Copper Tungsten Electrodes for Electrical Discharge Machining (EDM) and Electrochemical Machining (ECM)

• Type: Cu (Copper/Copper-Alloy Welding Electrode)
• Material: Copper Tungsten A10W, A30W
• Diameter: Customized or by Drawing
• Length: Customized or by Drawing
• Welding Core Type: Alloy Structual Tungsten
• Electrode Coating Type: Tungsten Alloy
• Model NO.: CT002
• Composition: 65%W35%Cu, 70%W30%Cu, 75%W25%Cu , 80%W20%Cu Copper
• Standard: Rwma Class
• Shapes: Wire, Rod, Bar, Strip, Foil, Block, Plate, Ring,
• Transport Package: Export Wooden Cases
• Specification: Standard sizes or customized
• Trademark: Kefeng
• Origin: China
• HS Code: 81019990
• Production Capacity: 3000kgs Per Month

Product Description

Copper Tungsten Alloys are tungsten based composite materials that are a strong refractory metal processed by a stringently controlled process including pressing, sintering and infiltrating with copper. The properties of tungsten composites are related to the copper to tungsten ratio.  If the tungsten content improves, the electric arc and wear resistance will increase while the thermal and electrical conductivity decreases.  Copper tungsten composites have high arc resistance combined with good electrical conductivity and high thermal conductivity and low thermal expansion.
Kefeng offers: 65%W-35%Cu, 70%W-30%Cu, 75%W-25%Cu ,80%W-20%Cu material
Our standard: accordance with ASTM B702
We, Kefeng Powder Metallurgy Co., manufactures and supplies DRC Conflict Free material only.

We produce various sizes, shapes and finished parts in forms as wire, rod, bar, sheet, ,strip, foil, sheet, plate, tubing, blanks, semi-finished and custom finished parts or according with customer's drawing paper.
Certification: Corporation is ISO9001 Certified, SGS approved and has been manufacturing the highest quality tungsten alloy metals for over 25 years.

Characteristics and features
The Copper tungsten material products are highly resistant to heat, electric arc, wear and deformation at high temperature welding, flash butt and spot welding.  They also have excellent electrical and thermal conductivity.

1. Low thermal expansion
2. High wear resistance
3. Low consumption
4. High arc resistance
5. High thermal and electrical conductivity

Application
Due to their unique properties, tungsten based composites are widely used where the combination of goods electrical and thermal conductivity and low thermal deformation is required.  Their mechanical and physical properties make them particularly suitable in electric resistance welding as electrical contacts or heat sinks and in electrodes for electrical discharge machining (EDM) and electrochemical machining (ECM)




Characteristics and features
The Copper tungsten material products are highly resistant to heat, electric arc, wear and deformation at high temperature welding, flash butt and spot welding.  They also have excellent electrical and thermal conductivity.  These metal composite materials produce dense hard metals with low thermal expansion, good thermal and electrical conductivity, excellent arc resistance, superior wear resistance and strength at elevated temperatures.

1. Low thermal expansion
2. High wear resistance
3. Low consumption
4. High arc resistance
5. High thermal and electrical conductivity

Application
Due to their unique properties, tungsten based composites are widely used where the combination of goods electrical and thermal conductivity and low thermal deformation is required.  Their mechanical and physical properties make them particularly suitable in electric resistance welding as electrical contacts or heat sinks and in electrodes for electrical discharge machining (EDM) and electrochemical machining (ECM), Kefeng's Copper Tungsten typical applications as followings:
 

1. High temperature furnace components, Heat Sinks
2. Edm electrodes, High-voltage Discharge Tubes
3. High voltage arc contacts, electrical contacts
4. Vacuum contacts, Electrodes for resistance welding and spark erosion
5. Seam welding bearing inserts, leaders
6. Balance weights, Spreaders, microwave carriers
7. Hermetic package bases and housings
8. Ceramic substrate carriers, medical components
9. Heating elements, dies for castings, high speed tools
10. Flash and Butt welding die inserts and facing
11. Projection welding electrodes

Xi'an Kefeng Powder Metallurgy can produce below grades of Copper Tungsten metal composite materials
To meet your specific needs.  Kefeng can supply various sizes and compositions for a timely 15-30 days
Shipping or we can offer custom grades, shapes and finished parts with a short lead time.  These metal composite materials produce dense hard metals with low thermal expansion, good thermal and electrical conductivity, excellent arc resistance, superior wear resistance and strength at elevated temperatures.

Technical parameters

Materials	Wt% Tungsten Content	Wt% Copper Content	Density (g/cc)	Electrical Conductivity (%IACS)	Hardness (HB)
W65Cu35	65	Balance	13.30	44	88
W70Cu30	70	Balance	13.80	42	88
W75Cu25	75	Balance	14.50	38	94
W80Cu20	80	Balance	15.15	34	98

Technical parametersNote: The values are typical and not to be used for specifications.




For three decades Kefeng Powder Metallurgy has pioneered and produced the best tungsten alloy metal solutions for the world's products, applications and industries.

-Our products are subjected to rigorous physical testing, including density, tensile, yield strength,conductivity, elongation and hardness.

-Our products are identified at all stages of the production process and are thoroughly analized and checked before delivery.

-Our products can be supplied with full verification in accordance with specifications,whatever
Chemically, mechanically or physically.

At Kefeng Metallurgy,our expert and equipment are committed to providing the best tungsten alloy
Refractory metal solution that performs our customer's requirements and improving overall quality.