SPECIAL ALLOYS FOR RESISTANCE WELDING
KME manufactures materials for resistance welding electrodes for several decades now; it moreover supplies the input material for the highly stressed parts in blowpipes for fusion welding.
ELBRODUR® alloys satisfy in perfect fashion the performance demands which such materials are expected to meet: high electrical and thermal conductivity, high strength, high resistance to softening (high softening temperature) and retention of high hardness at elevated temperatures (high elevated temperature strength).
ELBRODUR® HF (CuCr1Zr) is a high-strength age-hardened electrode material for spot welding, in particular high-cycle continuous or roller spot welding. Suitable for all steels – including alloyed and stainless grades – and for coated and galvanized sheet.
Tubes made of ELBRODUR® HF, which are primarily used for wire contact nozzles in robotics production, are a speciality of KME. Due to the high quality, calibrating of drilling is unnecessary.
ELBRODUR® N (CuCr1Zr) is age-hardened electrode material for spot, projection and butt welding. Suitable for carbon steels, galvanized sheet, brass, bronze and nickel. Can in certain cases be used for aluminium alloys as well.
ELBRODUR® G (CuCrZr) is age-hardened electrode material for bending applications.
ELBRODUR® B (CuCo2Be) is a high-strength age-hardened electrode material featuring particularly high hardness along with medium electrical conductivity. For spot, projection and butt welding. Suitable for high-strength, corrosion-resistant alloyed steels as well as nickel and nickel alloys.
Special grades for chain welding electrodes, on request.
ELBRODUR® D (CuNi2.5SiCr) is a beryllium-free high-strength, age-hardened electrode material featuring a higher softening temperature and high electrical conductivity – partly serving as an alternative to ELBRODUR® B. Suitable for the resistance welding of bus conductors, for projection welding, and for consumable and butt welding electrodes. Also suitable for high-strength sections and plungers of die casting machines.