Copper & bronze
FERVEO CUP NI30 TIG
TIG rodCatalogue only
also as: solid wire
AWS class
ER CuNi
EN ISO class
S Cu 7158 (CuNi30Mn1FeTi)
Tensile strength (Rm)
400 MPa
Classification
| AWS class | ER CuNi |
|---|---|
| EN ISO class | S Cu 7158 (CuNi30Mn1FeTi) |
| Material no. (W.-Nr.) | 2.0837 |
Purpose
- 70/30 cupronickel solid TIG rod (CuNi30Mn1FeTi), seawater-resistant — joining copper-nickel alloys up to 30% Ni and dissimilar steels/alloys.
Why it works
The higher nickel content (30%) versus CUP NI10 MIG (10%) gives higher mechanical strength (Rm 400 versus 300 MPa) and better toughness (KV 100 J) — the 70/30 alloy is the more demanding grade for seawater piping and condensers, which is why the supplier explicitly notes its seawater resistance.
Fields of application
- Joining copper-nickel alloys up to 30% Ni (DIN 2.0842, 2.0872, 2.0878, 2.0882 and equivalents).
- Joining dissimilar alloys/steels (as a transition filler).
Chemical composition
| Element | Typical, % |
|---|---|
| Cu | balance |
| Fe | 0.4 |
| Mn | 1 |
| Ni | 30 |
| Ti | 0.5 |
Mechanical properties
| Tensile strength (Rm) | 400 MPa |
|---|---|
| Yield strength (Rp0.2) | 250 MPa |
| Elongation (A5) | 30 % |
| Impact energy (KV) | 100 J |
Process
| Polarity | DC− |
|---|---|
| Shielding gas | I1 |
Sizes and part numbers
| Ø | Request |
|---|---|
| 1 mm | |
| 1.6 mm | |
| 2.4 mm | |
| 3.2 mm |
Supply programme
boxes 5 / 10 kg
Cross-reference
| Replaces CUROD 70/30 (Oerlikon) | Direct replacement |
| Replaces UTP A 387 (UTP) | 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
2.08422.08722.08782.0882
Advantages
- Seawater-resistant.
- Higher strength and toughness than CUP NI10 MIG (Rm 400 MPa, KV 100 J).
- Suitable for joining dissimilar alloys.
Limitations
- Not suitable for oxy-fuel gas welding.