Silver Tungsten & Tungsten Silver Alloy

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Sliver Tungsten Alloy

Silver tungsten alloy, also known as tungsten silver alloy, is a combination of tungsten and silver.

It has some awesome properties! Silver gives it high conductivity, thermal conductivity, and a high melting point.
On the other hand, tungsten adds high hardness, resistance to welding, minimal material transfer, and high burning resistance. These two elements come together to create a sintering material called silver tungsten.

But here's the thing, silver and tungsten don't naturally get along. So, we have to use a special method called powder metallurgy to make silver tungsten alloys. If the tungsten content is more than 60%, we use a process called infiltration. Now, the properties of these alloys depend on the ratio of silver to tungsten. If there's more tungsten, the alloy becomes more resistant to electric arcs and wear. However, the thermal and electrical conductivity decreases.

In summary, silver tungsten alloys are a cool mix of silver and tungsten. They have some really useful properties, but their characteristics depend on how much tungsten is in the mix.

Tungsten Silver Alloy Applications

Tungsten silver alloy has many uses. It is often used to make electrodes and welding materials.
For example, it can be used in low-voltage automatic switches, high-voltage circuit breakers, and protection switches.

Specifications of Silver Tungsten Alloy

W-Ag rods, bars, sheets, plates, and tubes of different sizes.

W-Ag electrode and contact.

Silver Tungsten Alloy Properties

Grade	Ag %	Total Impurities % (≤)	W %	Density g/cm3 (≥)	Hardness HRB (≥)	Resistivity μΩ·cm (≤)	Conductivity IACS/% (≥)	Bending Strength Mpa (≥)
AgW30	70±1.5	0.5	Bal.	11.75	75	2.3	75
AgW40	60±1.5	0.5	Bal.	12.4	85	2.6	66
AgW50	50±1.5	0.5	Bal.	13.15	105	3	57
AgW55	45±1.5	0.5	Bal.	13.55	115	3.2	54
AgW60	40±1.5	0.5	Bal.	14	125	3.4	51
AgW65	35±1.5	0.5	Bal.	14.5	135	3.6	48
AgW70	30±1.5	0.5	Bal.	14.9	150	3.8	45	657
AgW75	25±1.5	0.5	Bal.	15.4	165	4.2	41	686
AgW80	20±1.5	0.5	Bal.	16.1	180	4.6	37	726

Process of Silver Tungsten Alloy

Dosing – Mixture powder – Pressing – Sintering – Polishing – Inspection.

Silver Tungsten Electrode

A silver tungsten electrode is commonly used in various industries like engines, electric power, electronics, metallurgy, spaceflight, and aviation. When exposed to air and operating current, it can develop a surface film that increases contact resistance.

In simpler terms, the electrode can form a layer on its surface that makes it harder for electricity to pass through.

Silver WC Alloy Properties

Grade	Ag %	WC %	Density g/cm3 (≥)	Conductivity IACS/% (≥)	Hardness HRB (≥)
AgWC50	50±2	Bal.	12.20	29	85
AgWC40	60±2	Bal.	11.7	34	75
AgWC30	70±2	Bal.	11.2	36	57

Advantages of Silver WC Alloy

● High arc erosion resistance

● Excellent electrical conductivity

● Outstanding contact welding resistance

● Very low chopping current

Typical Silver Tungsten Alloy Products

Silver tungsten plate;

Silver tungsten bar;

Silver tungsten electrode.

Advantage of Tungsten Silver Alloy from AEM

1. High conductivity, high hardness
2. High heat conductivity
3. Wear resistance, resistance to the burning of the arc

Production Technology of Silver Tungsten Alloy

It is manufactured by a process involving pressing, sintering, and infiltrating with the silver under strictly controlled conditions. Tungsten based composites are strong refractory metal materials with superior heat, electric arc, wear and deformation resistance at high-temperature welding, flash butt, and spot welding.

They have excellent electrical and thermal conductivity. The properties of Tungsten composites vary according to the silver-to-tungsten ratio. If the tungsten content improves, the electric arc and wear resistance will increase, and on the other hand, the thermal and electrical conductivity will reduce.

Related Products of Silver Tungsten Alloy

Tungsten Powder	Tungsten Carbide Powder	Tungsten Oxide Powder	Tungsten Copper Alloy	Silver Tungsten Alloy
Tungsten Bar	Tungsten Boat	Tungsten Crucible	Tungsten Electrode	Tungsten Heating Elements
Tungsten Heavy Alloy	Tungsten Plate	Tungsten Rod	Tungsten Sheet	Tungsten Sputtering Target
Tungsten Tube	Tungsten Wire	Tungsten Rhenium Alloy

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Silver Tungsten Alloy