At the moment, a proposal has been placed before the european community commission to drastically increase the severity of legal regulations with respect to the use and disposal of thoriated electrodes. Thorium dioxide is subject to the reporting requirements of section 3 of title iii. Each tungsten electrode has a mechanically ground finish for consistent purity and performance. Safety data sheet te002 tungsten electrodes thoriated boc. Tig welding tungsten electrodes 2% thoriated 116 x 7. Material safety data sheet msds tungsten electrodes conforms to osha hazard communication standard 29cfr 1910. Keeping records of the amount of thoriated tungsten in store, and the numbers of electrodes issued to each welder. Thoriated tungsten electrodes american welding society. Tig welding tungsten electrodes 2% thoriated 332 x 7. Mwp307wth2093 e wth2 2% thoriated 332 x 7 log in to see pricing mwp307wth2125 e wth2 2% thoriated 18 x 7 log in to see pricing 07wth2020 red 2% thoriated 0. Radnor tungsten welding electrodes thoriated msds special notice. Thoriated tungsten contains thorium oxide and is the most commonly used tungsten.
Te002 tungsten electrodes thoriated msds msdsdigital. The endoflife scenario for a thoriated tungsten filament is when the carbonized layer has mostly been converted back into another form of tungsten carbide and emission begins to drop off rapidly. All the old welding books i have read and i have read a bunch of them stated that pure tungsten electrodes were the best for tig welding aluminum. A wide variety of thoriated tungsten electrodes options are available to you, there are 723 suppliers who sells thoriated tungsten electrodes on, mainly located in asia. Special precautions must be taken during the grinding or machining of tips of electrodes that contain thorium oxide. Buy products related to thoriated tungsten products and see what customers say about thoriated tungsten products on free delivery possible on eligible purchases. Tungsten thorium oxide alloys are generally safe to handle during use and almost all normal conditions and environments. The content of this sds is also valid in spanish mexican language to cover all central, south america except brazil and the caribbean countries. Material safety data sheet thoriated tungsten electrodes include the chemical name, risk overview, first aid measures, fire safety measures, spill response, handling and storage, transportation information, etc. Tungsten electrodes matheson select e3 tungsten electrodes deliver superior arc starting, electrode lifetime, and overall costeffectiveness.
The electrode choices are pure tungsten, 2 percent thoriated, 2 percent ceriated, 1. This product is designed to be used as a nonmelting electrode for arc welding and cutting processes. The thoriated type is americas favorite electrode for a reason. Tungsten welding electrodes wt40 4% thoriated orange. Thoriated tungsten electrodes are preferred by some welders over the pure tungsten ones because they result in improved welding properties.
A welders best friend, this ten pack of red 2% thoriated 116 x 7 tig welding tungsten electrodes will help you get the job done. To use thoriated electrodes for alternating current welding. Tungsten electrodes tungsten welding electrodes diamond. A welders best friend, this ten pack of ewth2 red 2% thoriated 332 x 7 tig welding tungsten electrodes will help you get the job done. Thorium increases the electron emission qualities of the electrode, which improves arc starts and allows for a.
The carefully balanced mix of nonradiotoxic dopants used in techweld multistrike tungsten electrodes will give you up to 10 times the number of arc strikes, over conventional 2% thoriated tungsten electrodes under identical conditions. It seems funny that thoriated tungsten electrodes are used for welding when plain tungsten rods, without the thorium, would avoid the need for the radioactivity. Inhalation welding fumes may result in discomfort such as. Premium 10 pack of assorted red wt20 2% thoriated tungsten electrodes for tig welding with reliable arcstriking and a low burnoff rate electrode size. E3 tungsten electrodes can outperform 2% thoriated tungsten electrodes. The use of these electrodes is exempt from nuclear regulatory commission nrc regulations. For thoriated tungsten electrodes, store in tightly closed containers in a cool and wellventilated area. The implementation and monitoring of all health and safety procedures for the storage, grinding, use and disposal of thoriated tungsten electrodes and all byproducts. Learn more about thoriated tungsten electrodes by prostar.
Users of 2% thoriated tungsten electrodes can switch to e3 tungten electrodes with confidence. These thoriated welding rods are really electrodes of the type used in tungsten inert gas tig welding. Apr 19, 2012 in addition, they mentioned that thoriated tungsten electrodes stored in boxes on a shelf do not seem to pose any potential hazards. The rod is consumed during use, but it does not act as a filler that binds two pieces of metal together.
Thoriated tungsten is readily available from many companies including dgp. Thoriated tungsten electrodes are superior to pure tungsten electrodes in many respects. Safety data sheet te002 tungsten electrodes thoriated. The thorium provides longer life, and greater resistance to contamination of the weld. Thoriated tungsten electrodes may be incompatible with some strong acids. Thoriated tungsten electrodes contain thorium, a radioactive material that can pose health and environmental risks at elevated exposure levels. Thoriated tungsten is the most commonly used in the united states. A welders best friend, this ten pack of red 2% thoriated 332 x 7 tig welding tungsten electrodes will help you get the job done.
Tungsten electrodes containing thorium oxide are generally safe to handle during use under most all normal conditions and. Years ago, when i was still an apprentice at chrysler, 2 percent thoriated or red tungsten was still the electrode pretty much everyone used, at least for dc welding. A vacuum tube, an electron tube, or valve british usage or, colloquially, a tube north america, is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied the type known as a thermionic tube or thermionic valve uses the phenomenon of thermionic emission of electrons from a heated cathode and is used for a. They are the most commonly used electrodes today and are preferred for their longevity and ease of use.
Sep 01, 2007 tungsten is a rare metallic element used for manufacturing tig or gtaw electrodes. Diamond ground 2% thoriated tungsten electrode th2040 package of 10 diamond ground 2% 7 inch thoriated tungsten electrode, size. Normal handling of these electrodes is not expected to result in any significant radiation exposure. The top countries of supplier is china, from which the percentage of thoriated tungsten electrodes supply is 100% respectively. February 18, 2010 section 15 regulatory information continued this product has been classified in accordance with the hazard criteria of the controlled products regulations cpr and this msds contains all the information required by the cpr. Users of 2% thoriated tungsten electrodes can switch to e3 tungsten electrodes with confidence. Tungsten electrodes for welding designation chemical composition impurities.
Tenhigh tig tungsten electrodes, lanthanum 2%, wl20blue. Buy weldingcity premium tig welding tungsten electrode rod 2. When preparing grinding and using these electrodes as part of the welding process additional potential hazards are. Printed in usa tb173 12 2% thoriated stable tip geometry. The end preparations are balled, pointed, and truncated. The most common type of electrode used on carbon and stainless steel. Extremely long lasting and highly durable, these electrodes are a staple in dc welding applications. Buy weldingcity 10pk premium tig welding tungsten electrode rod 2. Because the conductivity of e3 tungsten electrodes is similar to that of thoriated tungsten electrodes, the transition to e3 tungsten electrodes can normally be made will little or no modification of the welding process itself. In order to ensure optimum utilisation and protection of our wet grinders ultimatig, ultimatigcut and.
This product is designed to be used as a non melting electrode for arc welding and cutting. Thoriated tungsten electrodes are electrodes made of tungsten and thoria by different proportion and the most widely used ones are 2% thoriated tungsten electrodes. Thoriated tungsten electrodes aws classification ewth2 contain a minimum of 97. Fumes can aggravate asthma, bronchial conditions, or. Choosing one of the six commonly available tungsten electrodes is a crucial first step in successful gas tungsten arc welding gtaw. Thorium containing welding rod 1990s oak ridge, tn. This formula is a popular general purpose electrode due to the excellent arc behavior and good tip life. Tig welding tungsten electrodes 2% thoriated 332 x 7 red. Sixty years of experience have culminated into these premium quality tig welding tungsten electrodes, and you can benefit from that experience. The higher thoria content in the ewth2 electrode causes the operating characteristic improvements to be more pronounced than in the lower thoria content ewth1. Higher electron emissions result in better arc starting and arc stability. Considerable experience in refining and use of thorium has not. Thoriumdioxidedoped tungsten electrodes containing 1. Diamond ground 2% thoriated tungsten electrode th2040.
Dec 11, 2017 the latest innovation in tungsten electrodes, e3 offers excellent ignition characteristics and more consistent welding properties than 2% thoriated. Safety data sheet sds tungsten electrodes section i identification of the substance or mixture and of the supplier ghs product identifier. Thoriated tungsten electrodes aws disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on this safety and health fact sheet. Book depository books with free delivery worldwide. Tig welding 10pk 2% thoriated red tungsten electrode 3.
Tungsten electrodes safety data sheet ck worldwide. Tungsten electrode geometry has an affect on the arc shape thereby affecting the weld bead size and shape. Vapors, grinding dust and disposal of thorium dioxide raise health, safety and environmental concerns. Over at the training center, instructor tom soley had me try out some lanthanated and ceriated tungsten. If breathing is difficult, remove to fresh air and keep at rest in a position comfortable for breathing. Tig welding tungsten electrodes 2% thoriated 18 x 7 10pack red, wt20 5. Home page to find a distributor for these products click here. Arc starting is easier and more stable than pure tungsten. Store in a closed container for thoriated tungsten electrodes, store in tightly closed containers in a cool and wellventilated area.
Tig welding tungsten electrodes 2% thoriated red tig. Engineered to exact specifications, you can count on these longlasting electrodes to perform during your most difficult welding application, time and time again. Thoriated tungsten electrodes thoriated tungsten electrodes. Thorium increases the electron emission qualities of the electrode, which improves arc starts and allows for a higher current carrying capacity. In addition, they mentioned that thoriated tungsten electrodes stored in boxes on a shelf do not seem to pose any potential hazards. The 2% thoriated tig welding tungsten electrode is americas favorite electrode for a reason. There are different types of thoriated tungsten electrodes by prostar. The tig process relies on tungstens hardness and high temperature resistance to carry the welding current to the arc, as it has the highest melting point of any metal 3,410 degrees celsius. Safety data sheet sds tungsten electrodes welding material sales, inc. Industrial tungsten electrodes for sale in stock ebay. Material safety data sheet msds tungsten electrodes. Liquid level sensors free delivery possible on eligible purchases. Thoriated tungsten electrodes msdsthoriated tungsten. Product and company identification product name tungsten 2% thoriated product code 65042000 recommended use welding chemical nature inorganic solid blend information on manufacturer emergency telephone number.
Additional measures should be taken to protect from such possible alpha, beta and gamma radiation. Thoriated tungsten electrodes page 4 of 4 msds preparation date. Te002 tungsten electrodes thoriated msds special notice. This product is designed to be used as a nonmelting electrode for arc welding and cutting. Safety data sheet te002 tungsten electrodes thoriated version number. Avoid the incorporation of thoriated tungsten gases or particle. Tungsten 2% thoriated supercedes date 06232011 issuing date 062020 1. E3 tungsten electrodes your best choice to replace 2% thoriated.
Among the electrodes, only large quantities of thoriated tungsten electrodes may pose a radioactive hazard, and the most serious hazards identified in this section ii relate only to thoriated tungsten electrodes. Only large quantities of thoriated tungsten electrodes may pose a radioactive hazard, and the most serious hazards identified in this section ii relate only to. Radnor tungsten welding electrodesthoriated msds special notice. Selection and preparation guide for tungsten electrodes. Skin repeated or prolonged skin contact may cause allergic reactions with susceptible persons. Nobody should remain permanently or longer than necessary in close proximity to the stored thoriated tungsten electrodes as the electrodes may emit alpha, beta and gamma radiation. Dec 16, 2014 the radioactivity of 10 1,6x175mm tungsten electrodes containing about 2% of thorium dioxide is measured by two different geigermuller counters. Astaras is the leader in pravite branding of mig tig gouging tungsten electrodes tungsten heavy matels astaras, inc. Powerweld 2% thoriated ground tungsten electrodes 116 x 7 10 pack. Astaras is the leader in pravite branding of mig tig gouging tungsten electrodes tungsten heavy matels. If there is no overload current, the life is longer than thoriated tungsten electrode. Matheson select e3 tungsten electrodes deliver superior arc starting, electrode lifetime, and overall costeffectiveness. Testing thoriated electrodes, pure tungsten, 2% lanthanated. It has a low work function and provides a high load and amperage capability.
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