Iridium Wire

Purity: >99.9%

Diameter: Ф0.01-4mm, or customized

Custom sizes and standard sizes in stock
Quick Lead Time
Competitive Price

Iridium Wire is a high-performance material made from a high-purity iridium up to 99.95%, offering excellent high-temperature strength, corrosion resistance, and oxidation resistance. As a leading supplier and manufacturer of premium iridium products, Heeger Metal leverages advanced technology to deliver high-quality iridium wires for various applications.

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Or email us at max@heegermaterials.com.

Iridium Wire Data Sheet

CAS:	7439-88-5
Purity:	>99.9%
Density:	22.4 g/cm³
Melting Point:	2410℃
Boiling Point:	4130℃
Diameter:	Ф0.01-4mm, or customized
Shape:	Straight Wire, Spooled Wire, Coiled Wire, etc.
Temper:	Annealed or Unannealed

Iridium Wire Description

Iridium (Ir) is a dense, corrosion-resistant, and highly durable metal with a high melting point. Iridium Wire is made from high-purity iridium, exhibiting superior high-temperature resistance, corrosion resistance, and conductivity. Additionally, due to its high strength and resistance to oxidation, Iridium wire is primarily used in aerospace, electronics, automotive, and medical devices. Heeger Metal can supply high-quality iridium wires with various specifications and customized solutions to suit industrial and research applications, ensuring optimal performance and cost-effectiveness.

Iridium Wire Chemical Composition

Impurities（≤%）
Pt	Ru	Rh	Pd	Au	Ag	Cu	Fe	Ni
0.02	0.02	0.02	0.01	0.01	0.005	0.005	0.005	0.005
Al	Pb	Mn	Mg	Sn	Si	Zn	Ca
0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005

Iridium and Iridium Alloy Wire Specifications

Product	Wire Diameter
Iridium Wire	0.0024” – 0.236” (0.06 – 6.0 mm)
Iridium Rhodium Wire (Ir/Rh10)	0.008” – 0.028” (0.2 – 0.7 mm)
Platinum Iridium Wire (Pt/Ir10,Pt/Ir20)	0.0017” – 0.236” (0.045 – 6.0 mm)

Iridium Wire Tolerances

Diameter	±10%
Length	+5% / -1%

Iridium Wire Advantages

Excellent corrosion resistance
High melting point
Oxidation resistance
High strength
Excellent conductivity
Chemical inertness

Iridium Wire Applications

Aerospace Industry: Used in spacecraft components, satellite systems, and rocket engines due to its high melting point and resistance to extreme temperatures and harsh environments.
Spark Plugs: Iridium wire is commonly used in spark plugs for internal combustion engines, providing high-performance and longevity under high heat and pressure.
Electronics: Utilized in electrical contacts, connectors, and high-precision components where reliable performance and resistance to oxidation are critical.
Medical Devices: Iridium wire is used in medical equipment that requires high resistance to corrosion, such as in certain implantable devices or precision surgical instruments.
Catalytic Converters: Used in catalytic converters for automotive applications, where their properties help in facilitating chemical reactions at high temperatures.
Thermocouples: Iridium wire is used in thermocouples for measuring high temperatures in various industrial processes, providing accurate temperature readings in extreme conditions.

Iridium Wire Packaging

Iridium Wire is carefully placed in wooden cases or cartons with additional soft materials to support and prevent shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Iridium Properties

Element	Value
Atomic number	77
Crystal structure	Face centred cubic
Electronic structure	Xe 4f¹⁴ 5d⁷ 6s²
Valences shown	3, 4
Atomic weight( amu )	192.22
Thermal neutron absorption cross-section( Barns )	425
Photo-electric work function( eV )	4.6
Natural isotope distribution( Mass No./% )	191/ 37.3
Natural isotope distribution( Mass No./% )	193/ 62.7
Atomic radius – Goldschmidt( nm )	0.135

Element	Value
Material condition	Soft
Material condition	Hard
Poisson’s ratio	0.26
Poisson’s ratio	0.26
Bulk modulus( GPa )	371
Bulk modulus( GPa )	371
Tensile modulus( GPa )	528
Tensile modulus( GPa )	528
Hardness – Vickers( kgf mm⁻² )	650
Hardness – Vickers( kgf mm⁻² )	200-300
Tensile strength( MPa )	550-1100
Tensile strength( MPa )	1200

Element	Value
Electrical resistivity( µOhmcm )	5.1@20@20°C
Superconductivity critical temperature( K )	0.11
Temperature coefficient( K⁻¹ )	0.0045@0-100°C
Thermal emf against Pt (cold 0C – hot 100C)( mV )	0.65

Element	Value
Boiling point( C )	4130
Density( gcm⁻³ )	22.4@20°C

Element	Value
Melting point( C )	2410
Latent heat of evaporation( J g⁻¹ )	3186
Latent heat of fusion( J g⁻¹ )	135
Specific heat( J K⁻¹ kg⁻¹ )	133@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	147@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	6.8@0-100°C

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Company Profile

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We will check and get back to you in 24 hours.

To customize your iridium wire, please provide the following details:

Diameter (for the wire)
Length (Indicate the length you need)
Purity (Specify the purity of material required.)
Form (Straight, coiled, or spooled)
Surface Finish (polished, rough, oxide-coated, etc.)
Quantity of the products you need
Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of iridium products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

DFARS (Defense Federal Acquisition Regulation Supplement) compliance is primarily concerned with the sourcing of materials for defense-related applications in the United States. According to DFARS, certain materials used in defense must be sourced from the United States or qualifying countries.

If you have specific iridium materials that are subject to DFARS, please let us know in advance and we will confirm.

At Heeger Metal, we take this responsibility seriously. We adhere to all applicable laws and regulations, including Section 1502 of the Dodd-Frank Act. Our company operates with a strict code of ethics and is committed to only partnering with suppliers who share our dedication to responsible sourcing. We support the initiatives and programs aimed at promoting “conflict-free” supply chains and work diligently to ensure that our products meet these standards.

Annealed iridium wire has tensile strength of 700-900 MPa, while hard-drawn can reach 1400 MPa.

Iridium wire has higher hardness and melting point than platinum, but is less ductile and more expensive.

Heeger Metal, established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of iridium products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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