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Hubei Fotma Machinery Co., Ltd. Tungsten, Molybdenum, Titanium, Tungsten Carbide and Investment Casting Products
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Machined Ground AgW CuW Silver Tungsten Alloy For HV Equipment

Hubei Fotma Machinery Co., Ltd.
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Machined Ground AgW CuW Silver Tungsten Alloy For HV Equipment

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Brand Name : FOTMA

Model Number : WCAg

Certification : ISO9001:2008

Place of Origin : P.R. China

MOQ : 1 pcs

Price : Negotiable

Payment Terms : T/T, L/C, Western Union, PayPal

Supply Ability : 10000pcs/month

Delivery Time : 20-25 days after deposit

Packaging Details : Paper cartons or plywood boxes

Tungsten Content : 30% - 85%

Silver Content : 15% - 70%

Sizes : Customized

Density : 12 - 17g/cm3

Surface : Machined, Ground

Tolerance : +/-0.05mm

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AgW Tungsten Copper Alloy Silver Tungsten Alloy Customized Parts For HV Equipment
 
Description:
 
1.Silver tungsten alloys, also known as silver tungsten carbides, are used in industrial and domestic circuit breaker applications where good weld and erosion resistance is important.
 
2.The higher silver grades have higher conductivity, and the higher tungsten grades have greater erosion and weld resistance.
 
3.High contact pressures are required to ensure effective operation if used for frequent high current switching, and mixed oxides of silver tungsten can be formed to give high contact resistance.
 
4.Silver tungsten alloy has proven to be an excellent material because of its ability to resist contact "sticking" or welding and also because of its resistance to oxidation.
 
5.We produces AgWC materials ranging from 35% silver and 65% tungsten carbide to 60% silver and 40% tungsten carbide.
 
6.In some instances, it is advantageous to have a combination of tungsten and tungsten carbide mixed with silver.
 
Application of Silver Tungsten:
 
Silver tungsten alloys contain between 15-70% silver.
 
They are mainly used for electrical contacts—generally heavy-duty devices subject to high current,
such as moving contact for circuit-breakers between 100 and 800 A, earth leakage breakers, moving contact for air circuit breaker between 1000 and 10000 A, thermostats, miniature circuit breakers, arcing contact for large size contactors, moulded-case circuit breakers and heavy-load AC/DC contactors, etc.
 
Performance of Silver Tungsten Alloy:
 

Name

Chemical Symbol

Chemical Composition(%)

Physical and Mechanical Properties

Ag

Impurity

W

Density/
(g/cm3)

Hardness
HB

Resistivity
(μΩ·cm)

Silver-tungsten (30)

AgW (30)

70±1.5

≤0.5

Allowance

11.75

75

2.3

Silver-tungsten (40)

AgW (40)

60±1.5

≤0.5

Allowance

12.4

85

2.6

Silver-tungsten (50)

AgW (50)

50±2.0

≤0.5

Allowance

13.15

105

3

Silver-tungsten (55)

AgW (55)

45±2.0

≤0.5

Allowance

13.55

115

3.2

Silver-tungsten (60)

AgW (60)

40±2.0

≤0.5

Allowance

14

125

3.4

Silver-tungsten (65)

AgW (65)

35±2.0

≤0.5

Allowance

14.5

135

3.6

Silver-tungsten (70)

AgW (70)

30±2.0

≤0.5

Allowance

14.9

150

3.8

Silver-tungsten (75)

AgW (75)

25±2.0

≤0.5

Allowance

15.4

165

4.2

Silver-tungsten (80)

AgW (80)

20±2.0

≤0.5

Allowance

16.1

180

4.6

Silver-tungsten (85)

AgW (85)

15±2.0

≤0.5

Allowance

16.7

195

5

 
Technical Parameters of Silver Tungsten Carbide:
 

Material Nominal Composition

Density g/cm³

Hardness HV10

Electrical Conductivity   %I.A.C.S

m/ mm²

WCAg 35

13.0

170

35

20

WCAg 50

12.2

150

39

22

WCAg 60

11.7

140

42

24

 
Picture show:
 
Machined Ground AgW CuW Silver Tungsten Alloy For HV Equipment


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