| Material of electrode | Features and use | JIS Z 3234 |
| Copper-chromium | This is the type most commonly used for resistance welding. It is used for welding soft steel plates, zinc coated steel, stainless steel plates, etc. | 2 type |
| High-strengthened copper-beryllium |
The electrical and thermal conductivity are not as good as those of chrome copper. However, it has the higher mechanical strength and has the higher hardness at normal- and high-temperature. This type of electrode is used for welding heat-resistant steel, stainless steel, etc. | 3 type |
| Alumina dispersion- strengthened copper |
High electric and thermal conductivity, however the hardness at high-temperature is similar or less than that of general copper-chromium. This type of electrode is used for welding zinc coated steel plates and nickel, etc. | 5 type |
| Tungsten | The characteristic resistance is relatively high and the hardness is also high. This type of electrode is used for copper, brass, and cross wire welding. | - |
| Molybdenum | The characteristics are resemble to that of tungsten, but it has good processability. | - |
