Mild & carbon steels
FERVEO STL 380C3
covered electrode · stick electrodecellulosic coatingCatalogue only
AWS class
E 6010
EN ISO class
E 38 3 C 21
Tensile strength (Rm)
470–540 MPa
Classification
| AWS class | E 6010 |
|---|---|
| EN ISO class | E 38 3 C 21 |
Purpose
- Deep-penetration cellulosic electrode for large-diameter pipeline (AWS E 6010, EN ISO E 38 3 C 21) — the entry step of the FERVEO STL ladder's cellulosic family.
Why it works
The cellulosic coating produces a very deep-penetrating arc capable of fusing the root without excessive bevel prep — the pipeline industry's standard technique for vertical-down root passes.
Fields of application
- Root pass and surfacing of large-diameter gas and oil pipelines, ships, tanks, boilers and steel structures; suited to sour-gas service (HIC test per NACE TM-0284).
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.12 |
| Mn | 0.6 |
| Si | 0.2 |
Mechanical properties
| Tensile strength (Rm) | 470–540 MPa |
|---|---|
| Yield strength (Rp0.2) | 380 MPa |
| Elongation (A5) | 22 % |
| Impact energy (KV) | 47 J (−30 °C) |
Process
| Polarity | DC± |
|---|---|
| Positions | PAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-upPGvertical-down |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 2.5 mm | 350 mm | 40–80 A | |
| 3.2 mm | 350 mm | 65–125 A | |
| 4 mm | 350 mm | 90–175 A | |
| 5 mm | 350 mm | 140–220 A |
Cross-reference
| Replaces FOX CEL (Böhler) | Direct replacement |
| Replaces Fleetweld 5P+ (Lincoln) | Direct replacement |
| Replaces ESC 60 (Magmaweld) | Direct replacement |
| Replaces AS S-6010 (Askaynak) | Direct replacement |
| Replaces NIC 6010 (Nicrotec) | Direct replacement |
| Replaces FLEXAL 60 (Oerlikon) | Direct replacement |
Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.
Base metals
S235JRS275JRS235J2G3S275J2G3S355J2G3P235GHP265GHP235T1-P355T1P235T2-P355T2L210-L360NBL290MB-L360MBS235JRS1-S235J2S2P235G1THP255G1THX42-X56for root pass X60-X80.
Advantages
- Very deep penetration in all positions, particularly suited to vertical-down — the standard root-pass method in large-diameter pipeline.
- Suited to sour-gas service per the NACE TM-0284 HIC test.
Limitations
- For higher mechanical strength within the same cellulosic family, see FERVEO STL 420C2/420C3/460C3.