RESISTANCE WELDING SUPPLIES

Copper has a high electrical and thermal conductivity and is the basis of resistance welding alloys. The most significant of these
are MALLORY 328, MALLORY 100 and ELKANITE 20W3.

MALLORY 328 is a chromium-copper alloy with added zirconium. It is resistant to cracking and sticking and is particularly suitable for welding tin-plate, mild steel and coated steel.

MALLORY 100 contains cobalt, nickel and beryllium, and has moderately good conductivity and even greater hardness than MALLORY 328. It is particularly suitable for welding high-resistance materials such as stainless steel and heat-resistant alloys.

ELKANITE 20W3 is a copper-tungsten alloy manufactured using powder metallurgy techniques. This process produces an alloy with high hardness, reasonably good electrical conductivity and extremely high softening temperatures. ELKANITE 20W3 is best suited to die inserts or facings for projection, flash and butt welding, and hot upsetting and riveting.

BRAZING

Brazing is an important, flexible and long-established system of metal joining with proven, unique and beneficial properties. The ELKALOY range of brazing alloys allows the customer the use of a number of heating methods to complement the wide choice of alloys available.

The benefits of the ELKALOY range:

• Low temperature joining - down to 600ºC
• Good mechanical strength
• Excellent corrosion resistance in a wide variety of environments
• Smooth neat joints
• A wide range of parent metal combinations

The ELKALOY range of products is available in a variety of forms:

• Rods, plain and flux coated
• Wire, strip or foil
• Washers, rings and special shapes
• Powders