾 Documentation helps purchasing teams, laboratories, and customs brokers confirm the material before and after shipment. NiTiCu can provide COA, specification sheet, invoice, packing list, and product photos. For high-purity indium plate orders, the COA is especially important because it records the purity level and supports internal inspection.

📑 Document	🧭 Purpose
🧪 COA	Confirms purity and material identity
📋 Specification Sheet	Shows grade, form, size, and supply condition
🧾 Commercial Invoice	Supports purchasing and customs clearance
📦 Packing List	Shows quantity, net weight, and package details
📸 Shipment Photos	Helps customer confirm goods before dispatch
🏷️ Custom Label	Supports batch, project, or item identification

🛡️ If your company requires special inspection data, please tell us before production. Some documents can be prepared based on standard order information, while special test reports may require additional cost and lead time. Clear documentation requirements at the beginning help avoid delays before shipment.

⚖️ Handling and Storage Guidance

🧤 Operators should handle indium plate with clean gloves to reduce fingerprints, moisture, and surface contamination. The material should be stored in a dry, clean place and protected from heavy pressure. Since indium is soft, do not stack heavy objects directly on thin sheets or leave unpacked pieces in contact with sharp tools.

🧴 Before sealing, bonding, or thermal interface use, customers should clean the contact surface according to their own process requirements. Surface oxide, dust, oil, and handling marks can affect final performance. NiTiCu can protect the material during packing, but final cleaning and installation should follow the customer’s engineering procedure.

🧮 Weight Calculation Example

⚙️ Engineers often need to estimate the weight before ordering. The formula is simple: volume equals length × width × thickness, and mass equals volume × density. Since indium density is about 7.31 g/cm³, a 50 mm × 50 mm × 2 mm indium plate has a volume of 5 cm³ and an estimated mass of about 36.55 g. A 100 mm × 100 mm × 1 mm piece has a volume of 10 cm³ and an estimated mass of about 73.1 g.

📏 Example Size	🧱 Volume	⚖️ Estimated Mass
🔹 50 × 50 × 1 mm	2.5 cm³	Approx. 18.3 g
🔸 50 × 50 × 2 mm	5 cm³	Approx. 36.6 g
🔺 100 × 100 × 1 mm	10 cm³	Approx. 73.1 g
🔶 100 × 100 × 5 mm	50 cm³	Approx. 365.5 g

📊 These values are for quick estimation only. Actual weight may vary due to cutting tolerance, edge finishing, surface condition, and measurement method. If the order is priced by weight, final confirmed weight should be based on actual production and packing records.

❓ FAQ

❔ What purity can you supply?

🧪 We can supply common indium purity levels such as 99.9%, 99.99%, 99.995%, and 99.999%. Please tell us your target application so we can recommend a suitable grade.

❔ Can you make custom sizes?

✂️ Yes. NiTiCu can supply custom indium plate, sheet, strip, and cut pieces according to your required thickness, width, length, quantity, and tolerance.

❔ Is indium plate suitable for thermal interface use?

⚡ Yes, pure indium is commonly considered for thermal interface designs because it is soft, conformable, and thermally conductive. Final performance depends on surface condition, compression force, temperature, and assembly design.

❔ Can indium plate be used for vacuum sealing?

🧊 Yes, indium can be used as a soft metallic sealing material in selected vacuum and cryogenic applications. Please provide your drawing and working conditions for better specification support.

❔ How should I request a quotation?

📨 Please send the purity, thickness, size, quantity, tolerance, application, destination, and required documents. If possible, include a drawing or photo so we can understand the exact requirement.

📞 Contact Us for Indium Plate

📩 Looking for a reliable indium plate supplier? Contact NiTiCu Metal for custom size, high-purity indium sheet, technical discussion, price quotation, sample supply, and export-ready packaging. Please send your required purity, thickness, size, quantity, application, and delivery address. Our team will help you confirm the most practical specification and respond within 24 hours.

🏢 Company: Shaanxi Nickel Titanium Copper Metal Co., Ltd.

📧 Email: sales@niticu.com

📱 Phone / WhatsApp / WeChat: +86 13335373172

🏭 Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi Province, China

🌐 Website: https://niticu.com

🚀 NiTiCu Metal supports global customers with custom indium plate, indium sheet, indium foil, indium wire, and other high-purity metal materials. Send your inquiry today to get a fast quotation, clear technical communication, and careful packaging for international shipment.

Indium Plate

Reliable Indium Plate & Sheet – 99.99% Pure Custom Supply