Techweld MultiStrike Tungsten

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Techweld MultiStrike Tungsten Electrodes represent the highest quality, totally traceable, longest lasting and are the most reliable tungsten electrodes on the market allowing welding of steels and alloys with DC as well as aluminum with AC techniques giving narrower, lower heat input welds.

Techweld MultiStrike Tungsten Electrodes produce a 10 times greater number of arc strikes, over conventional thoriated tungsten electrodes under the same conditions and provide a stable performance over the current range from 0 – 300 Amps.

Techweld MultiStrike Tungsten Electrodes have been developed with the health and safety of the end user in mind.

Non-Carcinogenic, Non-Radiotoxic

Techweld MultiStrike Tungsten Electrodes can be used for welding of steels and alloys with DC as well as aluminum with AC techniques and provide a stable performance over the current range from 0 – 300 Amps.

The carefully balanced mix of non-radiotoxic 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.

These MultiStrike Tungsten Electrodes are:

  • Non-Thoriated
  • Non-Radiotoxic
  • Non-Carcinogenic

In addition, MultiStrike Tungsten Electrodes lower the working temperature giving narrower, lower heat input welds. The number of arc strikes is increased before re-grinding is needed.

Techweld MultiStrike Tungsten Electrodes are totally traceable tungsten electrodes identified by a batch number and shown on our special packaging.

Guaranteed Quality with Tractability

MultiStrikes Tungsten Electrodes

Techweld MultiStrike Tungsten Electrodes consist of a unique blend of dopants to allow them to perform at high, low and medium current ranges with TIG (GTAW) welding of steels, nickel and cobalt based materials, as well as titanium and aluminum alloys.


This unique blend of dopants greatly enhances electrode life by significantly increasing the number of arc strikes before re-grinding is necessary, generating an up to 10 times better performance from MultiStrike Tungstens compared with thoriated tungsten electrodes.

In the photographs on the right you see a conventional 2% thoriated tungsten electrode after 10 arc strikes and on the right you see the Techweld MultiStrike Tungsten Electrode after 200 arc strikes.

No Radio-Toxic Contents

Those who are uncertain of the true effects of red tipped thoriated tungsten electrodes can look at these measurements made by a radiation monitor. The difference in the readings can be seen clearly. Red tipped thoriated tungsten electrodes have over 60 times greater radiation output than the normal level existing in the environment.

techwel radiation monitor

Ask your health and safety department to measure the radiation output from 10 packs of thoriated tungstens together. They should have a monitor that will show you a similar result.

Your safety is our priority. Recognizing the risk to health posed by the radiotoxic red tipped thoriated tungsten electrodes, MultiStrike Tungsten Electrodes that are free from the potentially harmful thoria.

The red tipped thoriated tungsten contain thorium, a naturally occurring radioactive element incorporated into tungsten welding rods by a sintering process to improve their working properties. Thorium is a highly radiotoxic material and the main hazard is associated with inhalation of dust particles generated during tip grinding.

The radioactive meter tests, which show the radiation levels of 60 units or more for thoriated tungsten’s also shows that MultiStrike Tungsten Electrodes produce near to a zero radiotoxic level because of the mix of non-radioactive rare earth elements.

Whether you are an employer who is looking after the Health and Safety of your employees and others, or if you are a welder concerned about the carcinogenic effects of conventional thoriated tungsten electrodes, you may wish to consider the safer alternative, Techweld MultiStrike Tungstens (MST).

Non Thoria, Safe, ‘Green’ Tungstens

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MultiStrike Tungsten contain a blend of rare earth dopants to replace Thoria.

The dopants are not radioactive and they are mixed in accurate proportions using statistical proportional control procedures, fully computerized to ensure that the tungstens are made to the same high standards every time.

The exact ingredients of MultiStrike are part of the intellectual property of Huntingdon Fusion Techniques HFT® who have carried out extensive research and development to bring a quality product to the market place that is totally traceable, reliable and repeatable.

The unique packaging gives a guarantee of product quality, reliability, repeatability, consistency and traceability.

MultiStrike® Tungstens conform to the rules and regulations of EN 26848 and ANSI/AWS A5 12m-98.

Some Specific Background and Science

The work function of a metal or alloy is the energy needed to remove an electron from Fermi level in the material to a point at an infinite distance outside the surface.

This is relevant to TIG welding since the lower the work function of an electrode, the lower the voltage necessary to strike an arc.

The work function of tungsten is 4.35 ev. Therefore, the addition of a stable metal oxide with a work function lower than pure tungsten, lowers the work function of the tungsten.

Thorium’s work function is 3.4 ev.

The special blend of dopants in MultiStrike® has a work function of 2.9 ev.

Huntingdon Fusion Techniques HFT®’s special blend of dopants along with its stringent in-house production specification ensure that the dopant is distributed evenly through the Techweld MultiStrike maintaining an even performance from start to finish.

Techweld MultiStrike ‘Thoria Free’ Safe, Green Tungsten Electrodes

MST6010 Techweld MultiStrike® 150 mm 1.0 mm 0.040″ 38 grams per pack of 10
MST6016 Techweld MultiStrike® 150 mm 1.6 mm 0.062″ 75 grams per pack of 10
MST6020 Techweld MultiStrike® 150 mm 2.0 mm 0.080″ 108 grams per pack of 10
MST6024 Techweld MultiStrike® 150 mm 2.4 mm 0.093″ 144 grams per pack of 10
MST6032 Techweld MultiStrike® 150 mm 3.2 mm 0.125″ 236 grams per pack of 10
MST6040 Techweld MultiStrike® 150 mm 4.0 mm 0.156″ 332 grams per pack of 10
MST6048 Techweld MultiStrike® 150 mm 4.8 mm 0.188″ 500 grams per pack of 10
MST7010 Techweld MultiStrike® 175 mm 1.0 mm 0.040″ 49 grams per pack of 10
MST7016 Techweld MultiStrike® 175 mm 1.6 mm 0.062″ 86 grams per pack of 10
MST7024 Techweld MultiStrike® 175 mm 2.4 mm 0.093″ 163 grams per pack of 10
MST7032 Techweld MultiStrike® 175 mm 3.2 mm 0.125″ 276 grams per pack of 10
MST7040 Techweld MultiStrike® 175 mm 4.0 mm 0.156″ 416 grams per pack of 10
MST7048 Techweld MultiStrike® 175 mm 4.8 mm 0.188″ 600 grams per pack of 10