We stock Copper Alloys in both standard sizes and custom cut sizes to meet your specific application needs. Available in Rod. Bar and Plate. We additionally offer same day shipping to get them to you fast
Getting you the products you need – when you need them, is what makes Resistance Welding Machine & Accessory stand apart from its competition.
RWMA CLASS 1
| RWMA CLASS 1 | RWMA No. | RWMA GENERAL USE * | RWMA DESCRIPTION |
|---|---|---|---|
| ZIRCONIUM COPPER | 1.15000 | Electrodes for welding aluminum alloys, magnesium alloys, coated materials, brass and bronzes. Can be used for both spot and seam welding. | Specially heat treated zirconium copper alloy that meets the minimum electrical conductivity & hardness specifications of class 1 alloy. |
| CADMIUM COPPER | 1.16200 | Electrodes for welding aluminum alloys, magnesium alloys, coated materials, brass and bronzes. Can be used for both spot and seam welding. | A high conductivity cadmium copper alloy, not heat treatable, but can be work hardened. |
RWMA CLASS 2
| RWMA CLASS 2 | RWMA No. | RWMA GENERAL USE * | RWMA DESCRIPTION |
|---|---|---|---|
| CHROMIUM -ZIRCONIUM COPPER | 2.18000 | Stronger than Class 1 materials, but slightly lower conductivity. Used for spot & seam welding cold & hot rolled steel, stainless & low conductivity brass & bronze. Also as flash welding dies & electrodes for welding galvanized steel and other coated materials. | A specially heat treated chromium-zirconium copper alloy that meets the minimum electrical and hardness specifications of Class 2 alloys. Should be used in heat treated condition. |
| CHROMIUM COPPER | 2.18200 | Stronger than Class 1 materials, but slightly lower conductivity. Used for spot & seam welding cold & hot rolled steel, stainless & low conductivity brass & bronze. Also as flash welding dies & electrodes for welding galvanized steel and other coated materials. | A high conductivity chromium copper alloy that obtains its optimum properties from a combination of both heat treatment and cold work. Should be used in heat treated condition. |
RWMA CLASS 3
| RWMA CLASS 3 | RWMA No. | RWMA GENERAL USE * | RWMA DESCRIPTION |
|---|---|---|---|
| NICKEL-SILICON-CHROMIUM COPPER | 3.18000 | High hardness makes them ideal for electrodes for spot & seam welding high resistance materials like stainless steels, nichrome, inconel, & monel metal. As a casting, they're used for flash, butt & projection welding electrodes & fixtures. Other uses are welding gun components, seam welding bearing and other current carrying structural parts. | Heat treatable copper alloys with a combination of high tensile strength & good electrical & thermal properties. Should be used in heat treated condition. |
| NICKEL-BERYLLIUM COPPER | 3.17510 | High hardness makes them ideal for electrodes for spot and seam welding high resistance materials like stainless steels, nichrome, inconel, and monel metal. As a casting, they're used for flash, butt & projection welding electrodes & fixtures. Other uses are welding gun components, seam welding bearing and other current carrying structural parts. | Heat treatable copper alloys with a combination of high tensile strength & good electrical & thermal properties. Should be used in heat treated condition. |
RWMA CLASS 4
| RWMA CLASS 4 | RWMA No. | RWMA GENERAL USE * | RWMA DESCRIPTION |
|---|---|---|---|
| BERYLLIUM COPPER | 4.17200 | Electrode material for flash, upset-butt and projection welding applications where pressures are extremely high and wear is severe, but where heat is not excessive. They are used frequently in the form of inserts and facings. They may also be used for seam welding bushings. | Heat treatable copper alloy having the unusual combination of very high hardness, high strength and lower electrical conductivity than Class 3 materials. Should be used in heat treated condition. |
* Recommended uses are for illustration only and in no way guarantees suitability for your particular application needs. Call for details.
