Specifications and Applications | Madras Cupprum Metals

Technical Specifications and Applications at a Glance

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Materials Specification

Applications

Alloy Grade	International Standard	Applications
RWMA Class 2 CuCr Copper Chromium	C18200	Used for resistance welding electrodes for cold-rolled steel, hot-rolled steel; ideal for seam welding wheels in automotive and drum manufacturing and cycle rim manufacturing; components in flash butt-welding machines; projection welding electrodes; electrical contacts requiring wear resistance and conductivity; Resistance welding machine components such as housings, and step shafts.
RWMA Class 2 CuCrZr Copper Chromium Zirconium	C18150	Applications include heavy-duty resistance welding electrodes for high-strength steels; electrodes for welding galvanized steel; anvil bars and shafts in seam welding machines; projection welding electrodes for automotive components; bushings and connectors in high-temperature environments.
RWMA CLASS 3 CuCo2Be Cobalt Beryllium Copper	C17500	Commonly used for projection welding electrodes for intricate and small parts, components for aerospace applications requiring high strength and conductivity, resistance welding electrodes for hardened steels and stainless steels; electrical connectors in critical environments.
RWMA CLASS 3 CuNi2Be Nickel Beryllium Copper	C17510	Ideal for projection welding electrodes and precision components, electrodes in resistance welding applications for heat-treated materials, high-performance connectors, and contacts in electrical and aerospace industries.
RWMA CLASS 3 CuNi2Si Nickel Silicon Copper	C18000	Widely used for resistance welding components in non-ferrous applications, electrodes for welding galvanized steel and coated materials, bushings and bearings in high-load environments, and structural parts requiring moderate strength and conductivity.
RWMA CLASS 4 CuCoBe2 Cobalt Beryllium Copper	C17200	Preferred for precision projection welding electrodes, wear-resistant components for aerospace and automotive industries, resistance welding parts for hardened materials, and high-strength connectors requiring excellent conductivity and durability.