Cast iron
FERVEO FON Ni
covered electrode · stick electrodeCatalogue only
AWS class
E Ni-CI
EN ISO class
E C Ni-CI 1
Tensile strength (Rm)
250 MPa
Classification
| AWS class | E Ni-CI |
|---|---|
| EN ISO class | E C Ni-CI 1 |
| Other standards | EN ISO 1071: E C Ni-CI 1 |
Purpose
- Pure nickel cored stick electrode (AWS E Ni-CI, EN ISO E C Ni-CI 1) — joining and repair welding of grey, malleable and nodular cast iron, including joining cast iron to steel, stainless steel, or Monel.
Why it works
Pure nickel absorbs the carbon migrating from the cast iron without forming as hard and brittle a heat-affected zone as a steel electrode would — the deposit stays soft and machinable, greatly reducing the cracking risk typical of welding cast iron.
Fields of application
- Joining and repair welding of grey, malleable, and nodular cast iron.
- Joining cast iron to steel, stainless steel, or Monel.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.5 |
Mechanical properties
| Tensile strength (Rm) | 250 MPa |
|---|---|
| Yield strength (Rp0.2) | 200 MPa |
| Elongation (A5) | 3 % |
Process
| Polarity | DC−/AC |
|---|
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 2.5 mm | 300 mm | 60–90 A | |
| 3.2 mm | 300 mm | 90–110 A | |
| 4 mm | 400 mm | 110–130 A |
Cross-reference
| Replaces Castolin EC 4044 (Castolin) | Direct replacement |
| Replaces OK Ni-CI (ESAB) | Direct replacement |
| Replaces ENI 402 (Magmaweld) | Direct replacement |
| Replaces ENI 412 (Magmaweld) | Direct replacement |
| Replaces AS Pik-98 Super (Askaynak) | Direct replacement |
| Replaces NIC Ni (Nicrotec) | Direct replacement |
| Replaces SUPERFONTE Ni (Oerlikon) | Direct replacement |
| Replaces Fonte Ni (Selectarc) | Direct replacement |
| Replaces Castweld 99 (Stoody) | 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.
Advantages
- Fully machinable deposit — the softest and most dilution-tolerant in the FERVEO FON family.
- The most crack-resistant in the family — the default choice for cast-iron repair.
- Versatile: beyond cast-iron-to-cast-iron, it joins cast iron to steel, stainless steel, or Monel.
Limitations
- Requires specific technique: short beads and gently peening each pass with a hammer while still hot — skipping this greatly increases cracking risk.
- Limited mechanical strength versus FON NiFe — not the choice when the joint must carry structural load, repair use only.