erosion-resistant copper tungsten electrode

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Resistance Welding Electrode is the core component in resistance welding systems, directly affecting weld consistency, strength, and production efficiency. EAA specializes in custom resistance welding electrodes engineered for stainless steel, carbon steel, nickel alloys, and galvanized materials under high-frequency industrial operation. By selecting optimized copper alloys, tungsten-based composites, and precision CNC machining, our electrodes deliver stable current transmission, excellent thermal conductivity, and extended service life. They are widely used in automotive manufacturing, home appliances, metal fabrication, and automated production lines where repeatable weld quality is critical.

High-Phosphorus Copper Electrode

(Imported)

Main Parameters

Density g/cm3 (8.8)

Hardness HB30 (320~370)

Conductivity IACS% (26)

Product Features

Has extremely high hardness,so it can transmit very high welding mechanical pressure. Suitable for resistance welding and flash butt welding applications.

Chromium Zirconium Copper Electrode

(Imported)

Main Parameters

Density g/cm³ (8.8)

Hardness HRB (73~80)

Conductivity IACS% (80)

Softening Temperature >500°C

Product Features

Welds carbon steel materials with fewer welding sparks and high conductivity. Professional versions are available for import,ensuring stable discharge and reliable quality.

Aluminum Oxide Dispersed Copper Electrode

(Imported/Domestic)

Main Parameters

Density g/cm3 (8.9)

Hardness HRB (73~84)

Conductivity IACS% (82~92)

Softening Temperature >900℃

Product Features

Welds nickel plates,plated nickel sheets,stainless steel materials with fewer welding sparks. The electrode has excellent thermal conductivity. We can provide imported and domestic types according to different requirements.

Special Nickel-Zirconium Copper Electrode

(Imported)

Main Parameters

Density g/cm3 (8.8)

Hardness HB30 (210~250)

Conductivity IACS% (69)

Product Features

Suitable for welding high-strength,high-resistance metals such as stainless steel and heat-resistant steels.

Special Nickel-Phosphorus Copper Electrode

(Imported)

Main Parameters

Density g/cm3 (8.8)

Hardness HB30 (150~180)

Conductivity IACS% (60)

Product Features

Has excellent elasticity and can be used as an electrode clamp rod,chuck,etc.

Lanthanum Tungsten Electrode

(Imported/Domestic)

Main Parameters

La2O3content:2%

Tungsten

Content>97%

Product Features

Excellent thermal shock resistance and repeatability in short-cycle welding. Non-polluting and radiation-free.

Pure Tungsten Electrode

(Imported/Domestic)

Main Parameters

Purity >99.95%

Density g/cm3(19.2)

Hardness HRV (420)

Conductivity IACS% (29)

Product Features

Generates resistive heat during electrification to regulate welding thermal balance,suitable for high-conductivity metals like copper alloys. Imported and domestic options are available for diverse requirements.

Pure Molybdenum Electrode

(Imported/Domestic)

Main Parameters

Purity >99.95%

Density g/cm3(10.2)

Hardness HRV (150)

Product Features

Melting point:2620°C;maintains superior heat resistance at 1900°C. Features high melting point, low resistivity, minimal vapor pressure,high conductivity,and low thermal expansion coefficient.

Tungsten Copper Electrode WCu

Tungsten copper electrode is a composite metal of tungsten and copper, combining the many excellent characteristics of metallic tungsten and copper. Among these, tungsten has a high melting point (tungsten's melting point is 3410°C, while copper's melting point is 1083°C), high density (tungsten's density is 19.30g/cm³, and copper's density is 8.9g/cm³); copper has superior thermal conductivity, and the tungsten-copper alloy (composition generally ranges from WCu10 to WCu50).

It is resistant to high temperatures, has high strength, is resistant to electric arc erosion, has high density, moderate conductivity, and thermal conductivity. The mechanical and physical properties of tungsten copper change with the increase in copper content; conductivity and thermal conductivity increase accordingly; conversely, hardness, strength, and wear resistance increase with the increase in tungsten content. The specific application determines the choice of material.

Customized Contact

WCu90 (WCu10) Density: 17g/cm³

When high-heat welding of copper sheets and copper pieces is required, it can replace pure tungsten electrodes. It has high heat generation and can easily process more complex shapes.

WCu80 (WCu20) Density: 15.5g/cm³

The most commonly used tungsten-copper ratio, with stable composition and high heat generation, making the electrode durable. It is widely used in the welding of thin copper sheets.

WCu70 (WCu30) Density: 13.7g/cm³

The most commonly used tungsten-copper ratio, with slightly higher conductivity than WCu80, stable composition, and moderate heat generation. The electrode is durable and often replaces chromiumzirconium copper electrodes to improve electrode life and reduce electrode maintenance time.

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WCu90 (WCu10) Density: 17g/cm³

WCu80 (WCu20) Density: 15.5g/cm³

WCu70 (WCu30) Density: 13.7g/cm³

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