Electrodes for welding and pressure welding

High current resistance, high-temperature resistance, high deformation resistance.
Tungsten is used as the electrode in the torch for TIG welding, a method employed for precision welding, due to its high melting point and low consumption rate. Both tungsten and molybdenum are utilized as resistance welding electrodes in the thermal crimping of wire harnesses and the spot welding of metal plates. Resistance welding involves pressing an electrode, heated by the passage of electric current, against metal to achieve pressure welding. Tungsten and molybdenum are preferred for this application due to their excellent resistance to high current, high melting points, and deformation resistance.

Applications TIG welding electrodes, Resistance welding (spot welding) electrodes, etc.

List of tungsten and molybdenum for welding and pressure welding

スクロールで表全体をご覧いただけます。

W Materials Purity(%) Additive Notes
EX 99.95 min. K It contains minimal impurity gases and demonstrates exceptional resistance to high-temperature deformation and corrosion from deposited metals, such as aluminum (Al), nickel (Ni), and chromium (Cr), which contributes to its extended service life.
CY(PFW) 99.95 min. None This is the most conventional pure tungsten material, which has good workability, excellent corrosion resistance, and low impurity gas content.
4N-W   99.99 min. None It is the highest level of high-purity tungsten available in the world.
5N-W 99.999 min. None It is the highest level of high-purity tungsten available in the world.
EP  99.95 min. K This material is ideal for use as a structural component at high temperatures. Its fine crystallinity offers excellent impact resistance, making it highly suitable as an electrode for pressure welding.

スクロールで表全体をご覧いただけます。

Mo Materials Purity(%) Additive Nones
MOP 99.95 min. None It is the most conventional pure molybdenum material, with a high melting point and excellent high-temperature strength. It also has high thermal conductivity, low thermal expansion, and excellent workability.
Tungsten technical information
Molybdenum technical information