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TIG WELDING

Tungsten electrodes

Thoriated TIG welding electrodes with 2 % thorium oxide (colour code red) are currently the most widely used electrodes worldwide. Thorium is however a radioactive element and as such represents a potential danger to health and environment. Thorium is a so-called “a-emitter,” but when enclosed in a tungsten matrix, the “a” radiation emitted externally is negligible. The danger to the welder arises when thorium oxide gets into the respiratory canals.

The new electrodes offer:

This problem can occur during welding (vapours) as well as when grinding the electrode tip (grinding dust). In the near future, more stringent legal regulations regarding production, use and disposal of thoriated electrodes are expected. It is expected that TlG-welding electrodes containing thorium will disappear from the market in the foreseeable future, especially as an environmentally friendly and technically better solution is already available.

Standardised in national and international norms (ISO 6848, EN 26848, AWS A5.12, JlS Z3233)

Unitor tungsten electrodes is alloyed with Lanthanum (colour code gold) and is sold in sturdy boxes of 10 pcs.

4.02

Description

Tungsten electrodes 1.6 mm. Tungsten electrodes 2.4 mm.

386

Unit

10 pcs 10 pcs

Product no.

197-674710

197-674736

• Environmentally friendly-no radioactive constituents • Can be transported, stored and disposed of without legal restrictions • Suitable for welding all materials • Better ignition performance than thorium alloyed type electrodes • Low burn off rate, longer service life