What is 2 Ceriated tungsten used for?
What is 2 Ceriated tungsten used for?
Non-Radioactive Tungsten Materials The first one, introduced in the 1980’s, is most commonly available as 2% ceriated tungsten. This material is commonly used for lower amperage DC welding applications. In fact, it holds a very high market share in sales for the orbital welding process.
What is 2% tungsten?
Blue Tungsten Blue is made with tungsten and lanthanum with lanthanum being at 2%, giving it the name 2% lanthanated tungsten. 2% (blue) can be used with both AC and DC. It has a simple arc for startup and warming up and can be used with both AC and DC with no issues.
Is Ceriated tungsten radioactive?
Thoriated tungsten electrodes contain thorium, a radioactive material that can pose health and environmental risks at elevated exposure levels.
What is a EWTh 2 electrode?
Thus, EWTh-2 is a thoriated tungsten electrode containing nominally 2 weight-percent thoria.
What is the best tungsten for mild steel?
2% Thoriated Tungsten Electrode. 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 tungsten is best for stainless?
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 is Ceriated tungsten?
Orange
Ceriated (Color Code: Orange) With its excellent arc starts at low amperages, ceriated tungsten has become popular in such applications as orbital tube and pipe fabricating, thin sheet metal work, and jobs involving small and delicate parts.
Can you use Ceriated tungsten for aluminum?
If you are AC TIG welding aluminum for the first time we would suggest using a 2% ceriated in 3/32. Two solid options include Blue Demon or Weldcraft. Ceriated is the most popular choice due to the easy arc start at low amperages.
Is tungsten poisonous?
Tungsten has been the subject of numerous in vivo experimental and in vitro studies in view of determining its metabolic and toxicity profile. However, tungsten and its compounds are not considered very toxic for humans. Most existing human toxicology information comes from chronic occupational exposure.
Do tungsten electrodes go bad?
A tungsten may fail in a single weld, or run 700+ cycles. One example of what can happen when an electrode goes bad is the ‘roll back’. The weld may start normally, but part way through the arc does not follow the seam between the two pieces, and the edges do not join, but appear to roll back from each other.
What is a tungsten electrode?
Tungsten electrodes are used when arc welding with the Tungsten Inert gas (TIG) process or when plasma welding. A tungsten electrode is used because it can withstand very high temperatures with minimal melting or erosion. Electrodes are made by powder metallurgy and are formed to size after sintering.
Can you use pure tungsten to weld stainless steel?
Why use green, pure tungsten electrodes? They work well on AC sine wave welding and form a solid balled tip that results in a stable arc. 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 are 2% ceriated electrodes used for?
Our 2% Ceriated (Grey) Electrodes are popular on Amazon for their reliable arc-striking, high arc quality, and low burn-off rate while adhering to ANSI and AWS standards. 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 are the applications of ceriated tungsten?
With its excellent arc starts at low amperages, ceriated tungsten has become popular in such applications as orbital tube and pipe fabricating, thin sheet metal work, and jobs involving small and delicate parts.
Can tungsten be used as a DC welding electrode?
It is not typically used for DC welding because it does not provide the strong arc starts associated with thoriated or ceriated electrodes. Thoriated tungsten electrodes (AWS classification EWTh-2) contain a minimum of 97.30 percent tungsten and 1.70 to 2.20 percent thorium and are called 2 percent thoriated.
What are rare-earth tungsten electrodes made of?
Rare-earth tungsten electrodes (AWS classification EWG) contain unspecified additives of rare-earth oxides or hybrid combinations of different oxides, but manufacturers are required to identify each additive and its percentage on the package.
