Tungsten Electrode for TIG Welding

Thoriated tungsten Electrodes (WT Electrode) : High current carrying capacity, large depth of weld, reliable partner for high strength welding.

Trade mark ThO2 Content Color sign
WT10 0.90 – 1.20 Primary
WT20 1.80 – 2.20 Redc

Your ideal choice of Tungsten Electrode for TIG welding

In the quest for the perfect weld, every detail counts. Have you ever been plagued by an arc that is difficult to control? Tired of replacing your tungsten electrodes so often that they don’t last? Now, let our tungsten electrodes for TIG welding be the perfect companion for your exquisite skills, lighting up every weld with precision and fusing together superior quality that will last for years to come!

We know that a reliable tool is the cornerstone of success for welders pursuing excellence, and FOTMA tungsten electrodes are made from carefully selected high-purity raw materials, advanced manufacturing processes, and strict quality control, all aimed at achieving the stable and powerful arc in your hands.

Say goodbye to arc starting problems and hello to a smooth welding experience! Our special formula and fine surface treatment ensure that the tungsten electrode can instantly stimulate a stable arc, allowing you to weld in a smooth flow.

Enhance your welding efficiency and say goodbye to frequent changes! Excellent heat resistance and corrosion resistance give our tungsten electrodes a longer service life, effectively reducing the frequency of replacement, allowing you to focus more on the torch in your hands, dramatically improving welding efficiency and saving valuable time.

Carefully selected to meet your different needs! We offer many types of tungsten electrodes, such as:

Cerium tungsten electrode (WC Electrode): Excellent arc starting performance and arc stabilization, especially suitable for low-current welding and thin plate welding, it is your choice for fine welding.

Trade mark Added impurity Impurity
quantity
Other
impurities
Tungsten Electric
discharged
power
Color
sign
WC20 CeO2 1.80 – 2.20% <0.20% The rest 2.7 – 2.8 Grey

Thoriated tungsten Electrodes (WT Electrode) : High current carrying capacity, large depth of weld, reliable partner for high strength welding.

Trade mark ThO2 Content Color sign
WT10 0.90 – 1.20 Primary
WT20 1.80 – 2.20 Red
WT30 2.80 – 3.20 Purple
WT40 3.80 – 4.20 Orange Primary

Lanthanated Tungsten Electrodes (WL Electrode): Excellent performance under a wide range of current conditions, excellent all-round performance, ideal for your all-round welding.

Trade mark Added
impurity
Impurity
quantity
Other
impurities
Tungsten Electric
discharged
power
Color
sign
WL10 La2O3 0.80 – 1.20% <0.20% The rest 2.6 – 2.7 Black
WL15 La2O3 1.30 – 1.70% <0.20% The rest 2.8 – 3.0 Yellow
WL20 La2O3 1.80 – 2.20% <0.20% The rest 2.8 – 3.2 Sky blue

Zirconiated Tungsten Electrodes: good performance in AC welding, especially under high load current.

Trade mark Added
impurity
Impurity quantity Other
impurities
Tungsten Electric
discharged
power
Color sign
WZ3 ZrO2 0.20 – 0.40% <0.20% The rest 2.5 – 3.0 Brown
WZ8 ZrO2 0.70 – 0.90% <0.20% The rest 2.5 – 3.0 White

Pure Tungsten Electrodes
Suitable for welding under alternating current;
Yttrium Tungsten Electrodes
Mainly applied in military and aviation industry with narrow arc beam, high compressing strength, highest welding penetration at medium and high current;
Composite Tungsten Electrodes: Their performances can be much improved by adding two or more rare Earth oxides which are mutually complementary.

Electrode Name Trade mark Added impurity Impurity quantity Other impurities Tungsten Electric discharged power Color sign
Pure Tungsten Electrode WP <0.20% The rest 4.5 Green
Yttrium-Tungsten Electrode WY20 YO2 1.80 – 2.20% <0.20% The rest 2.0 – 3.9 Blue
Composite Electrode WRex ReOx 1.00 – 4.00% <0.20% The rest 2.45 – 3.1

Our tungsten electrodes are more than just a piece of welding consumables, they are a powerful support for your relentless pursuit of welding excellence!

By choosing FOTMA tungsten electrode for TIG welding, you will get:

Excellent arc initiation performance, bidding farewell to the tedious preparation before welding.

Extremely stable arc ensures the smoothness and consistency of the weld seam.

Longer service life, reduced replacement frequency, and lower costs.

Lower spatter, improve welding quality, and reduce post-processing work.

Accurate ingredient ratios and strict quality control ensure excellent performance of each electrode.

Don’t let the ineffectual tungsten electrode drag down your skills anymore! Choose our tungsten electrode for argon arc welding now and experience unprecedented welding smoothness and excellent quality! Make every welding a perfect showcase of your craftsmanship!

 

Product Certifications

Our Tungsten Electrode for TIG Welding are manufactured in accordance with international quality standards to ensure safety, reliability, and performance. The following certifications apply to this product:

ISO 9001:2015 & SGSQuality Management System certified

Certificates of Fotma

Certification documents are available upon request. To view additional certifications, please contact us.

Trusted by Global Professionals – Real Customers. Real Results.

  • Aerospace | Thomas Mitchell (USA)

How an aerospace procurement manager sourced 99.97% pure tungsten rods with custom specs and received delivery in half the expected lead time… Read Full Case Study

  • Automotive | Marco Rossi (Italy)

How a car modification expert used custom CNC-machined tungsten alloy weights to fine-tune a vintage sports car’s handling—just in time for a major auto show… Read Full Case Study

  • Electronics | Dr. Elena Carter (Canada)

How a semiconductor engineer replaced aluminum with MoCu heat sinks, improving thermal performance by 20°C while meeting aerospace-grade standards…  Read Full Case Study

Need Custom Sizes or Bulk Orders?

Contact our engineering team for expert consultation on Tungsten Electrode for TIG Welding tailored to your specific requirements. We offer OEM and ODM services with fast global shipping.

Frequently Asked Questions

Q1: What types of tungsten electrodes does FOTMA offer for TIG welding?

A1: FOTMA provides several types of tungsten electrodes designed for various TIG welding applications, including:

  • WP (Pure Tungsten, Green)
  • WT10 (1% Thoriated, Yellow)
  • WT20 (2% Thoriated, Red)
  • WL10 / WL15 / WL20 (Lanthanated, Black, Gold, Blue)
  • WC20 (Ceriated, Gray)

Each type offers different arc stability, current-carrying capacity, and suitability for AC or DC welding.

Q2: What are the advantages of using thoriated tungsten electrodes (WT series)?

A2: Thoriated electrodes such as WT20 (2% ThO₂) provide:

  • High current-carrying capacity
  • Deeper weld penetration
  • Excellent arc starting stability

They are widely used for DC welding of carbon steel, stainless steel, and nickel alloys.

Q3: Are there color codes to identify each tungsten electrode type?

A3: Yes, the electrodes are marked by internationally recognized color codes:

  • WT10: Yellow (1% ThO₂)
  • WT20: Red (2% ThO₂)
  • WL20: Blue (2% La₂O₃)
  • WC20: Gray (2% CeO₂)

These help users quickly select the appropriate electrode for their welding application.

Q4: What sizes and shapes are available?

A4: FOTMA supplies tungsten electrodes in a variety of diameters and lengths, such as 1.0 mm, 1.6 mm, 2.4 mm, 3.2 mm, etc., with ground, pointed, or flat tips. Custom machining or packaging can be provided on request.

Q5: Are these electrodes suitable for both AC and DC welding?

A5:

  • Pure tungsten (WP) is recommended for AC welding, especially aluminum and magnesium.
  • Thoriated, ceriated, and lanthanated electrodes are better suited for DC welding of ferrous metals and offer better arc performance and longevity.

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