🔷 High Purity Indium Granules for Alloying, Vacuum Evaporation, Electronics & Research

Indium Granules are soft, silvery-white metallic particles supplied in high-purity grades for advanced material preparation, low-temperature alloying, vacuum evaporation, electronics, laboratory research, and specialty industrial applications. With a low melting point, excellent ductility, good wettability, and stable metallic characteristics, indium is widely used as a valuable functional metal in modern material systems.

Shaanxi Nickel Titanium Copper Metal Co., Ltd. supplies Indium Granules in multiple purity levels, including 99.9%, 99.99%, 99.995%, and 99.999%, depending on customer requirements. The product can be supplied as irregular granules, small pellets, shot-like particles, cut pieces, or customized particle sizes. Each batch can be packed according to purity grade, order quantity, and application requirements.

Compared with refractory metals such as tungsten, molybdenum, tantalum, or titanium, indium has a very different performance profile. It is not selected for high-temperature strength, but for its low melting temperature, softness, formability, and compatibility with many low-melting alloy systems. These characteristics make Indium Granules suitable for customers who need precise weighing, controlled melting, alloy preparation, evaporation loading, or research-scale material development.

🧪 Product Overview

Item	Description
Product Name	Indium Granules
Material	Metallic Indium
Chemical Symbol	In
Purity	99.9%, 99.99%, 99.995%, 99.999%
Appearance	Silvery-white metallic particles
Shape	Granules, pellets, shot, small cut pieces, custom particles
Melting Point	Approx. 156.6°C
Density	Approx. 7.31 g/cm³
Supply Condition	Clean metallic granules
Package	Sealed bag, bottle, vacuum package, or customized packing
Documentation	COA, specification sheet, commercial invoice, packing list

Our Indium Granules are designed for users who require a clean, convenient, and easy-to-handle indium feedstock. The granular form makes the material easier to weigh, distribute, and load compared with large ingots or irregular bulk blocks. For small-batch alloy production, laboratory experiments, or evaporation processes, granules can help improve material handling efficiency and reduce preparation time.

✨ Key Features of Indium Granules

✅ High Purity Options

We can supply Indium Granules in several purity grades, from general industrial grade to high-purity research grade. Customers may choose suitable purity according to their process requirements, budget, and impurity control needs.

Typical available purity options include:

Purity Grade	Typical Use
99.9%	General alloying, education, basic experiments
99.99%	Electronics, vacuum evaporation, laboratory research
99.995%	Advanced material preparation, coating, specialty alloys
99.999%	High-purity research, semiconductor-related material studies

For high-purity applications, the impurity limits can be controlled more strictly. A Certificate of Analysis can be supplied when required. If customers have special requirements for tin, lead, zinc, copper, iron, or other trace elements, we can discuss the inspection details before production or shipment.

✅ Low Melting Point Metal

One of the most important features of Indium Granules is the low melting point of indium. With a melting point of approximately 156.6°C, indium can be melted at a much lower temperature than most engineering metals. This makes it useful for low-temperature alloy systems, thermal contact materials, special solders, sealing materials, and research applications where controlled melting behavior is required.

The low melting point also makes the granular form more convenient. Users can weigh small amounts of material accurately and melt only the required quantity. This is especially useful in laboratory and small-batch production environments.

✅ Soft and Ductile Metallic Behavior

Indium is a very soft metal. Unlike hard metal granules such as chromium, molybdenum, tungsten, or tantalum, Indium Granules can show surface marks, slight deformation, or flattened edges during handling and transportation. This is a normal physical characteristic of indium and does not mean the product quality is poor.

Because of its softness, indium can conform to contact surfaces, making it useful in certain sealing and thermal interface applications. The ductile nature of indium also allows it to be pressed, cut, or shaped more easily than many other metals.

✅ Convenient Granular Form

The granular form provides practical advantages for many users. Indium Granules are easier to weigh and portion compared with large ingots. They are also convenient for loading into crucibles, evaporation boats, alloy melting containers, and small laboratory furnaces.

For customers preparing alloys, small granules help improve batching accuracy. For customers using evaporation equipment, the particle form can make loading more flexible. For researchers, granules are easier to divide into small sample quantities.

📊 Typical Physical Properties of Indium

Property	Typical Value
Atomic Number	49
Atomic Weight	114.82
Density	Approx. 7.31 g/cm³
Melting Point	Approx. 156.6°C
Boiling Point	Approx. 2072°C
Appearance	Silvery-white metal
Hardness	Very soft
Ductility	Excellent
Electrical Conductivity	Good
Thermal Conductivity	Good
Crystal Structure	Tetragonal

These physical characteristics explain why Indium Granules are used in applications where low-temperature processing, softness, thermal contact, alloying behavior, or high-purity metallic feedstock is required. For reference, the Royal Society of Chemistry lists indium as a Group 13 metal with a melting point of approximately 156.60°C and a density of about 7.31 g/cm³, which supports its use as a soft low-melting functional metal in specialized material systems. The combination of low melting point and metallic conductivity gives indium a special position among functional metals.

🏭 Main Applications of Indium Granules

🔬 Laboratory Research and Material Development

Indium Granules are widely used in laboratories, universities, research institutes, and material development projects. Researchers often require small quantities of high-purity metals for experimental melting, alloy design, thermal behavior studies, evaporation tests, or sample preparation.

The granular form is especially suitable for research because it allows accurate weighing and easy material handling. Compared with large ingots, granules reduce preparation difficulty and make small-batch experiments more efficient.

For scientific users, high-purity indium can be used to study alloy formation, phase behavior, thermal interface properties, low-melting metal systems, and thin-film deposition processes. The product can be supplied with documentation to support research records and internal quality control.

⚙️ Low-Melting Alloy Preparation

Indium is often used as an important component in low-melting alloys. It can be combined with metals such as tin, bismuth, gallium, and other low-temperature alloying elements. Indium Granules are suitable for alloy preparation because they are easy to weigh, melt, and mix.

In alloy production, accurate material proportion is important. Granules allow users to control the amount of indium more precisely than large chunks. This is helpful for both small laboratory batches and industrial development batches.

Low-melting alloys containing indium may be used in thermal control, bonding, sealing, special soldering, temperature-sensitive devices, and experimental material systems. The exact alloy composition should be selected according to the customer’s working temperature, mechanical requirement, electrical behavior, and process conditions.

🧲 Vacuum Evaporation and Thin Film Coating

High purity Indium Granules can be used as evaporation material in vacuum deposition processes. The small particle form makes it convenient to load into evaporation boats, crucibles, or coating equipment. For thin film applications, purity and cleanliness are especially important.

Indium evaporation materials are commonly used in research and coating development. Customers may require 99.99% or higher purity depending on film performance, contamination control, and equipment requirements. For this reason, we recommend customers confirm their required purity grade before ordering.

Because indium is soft and low-melting, it should be handled carefully before loading into vacuum equipment. Clean tools, sealed storage, and proper packaging are recommended to avoid contamination.

📱 Electronics and Functional Materials

Indium is an important metal in electronics-related material systems. Indium Granules can be used as raw material for preparing indium-based alloys, conductive materials, bonding materials, and functional metal systems.

One of the best-known uses of indium is in indium tin oxide, commonly known as ITO. ITO is widely used in transparent conductive films, touch panels, display devices, photovoltaic components, and optical coatings. While the final material usually requires controlled processing and compound preparation, high-purity indium metal is an important upstream raw material in this field.

For electronics customers, material purity, impurity control, batch stability, and packaging cleanliness are important. We can supply Indium Granules with suitable purity grades and basic technical documents for customer evaluation.

🧩 ITO Material and Transparent Conductive Film Applications

Indium is one of the key raw materials used in ITO-related material systems. ITO materials are valued because they combine optical transparency with electrical conductivity, making them important in displays, touch screens, solar cells, sensors, and optical electronic devices. Research information from Colorado School of Mines also notes that indium tin oxide offers one of the best combinations of high optical transparency and high electrical conductivity among transparent conducting oxides.
Research information from Colorado School of Mines also notes that indium tin oxide offers one of the best combinations of high optical transparency and high electrical conductivity among transparent conducting oxides.

High-purity Indium Granules can be used as a starting material for further processing into indium compounds, indium tin systems, or other indium-based functional materials. For customers working in ITO-related research or production, the purity of indium feedstock may directly influence downstream material consistency.

Although Indium Granules are not the final ITO target by themselves, they are useful as a flexible raw material for laboratories, R&D teams, and material suppliers who need controlled indium input for experimental or production processes.

🌡️ Thermal Interface and Sealing Applications

Because indium is very soft and ductile, it can deform under pressure and improve contact between surfaces. This makes indium useful in some thermal interface, sealing, and bonding applications. In situations where surface conformity is more important than high mechanical strength, indium can provide unique advantages.

Indium Granules are convenient for customers who need to melt and process indium into foil, wire, preforms, seals, or customized shapes. The granules can be used as a feedstock before further forming or processing.

For thermal interface applications, customers should confirm working temperature, pressure, surface condition, required purity, and final shape before selecting indium material. Our team can supply high-purity indium raw material, while the final application design should be evaluated according to the customer’s actual operating conditions.

🔩 Soldering, Bonding and Specialty Metal Processing

Indium is also used in special soldering and bonding systems, particularly where low-temperature processing is required. Compared with many traditional soldering metals, indium-containing systems can offer lower melting behavior, good wetting characteristics, and useful bonding performance in selected applications.

Indium Granules can serve as a raw material for preparing indium-based solder alloys, bonding materials, or customized low-melting metal compositions. The granular form is easy to weigh and melt, which is valuable for laboratories and small production runs.

For soldering and bonding uses, it is important to confirm the final alloy design, melting range, substrate material, atmosphere, and process temperature. Pure indium granules can be used directly in some applications, but many bonding systems require alloy design and process testing.

📦 Available Supply Forms

We understand that different customers use indium in different ways. Some customers need small research samples, while others need regular supply for production. Our Indium Granules can be supplied in flexible forms according to actual demand.

Supply Form	Description
Irregular Granules	Suitable for general melting, alloying, and research
Small Pellets	More uniform appearance, convenient for weighing
Shot-Like Particles	Easy to handle and pack
Cut Pieces	Customized from indium ingot or strip
Custom Particle Size	Produced according to customer requirement
Bulk Package	Suitable for repeated industrial use
Small Sample Package	Suitable for laboratory testing and evaluation

Because indium is soft, the actual shape may not be as hard and sharply defined as refractory metal particles. Slight surface indentation, flattening, or particle adhesion may occur during handling. This is normal and should be considered when selecting packaging and particle size.

🧾 Chemical Composition and Quality Control

For high-purity metal products, chemical composition is one of the most important quality factors. We can supply Indium Granules according to different purity requirements and provide corresponding documentation when needed.

Grade	Indium Content	Typical Requirement
Industrial Grade	≥99.9%	General alloying and industrial use
High Purity Grade	≥99.99%	Electronics, evaporation, research
Ultra High Purity Grade	≥99.995%	Advanced material preparation
Special High Purity Grade	≥99.999%	High-end research and strict impurity control

Typical impurity elements may include Sn, Pb, Zn, Fe, Cu, Cd, Tl, and other trace elements depending on the raw material and refining route. For strict applications, customers should provide impurity limits before ordering. We can confirm whether the required grade is available and arrange suitable inspection documentation.

Quality control can include appearance inspection, purity confirmation, weight checking, packaging inspection, and batch information recording. For export orders, we can also support commercial invoice, packing list, product description, and other documents required for international shipment.

🧰 Customization Options

Shaanxi Nickel Titanium Copper Metal Co., Ltd. supports flexible customization for Indium Granules according to customer application and order quantity. We understand that high-purity metal buyers often have different requirements for particle size, package weight, purity grade, and documentation.

Custom Item	Available Options
Purity	99.9%, 99.99%, 99.995%, 99.999%
Particle Size	Small granules, medium granules, custom cut pieces
Shape	Granules, pellets, shot, irregular particles
Package Weight	10g, 50g, 100g, 500g, 1kg, or bulk
Packaging	Plastic bottle, sealed bag, aluminum foil bag, vacuum package
Documentation	COA, specification sheet, product photos, packing list
Labeling	Product name, purity, batch number, net weight
Shipment	Express courier, air freight, or customer-designated logistics

For customers who are not sure which specification to choose, we recommend starting with the required purity grade, final application, approximate particle size, and order quantity. Based on this information, we can provide a more suitable quotation and technical suggestion.

🛡️ Packaging and Storage Recommendations

Indium is softer than most metals and should be packed carefully. Proper packaging helps protect the surface, reduce contamination, and make transportation safer.

Our standard packaging may include sealed plastic bottles, double plastic bags, aluminum foil bags, vacuum bags, or customized export packing. For small high-purity samples, independent small packages are recommended. For larger quantities, we can use stronger outer cartons or reinforced packaging according to shipment conditions.

Customers should store Indium Granules in a clean, dry, and sealed environment. The material should be kept away from dust, oil, moisture, corrosive chemicals, and mixed metal powders. For high-purity applications, operators should use clean gloves or tools when handling the material.

Recommended storage practices include:

Storage Item	Recommendation
Environment	Dry, clean, room-temperature storage
Contact	Avoid direct hand contact for high-purity use
Moisture	Keep sealed when not in use
Contamination	Avoid mixing with other metal powders or particles
Labeling	Keep batch label and purity information
Handling	Use clean tools and avoid unnecessary pressure

Proper storage is especially important when Indium Granules are used for vacuum evaporation, electronic materials, or high-purity laboratory experiments.

🚢 Export and Documentation Support

For international customers, clear documentation is important for import clearance, internal quality checks, and purchasing records. We can provide basic export documents according to the order and destination requirements.

Common documents may include:

Document	Purpose
Commercial Invoice	Customs clearance and payment record
Packing List	Shipment weight, package quantity, and item details
Certificate of Analysis	Purity and impurity information
Product Specification Sheet	Technical data and product description
Product Photos	Pre-shipment confirmation
MSDS / SDS if required	Safety and handling reference

For high-purity metal products, customers are encouraged to confirm documentation needs before shipment. This helps avoid delays during customs clearance or internal receiving inspection.

🌍 Why Choose Shaanxi Nickel Titanium Copper Metal Co., Ltd.

Shaanxi Nickel Titanium Copper Metal Co., Ltd. supplies high-purity metal materials, alloy products, metal granules, plates, rods, wires, foils, tubes, and customized industrial materials for global customers. Our product range focuses on titanium, nickel, copper, aluminum, tungsten, molybdenum, and other specialty metals according to customer demand.

For Indium Granules, we focus on clean material supply, flexible order quantity, purity selection, and practical documentation support. Whether the customer needs a small laboratory sample or a larger batch for production testing, we can provide suitable supply options.

Our service advantages include:

Advantage	Description
Flexible Purity Options	99.9% to 99.999% available depending on requirements
Custom Particle Size	Granules, pellets, shot, and cut pieces available
Small and Bulk Orders	Suitable for R&D, laboratory, and industrial use
Export Experience	Support international shipment and document preparation
Technical Communication	Product data and application discussion available
Fast Response	Inquiry, quotation, and order follow-up support

We understand that customers buying high-purity materials often need more than a simple price. They need clear specifications, reliable packaging, and communication before shipment. Our team can help confirm product details before order placement to reduce misunderstanding and improve purchasing efficiency.

📌 Important Notes Before Ordering

Before ordering Indium Granules, customers should confirm several key details. This helps us provide a more accurate quotation and ensures the supplied material matches the intended use.

Please confirm:

Required Information	Example
Required Purity	99.9%, 99.99%, 99.995%, 99.999%
Particle Size	Irregular granules, pellets, custom size
Order Quantity	50g, 100g, 1kg, bulk quantity
Application	Alloying, evaporation, ITO material, research
Documentation	COA, SDS, specification sheet, photos
Destination Country	For shipping method and export documents

Because indium is a relatively valuable metal, the price may change with raw material market conditions, purity grade, and quantity. Please contact us for the latest quotation before placing an order.

💡 Application Selection Guide

Different applications may require different purity grades and packaging methods. The table below can help customers choose a suitable specification.

Application	Suggested Purity	Recommended Form
General alloying	99.9% or 99.99%	Granules or cut pieces
Laboratory research	99.99% or higher	Small granules or pellets
Vacuum evaporation	99.99% / 99.995% / 99.999%	Clean pellets or granules
ITO-related material preparation	99.99% or higher	High-purity granules
Electronics material research	99.99% or higher	Sealed high-purity package
Thermal interface feedstock	99.9% or 99.99%	Granules or pieces
Low-melting alloy development	According to formula	Granules for accurate weighing

This table is for general reference only. The final material selection should be based on the customer’s actual process, equipment, purity requirements, and performance expectations.

🔍 Indium Granules vs. Indium Pellets vs. Indium Shot

Different suppliers may use different names for similar indium particle products. Customers may see terms such as Indium Granules, indium pellets, indium shot, indium pieces, or indium metal particles. These names are related but not always exactly the same.

Term	Meaning
Indium Granules	General term for granular indium particles
Indium Pellets	Usually more regular pellet-like particles
Indium Shot	Small shot-like indium particles
Indium Pieces	Cut pieces or irregular small blocks
Indium Metal Particles	Broad description of small indium material

For our product page, Indium Granules is used as the main term because it covers the most common supply forms and matches the product category of high-purity metal granules. If customers need more regular pellet shapes, we can discuss whether suitable pellet-like material is available.

🧪 Quality Appearance

The appearance of Indium Granules may be different from hard metal granules. Indium has a bright silvery-white metallic color, but because it is soft, the surface can show small marks, pressure lines, or irregular deformation. These are normal for indium and usually do not affect use.

Customers should not judge indium only by whether every particle is perfectly round or uniform. For many applications, purity, cleanliness, weight accuracy, and particle size range are more important than perfect shape.

If the customer requires a specific appearance for display, educational kits, or product photography, please inform us before ordering. We can select more suitable material and provide photos before shipment when possible.

🧲 Related Products

Customers interested in Indium Granules may also need other high-purity metal materials. We can also discuss supply options for related products according to your application.

Related Product	Common Use
Tin Granules	Alloying, solder material, research
Bismuth Granules	Low-melting alloys, laboratory use
Gallium Metal	Low-melting metal systems, research
Zinc Granules	Alloying and evaporation materials
Nickel Granules	Electrodes, alloying, coating materials
Titanium Granules	Melting, alloy additives, research
Molybdenum Granules	Vacuum melting, alloy additions
Tungsten Granules	High-density materials, alloying

For customers developing low-melting alloy systems, indium may be used together with tin, bismuth, gallium, and other metals. Please provide your formula or target application so we can help confirm suitable raw materials.

📞 Contact Us for Custom Indium Granules

If you are looking for Indium Granules with stable purity, flexible particle size, and export-ready packaging, please contact Shaanxi Nickel Titanium Copper Metal Co., Ltd. with your required specification and quantity. We can provide quotation, product photos, packing details, and available documentation according to your request.

📧 Email: sales@niticu.com
📞 Phone / WhatsApp / WeChat: +86 13335373172
🏭 Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi, China
🌐 Website: https://niticu.com

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