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The Daily Insight

What color tungsten do you use for steel

Author

John Thompson

Updated on April 25, 2026

The 2% thoriated (color code red) is an all-purpose tungsten electrode and it’s recommended for welding mild steel because they work well on lower temperatures, which is what you need if you don’t want the steel to warp.

What color tungsten is best for steel?

The 2% thoriated (color code red) is an all-purpose tungsten electrode and it’s recommended for welding mild steel because they work well on lower temperatures, which is what you need if you don’t want the steel to warp.

What color tungsten is for stainless steel?

What color Tungsten should be used for stainless steel? The thoriated red electrode is ideal for stainless steel welds. It provides the optimal heat generation, bead formation, and weld penetration to give smoother welds.

What color tungsten is for what?

The main colors/varieties of TIG electrodes and their American Welding Society abbreviation are as follows: Green (EWP) = Pure Tungsten, Orange (EWCe-2) = 2% Ceriated, Red (EWTh-2) = 2% Thoriated, Gold (EWLa-1.5) = 1.5% Lanthanated, Brown (EWZr-1) = 1% Zirconiated.

Which tungsten is best for stainless steel?

Ceriated (Color Code: Orange) Like thorium, it is best used to weld carbon steel, stainless steel, nickel alloys, and titanium, and in some cases it can replace 2 percent thoriated electrodes. Ceriated tungsten has slightly different electrical characteristics than thorium, but most welders can’t tell the difference.

What is purple tip tungsten for?

This rare earth tungsten offers excellent ignition characteristics and consistent welding properties. They are universal and suitable for all applications in the whole range of AC and DC welding of non-alloyed and high-alloyed steel, aluminium, titanium, nickel, copper and magnesium alloys.

What is the purple tungsten for?

Tungsten electrodes – Purple is the new red In some places they are still considered the best solution for welding with direct current of high-alloy and stainless steels. … High current carrying capacity. Suitable for direct and alternating current welding. Excellent ignition and re-ignition properties.

What are the colors of tungsten?

Identification codeWeight of oxide in %ColourWT 100.80 – 1.20YellowWT 201.70 – 2.20RedWT 302.80 – 3.20PurpleWT 403.80 – 4.20Orange

What is yellow tungsten used for?

1.5% Lanthanated (Gold) The gold lanthanated tungsten electrodes contain less lanthanum than their blue counterparts and are best used in DC applications. They are best for welds with titanium alloys, copper alloys, nickel alloys, and non-corroding steel.

What Tungsten is blue?

The EWLa-2 tungsten electrode is color-coded with a blue band. It is known for its excellent arc starting ability, excellent current carrying ability, and can withstand many arc cycles.

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What polarity for TIG welding stainless steel?

What is the correct Polarity when TIG welding? Polarity refers to the direction of current flow when welding. All DC TIG welding (steel, stainless, etc) is done on DC- polarity where the TIG torch is connected to the negative (-) terminal and the earth lead to the positive (+) terminal.

Which tungsten electrodes are efficient for welding on steels?

Orange Ceriated TIG Welding Electrodes contain about 2% percent ceriated and are ideal for DC welding and lower current processes. Since it can weld carbon steel, stainless steel, nickel alloys, and titanium, some welders have found that it works well as a replacement for thoriated electrodes.

What is E3 tungsten?

E3 Tungsten are electrodes with rare earth mixed oxides. Compared to thoriated electrodes, E3 is less harmful to the environment and not radioactive. E3 Electrode Features and Benefits: Excellent ignition and consistent welding properties. … Reliable and usable for automated welding.

What is GREY TIG tungsten?

Grey electrodes perform well in DC applications and are great for welding titanium, copper, magnesium, aluminum, and nickel alloys, as well as non-corroding and stainless steels.

What is the best tungsten for mild steel?

2% Thoriated Tungsten Electrodes – Red Tipped Containing 1.7% to 2.2% thorium oxide, this radioactive tungsten electrode works well with mild steel, stainless steel and other non-corroding metals. Red-tipped tungsten electrodes fall in the mid-range for amperage and erosion, as well as spitting tendencies.

What is white tungsten?

Tungsten by itself is a grayish powdery metal. It cannot be made into a ring unless it is combined with carbon, forming tungsten carbide. … They can be plated with platinum group metals to make them have the same color as platinum. These types of tungsten rings are called white tungsten rings.

What color is natural tungsten?

Besides the extreme hardness of Tungsten rings their natural color is a silvery gray, so when the ring is bumped or scraped against a surface, there is no other pigment that can rub off.

What type of tungsten is yellow?

Thoriated (EWTh-1 Yellow Stripe Electrode Classifications: Yellow Stripe; and EWTh-2 Electrode Classifications: Red Stripe) Thoriated tungsten contains thorium oxide (ThO2 or thoria), and it is the most commonly used tungsten in America.

Does white tungsten look like platinum?

White tungsten does appear slightly whiter than platinum, but the difference is minimal. Note: The color of rings can change slightly depending on its surroundings and lighting because metals reflect what is around them.

Do you TIG with AC or DC?

DC is used for TIG welding Mild Steel/Stainless material and AC would be used for welding Aluminium. The TIG welding process has three options of welding current based upon the type of connection. Each method of connection has both advantages and disadvantages.

Do you reverse polarity when welding stainless steel?

FCAW – Flux cored stainless steel welding wire generally uses direct current, reverse polarity (electrode positive). This current type provides better base metal penetration.

What color tip does pure tungsten have?

Electrode materialColor codePure tungstenGreenThoriatedRedCeriatedOrangeLanthanatedGold

What color is E3 tungsten?

3/32 in E3 (purple) Tungsten for TIG Welding.

What is purple tungsten made of?

Rare Earth (Purple) Electrodes The innovative Rare Earth Blend tungsten electrode contains 98.34% tungsten, 1.5% lanthanum, 0.08% Zirconium, and 0.08% Yttrium. It is the perfect substitute for red thoriated electrodes.

What tungsten is used for aluminum?

Use a pure tungsten or zirconiated tungsten electrode when AC welding aluminum. Don’t use a 2 percent thoriated tungsten electrode. Make sure you use a tungsten electrode large enough in diameter to carry the welding current you plan to use.