Special Purpose Electrodes
Engineered for Specific Applications
Special purpose electrodes include cast iron, dissimilar metal, and cellulosic electrodes for applications where standard electrodes are not adequate. These are selected based on base material and service requirements.
Chemical Composition & Mechanical Properties
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| Electrode Type | C % | Mn % | Si % | S % Max | P % Max | Other Elements | Tensile Strength (N/mm²) | Yield Strength (N/mm²) | Elongation % | Impact (CVN) |
|---|---|---|---|---|---|---|---|---|---|---|
| Cellulosic Electrodes | ||||||||||
| E6010 | 0.20 max | 1.20 max | 1.0 max | 0.03 max | 0.03 max | Ni=0.30 max, Cr=0.20 max, Mo=0.30 max, V=0.08 max | 460-550 | 390-470 | 22-30 | -30°C 50-80J |
| E7010P1 | 0.20 max | 1.2 max | 0.60 max | 0.025 max | 0.03 max | Ni=1.0 max, Cr=0.30 max, Mo=0.50 max | 490 min | 415 min | 22 min | 26°C 60J; 0°C 50J; -30°C 40J |
| E8010P1 | 0.20 max | 1.2 max | 0.60 max | 0.025 max | 0.03 max | Ni=1.0 max, Cr=0.30 max, Mo=0.50 max | 550 min | 460 min | 19 min | 26°C 60J; 0°C 50J; -30°C 40J |
Suitable for dissimilar metal joining
Cast iron electrodes for crack repair
Cellulosic electrodes for vertical-down pipeline welding
High penetration for root-pass welding
Available for aluminium and copper alloys
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