PRODUCTS
Features
|
CAS Number: |
7439-88-5 |
|
Linear Formula: |
Ir |
|
Purity: |
99.9% - 99.999% |
|
Diameter: |
1.0mm - 6.0mm |
|
Thickness: |
0.1mm - 0.5mm |
|
Form: |
Disc |
✅ Product Description
Iridium discs are precision-engineered components fabricated from high-purity iridium metal, known for its exceptional density, corrosion resistance, and stability at extreme temperatures. With purity levels ranging from 99.9% to 99.999%, these discs are used in demanding applications that require unmatched chemical inertness and structural integrity.
As one of the rarest and most corrosion-resistant metals, iridium is ideal for environments where other materials fail - including high-vacuum systems, crucibles, electrical contacts, and aerospace components. These discs are manufactured through high-temperature sintering, forging, and precision machining, ensuring tight tolerances and high-quality surface finishes.
🔹 Features & Properties
📌 High Melting Point: ~2,446°C
📌 Exceptional Corrosion Resistance: Stable in acids, alkalis, and oxidizing environments
📌 Outstanding Hardness & Wear Resistance
📌 High Density: 22.56 g/cm³
📌 Electrical Conductivity: Ideal for contacts and connectors
📌 Surface Finish: Polished or machined to tight tolerances
📌 Low Reactivity: Minimal surface oxidation even at high temperatures
🚀 Applications & Related Industries
✅ Electronics: Used in spark plugs, electrical contacts, and sensor devices
✅ Semiconductor Industry: As evaporation sources, crucible liners, and sputtering targets
✅ Aerospace & Defense: High-performance thermal and mechanical components
✅ Laboratory Equipment: Crucibles and sample holders for high-temperature analysis
✅ Jewelry & Luxury Goods: Due to its rarity and resistance to tarnish
✅ Medical Applications: Components for radiation therapy and implantable devices
📖 Synonyms
Iridium Metal Disc
High-Purity Iridium Round
Iridium Wafer (in micro-scale applications)
⚠ Health & Safety Information
⚠ In bulk metallic form, iridium is stable and non-toxic
⚠ Fine iridium particles should be handled in ventilated areas
⚠ Always wear gloves and protective eyewear when handling
⚠ Dispose of in accordance with local environmental regulations
🏭 Production Method & Equipment
Produced via electron beam melting or vacuum arc melting, followed by precision forging and CNC machining. Discs are annealed under inert atmosphere to relieve stress and ensure uniform microstructure. Final inspection includes dimensional checks, surface finish evaluation, and purity analysis using ICP-MS and XRF.
📐 Size & Customization
Standard Diameter: 1.0mm – 6.0mm
Thickness: 0.1mm – 0.5mm
Custom Dimensions: Available upon request
Surface Finishes: As-machined, polished, or ultra-flat
📋 Certifications & Quality Assurance
Conforms to ASTM, JIS, GB, EN, and BS standards
Supplied with COA, MSDS, dimensional drawings, and purity analysis
Certified under ISO 9001 quality systems
Full traceability for all raw materials and production batches
⏱ Lead Time & MOQ
Lead Time: 5–15 working days depending on quantity and customization
MOQ: 1 piece (standard); custom MOQ for bulk or complex specs
💬 FAQs (Frequently Asked Questions)
Q1: Can iridium discs be used in ultra-high vacuum environments?
A1: Yes, iridium's stability and low outgassing make it ideal for UHV and cleanroom applications.
Q2: What surface finish options are available?
A2: Discs can be supplied as-polished, mirror finish, or fine-ground to meet specific application needs.
Q3: Is there any risk of oxidation at high temperatures?
A3: Iridium remains stable and forms only minimal surface oxide layers even above 1,000°C in air.
🧭 How to Choose the Product
Choose 99.9% purity for general industrial use
Select ≥99.99% or 99.999% for semiconductor, aerospace, or scientific applications
For tight-tolerance requirements, request surface finish and flatness specifications
📏 Product Standards
Conforms to ASTM, JIS, GB, EN, and BS standards
Additional standards such as ISO, MIL-SPEC, or customer-specific drawings can be supported
🧪 Production & Quality Control
Processed in vacuum or inert gas conditions
Checked by SEM, EDS, ICP-MS, and XRD
Flatness, roundness, and dimensional tolerances verified using coordinate measuring machines (CMMs)
📦 Shipping & Delivery Information
Packaging: Vacuum-sealed in anti-static containers or blister packs
Delivery: Air or sea freight with international compliant documents
Export support for RoHS, REACH, and dual-use certifications
🌱 Environmental Impact & Sustainability
Recyclable and valuable metal for circular economy
Low-waste production and recovery of machining scraps
Compliant with global environmental directives
🧼 Maintenance & Care Instructions
Store in dry, clean containers
Avoid contact with halogens or oxidizing agents during storage
Use non-abrasive tools for cleaning or handling
🧩 Differentiation Between Products
Unlike iridium wire or foil, iridium discs offer superior flatness and are tailored for applications requiring precise thickness and shape retention at high temperatures and corrosive environments.
📩 Contact Us
For quotations, technical consultation, or custom fabrication of iridium discs, please contact our expert team.
Chemical Composition
|
Ir(%) |
Impurities |
Ag |
Au |
Be |
Ca |
Cr |
Mg |
Ni |
Pd |
Ru |
Si |
Zn |
Al |
B |
Bi |
Cd |
|
2 |
3 |
- |
6 |
3 |
2 |
3 |
22 |
15 |
4 |
21 |
7 |
<2 |
2 |
<2 |
||
|
Os |
Pt |
Sb |
Sn |
Zr |
As |
Co |
Cu |
Mo |
Pb |
Rh |
Se |
Te |
Cs |
Mn |
||
|
3 |
18 |
11 |
3 |
2 |
<2 |
<2 |
3 |
<2 |
3 |
42 |
5 |
<2 |
- |
<2 |
Chemical Identifiers
|
Linear Formula |
Ir |
|
MDL Number |
MFCD00011062 |
|
EC No. |
231-095-9 |
|
Beilstein/Reaxys No. |
N/A |
|
Pubchem CID |
23924 |
|
SMILES |
[Ir] |
|
InchI Identifier |
InChI=1S/Ir |
|
InchI Key |
GKOZUEZYRPOHIO-UHFFFAOYSA-N |
Iridium Disc Properties (Theoretical)
|
Molecular Weight |
192.22 |
|
Appearance |
Gray |
|
Melting Point |
2410 °C |
|
Boiling Point |
4130 °C |
|
Density |
22.42 g/cm3 |
|
Solubility in H2O |
N/A |
|
Electrical Resistivity |
5.3 microhm-cm @ 20 °C |
|
Electronegativity |
2.2 Paulings |
|
Heat of Fusion |
6.6 Cal/gm mole |
|
Heat of Vaporization |
152 K-cal/gm atom at 4130 °C |
|
Poisson's Ratio |
0.26 |
|
Specific Heat |
0.0317 Cal/g/K @ 25 °C |
|
Tensile Strength |
N/A |
|
Thermal Conductivity |
1.47 W/cm/K @ 298.2 K |
|
Thermal Expansion |
6.4 µm/(m·K) |
|
Vickers Hardness |
1760 MPa |
|
Young's Modulus |
528 GPa |
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