Tungsten Silver Alloy

Material: W-Ag Alloy

Reference: HMWW1134

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

Tungsten Silver Alloy is composed of tungsten and silver and made through powder metallurgy method. It exhibits high hardness and excellent resistance to electrical arc erosion, adhesion, and fusion welding. As a leading supplier and manufacturer of premium tungsten products, Heeger Materials leverages advanced technology to deliver high-purity tungsten silver alloy products for wide ranges of applications.

Get a Quote

Or email us at sales@heegermaterials.com.

Tungsten Silver Alloy Data Sheet

Reference:	HMWW1134
Material:	AgW50, AgW55, AgW60, AgW65, AgW70, AgW75, AgW80, or customized
Temper:	Annealed and Unannealed

Tungsten Silver Alloy

Tungsten Silver Alloy, also called silver tungsten alloy, is a durable refractory metal alloy. It belongs to two structural false alloys and is a metal matrix composite material. Due to the large difference between the physical properties of metal silver and tungsten, it can’t be manufactured by melt casting method and is generally obtained by powder metallurgy technology. HM provides high-precision tungsten silver alloy products in various forms, including rods, plates, sheets, bars, tubes, blocks, pellets, wires, and discs, all crafted to ensure exceptional quality and customer satisfaction. We manufacture large, complex parts using isostatic pressure molding technology, while smaller parts are produced through extrusion, molding, and injection molding techniques. Additionally, rods and sheets are fabricated using forging and rolling processes.

Tungsten Silver Alloy Plate
Tungsten Silver Alloy Rod
Tungsten Silver Alloy Bar

Tungsten Silver Alloy Material Composition And Properties

Review the physical and mechanical properties listed below to select the suitable tungsten-silver alloy for your application.

Composites	Nominal Composition (% Weight)	Total Impurities (≤%）	Density (g/cm³, ≥)	Electrical Resistivity (20°C, µΩ•cm, ≤)	Electrical Conductivity (IACS%, ≥)	Hardness (HB, ≥)	Bending Strength (MPa)
AgW50	50 Silver 50 Tungsten	0.5	13.15	3.0	57	105	—
AgW55	45 Silver 55 Tungsten	0.5	13.55	3.2	54	115	—
AgW60	40 Silver 60 Tungsten	0.5	14.00	3.4	51	125	—
AgW65	35 Silver 65 Tungsten	0.5	14.50	3.6	48	135	—
AgW70	30 Silver 70 Tungsten	0.5	14.90	3.8	45	150	657
AgW75	25 Silver 75Tungsten	0.5	15.40	4.2	41	165	686
AgW80	20 Silver 80 Tungsten	0.5	16.10	4.6	37	180	726

Silver Tungsten Carbide Alloy

HM can also supply high-quality silver tungsten carbide alloys. It is prepared by the tungsten carbide skeleton fusion infiltration method, the material is extremely hard, and its contact resistance is slightly higher than that of silver tungsten. It has excellent resistance to fusion welding and arc corrosion. When a high temperature is generated during the arc combustion process, the free carbon contained in WC can slow down the oxidation of tungsten or reduce tungsten, slowing down the overall oxidation of the material, which can effectively improve the antioxidant capacity of the contact and the stability of the electrical properties of the contact under energized state. Silver Tungsten Carbide Alloy is mainly applied in the following fields:

Electrical Field: Silver tungsten carbide alloy can be used as contact materials for circuit breakers and other switching appliances, with resistance to moisture and heat, and corrosion resistance.
Electronic Field: Silver tungsten carbide alloy can be used for manufacturing electronic components and connectors, such as integrated circuit packages and transistor connectors.
Energy Field: Silver tungsten carbide alloy is used as electrode material in solar panels and fuel cells.
Aerospace Field: Silver tungsten carbide alloy can be used to manufacture high-temperature parts of aircraft engines and rocket nozzles.

Ag-WC Alloy Bar

Silver Tungsten Carbide Alloy Specification

Material	Composition (%)			Density (g/m³, ≥)	Electrical Resistivity (μΩ.cm, ≤)	Hardness(HV) (Mpa, ≥)
Material	Ag	WC	C	Density (g/m³, ≥)	Electrical Resistivity (μΩ.cm, ≤)	Hardness(HV) (Mpa, ≥)
AgWC40	60	40	–	11.8-12.1	4.0-3.3	1274-1568
AgWC50	50	50	–	12.2-12.8	4.5-3.7	1372-1666
AgWC60	40	60	–	13.0-13.5	4.0-4.2	1568-1862
AgWC12C3	85	12	3	9.4	3.4	500

Copper Tungsten Carbide Alloy

Copper Tungsten Carbide Alloy is made of high-quality tungsten carbide powder and oxygen-free copper powder by pressing, sintering, and infiltrating. It is characterized by high-temperature resistance, arc abrasion resistance, electrical conductivity, and good thermal conductivity. Copper Tungsten Carbide Alloy is commonly used in the following areas:

Electrical Contact Materials: Because copper tungsten carbide alloys are resistant to arc ablation and highly conductive, they are commonly used as contact materials for high-voltage switches and circuit breakers.
Electrode Materials: Copper tungsten carbide alloy can be used for EDM and resistance welding electrodes.
High-temperature Components: In the aerospace field, copper tungsten carbide alloys are used to manufacture rocket nozzles and high-temperature molds.

Cu-WC Alloy Products

Copper Tungsten Carbide Alloy Specification

Composites	Nominal Composition (% Weight)	Density (g/cm³)	Electrical Resistivity (µΩ·cm)	Thermal Conductivity (W/m-K)	Hardness
CuWC50	50% Copper 50% Tungsten Carbide	11.26	3.83	290	94HRB
CuWC56	44% Copper 56% Tungsten Carbide	11.64	4.10	280	100HRB
CuWC70	30% Copper 70% Tungsten Carbide	12.65	5.75	240	37HRC

Tungsten Silver Alloy Features

High-temperature resistance
Resistant to arc erosion
High strength
High density
Uniform microstructure
Easy cutting and machining

Tungsten Silver Alloy Production Process

Tungsten-silver alloy, similar to the tungsten-copper alloy, is a pseudo-alloy of copper and the refractory metal tungsten and is generally produced using powder metallurgy. Since silver and tungsten are immiscible, the infiltration method is used to achieve bonding between the two materials. After compacting the porous tungsten preform, silver is allowed to infiltrate it, followed by sintering. The material is then machined to achieve the required geometry as specified by the customer. The specific processes are as follows:

Compaction: The porous tungsten preform is compacted.
Infiltration: Silver is allowed to infiltrate the compacted tungsten preform.
Sintering: The infiltrated material is sintered at high temperatures, forming a dense solid.
Annealing: The sintered products undergo annealing to remove internal stresses and improve toughness and ductility.
Machining: Precision machining processes, such as turning, milling, and grinding, are applied to the sintered parts to achieve final dimensions and shapes.
Heat Treatment: The alloy undergoes additional heat treatment to optimize properties such as hardness, strength, or other physical characteristics.
Surface Treatment: If required, surface treatments (such as coating, passivation, etc.) are applied to enhance corrosion resistance, hardness, or other properties.

Tungsten Silver Alloy Machining Service

HM has advanced machining centers equipped with various high-precision processing equipment, enabling us to offer multiple machining services such as turning, milling, grinding, and drilling. Whether for large-scale production or customized small-batch orders, we guarantee high precision and performance to meet customer’s specific requirements. The following are methods we will use during processing:

Isostatic Pressing
Forging
Extrusion
Molding
Injection Molding
Rolling
Electrical Discharge Machining (EDM)
Milling
Turning

Tungsten Silver Alloy Applications

Electrical Contact Materials: Silver-tungsten alloy is widely used in electrical switches, circuit breakers, relays, and contactors due to tungsten’s high melting point, hardness, and stability under high current, pressure, and temperature, ensuring long service life.
Electrode Materials: This alloy is also utilized in electric discharge machining (EDM) electrodes and electrochemical electrodes. Its high melting point, hardness, and excellent electrical conductivity allow stable operation in demanding conditions.
Vacuum Equipment Components: Silver-tungsten alloy is key in manufacturing vacuum circuit breakers, tubes, and electrodes. Its high melting point and corrosion resistance make it ideal for high vacuum environments.
Electronic Devices: It is used in special devices like cathode ray tubes (CRT) and X-ray tubes, thanks to its stability under high currents and temperatures.
Aerospace Devices: In aerospace, the alloy’s high-temperature resistance, wear resistance, and conductivity are essential for engine and missile components.

Tungsten Silver Alloy Packaging

The Tungsten Silver Alloy is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Tungsten Properties

Item	Value
Atomic number	74
Crystal structure	Body centred cubic
Electronic structure	Xe 4f¹⁴ 5d⁴ 6s²
Valences shown	2,3,4,5,6
Atomic weight( amu )	183.85
Thermal neutron absorption cross-section( Barns )	18.5
Photo-electric work function( eV )	4.55
Natural isotope distribution( Mass No./% )	183/ 14.3
Natural isotope distribution( Mass No./% )	182/ 26.3
Natural isotope distribution( Mass No./% )	186/ 28.6
Natural isotope distribution( Mass No./% )	180/ 0.1
Natural isotope distribution( Mass No./% )	184/ 30.7
Atomic radius – Goldschmidt( nm )	0.141
Ionisation potential( No./eV )	1/ 7.98
Ionisation potential( No./eV )	2/ 17.7

Item	Value
Material condition	Annealed (Soft)
Material condition	Un-annealed (Hard)
Poisson’s ratio	0.28
Poisson’s ratio	0.28
Bulk modulus( GPa )	311
Bulk modulus( GPa )	311
Tensile modulus( GPa )	411
Tensile modulus( GPa )	411
Hardness – Vickers( kgf mm⁻² )	360
Hardness – Vickers( kgf mm⁻² )	500
Tensile strength( MPa )	550-620
Tensile strength( MPa )	1920
Yield strength( MPa )	550

Item	Value
Electrical resistivity( µOhmcm )	5.4@20@20°C
Superconductivity critical temperature( K )	0.0154
Temperature coefficient( K⁻¹ )	0.0048@0-100°C
Thermal emf against Pt (cold 0C – hot 100C)( mV )	1.12

Item	Value
Boiling point( °C )	5660
Density( gcm⁻³ )	19.3@20°C

Item	Value
Melting point( °C )	3410
Latent heat of evaporation( J g⁻¹ )	4009
Latent heat of fusion( J g⁻¹ )	192
Specific heat( J K⁻¹ kg⁻¹ )	133@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	173@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	4.5@0-100°C

Download

SAFT DATA SHEET (SDS) – Tungsten Metal

Get A Quote

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

To customize your tungsten silver alloy products, please provide the following details:

Alloy Composition: Specify the alloy composition and ratio.
Density: Specify the density you need
Dimensions ＆ Shape: Provide size and shape requirements.
Tolerance ＆ Precision: Define acceptable tolerances.
Surface Finish: Specify surface treatment (e.g., polished or coating).
Quantity of the products you need
Applications (We can also make recommendations based on your specific needs.)
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 tungsten and tungsten alloy 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 molybdenum materials that are subject to DFARS, please let us know in advance and we will confirm.

At Heeger Materials Inc., 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.

Heeger Materials Inc., established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of tantalum and tantalum alloys. 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.

Enquiry Form

Product*

Name*

Email*

Phone

Country

Quantity*

Your Message

Other Tungsten Products

Heeger Metal provides a wide range of tungsten and tungsten alloy products, from powders to finished components, with customization options available. Known for their outstanding strength, high melting point, and excellent wear and corrosion resistance, these materials are ideal for aerospace, electronics, and industrial applications. Our high-purity tungsten ensures exceptional durability and performance in even the most extreme conditions.