| RWMA Class | Alloy Name | Form & Size (mm) | Hardness (HRB/ HRC) | Electrical Conductivity (IACS %) | Tensile Strength (N/㎟ (Kgf/㎟)) | Elongation (%) | Application |
|---|---|---|---|---|---|---|---|
| Class 2 | CuCr | Bar | HRB 75＜ | 75＜ | 42 (412) | 15＜ | Mostly for mild steel, high tensile strength steel, and surface treated steel sheet (thin coated). |
| Class 3 | BeCu50 | Casting | HRC 33< | 45＜ | 60 (588) | 9＜ | Mostly for stainless steel, and heat-resisting steel sheet. |
| Class 4 | BeCu25 | Casting | HRC 33< | 18＜ | 63 (618) | Mostly for special purpose steel. |
Shank
Adapter
Electrode
Holder