Description
ERCuNi can be used for MIG overlay on steel after a first layer with Nickel 208. Dissimilar welding applications include joining copper-nickel alloys to Nickel 200 or nickel-copper alloys.. It can equivalent to: Oxford Alloy 67 FM 67, Techalloy 413.
Applications
ERCuNi is used for TIG, MIG, and oxyfuel welding of 70/30, 80/20 and 90/10 copper- nickel alloys. This filler metal can be used for MIG overlay on steel after a first layer with Nickel 208 (Filler Metal 61). Dissimilar-welding applications include joining copper-nickel alloys to Nickel 200 or nickel-copper alloys.
Product Details
Chemical composition
| Grade |
Chemical composition(%) |
| ERCuNi |
C |
Mn |
Si |
S |
P |
Ni |
| ¡Ü0.03 |
¡Ü1.0 |
¡Ü0.25 |
¡Ü0.01 |
¡Ü0.02 |
30~32 |
| Al |
Fe |
Ti |
Cu |
Others |
|
| ¡Ü0.15 |
0.4~0.75 |
0.2~0.5 |
Bal |
£¼0.5 |
¡¡ |
Mechanical properties
| Tensile Strength |
Yield Strength |
Elongation |
| 360 Mpa |
140 Mpa |
32% |
Welding paramaters
| Process |
Diameter |
Voltage |
Amperage |
Gas |
| TIG |
.045¡± (1.2mm) |
13-16 |
80-110 |
100% Argon |
| 1/16¡± (1.6mm) |
14-18 |
90-130 |
100% Argon |
| 3/32¡± (2.4mm) |
15-20 |
120-175 |
100% Argon |
| 1/8¡± (3.2mm) |
15-20 |
150-220 |
100% Argon |
| MIG |
.045¡± (1.2mm) |
28-32 |
180-220 |
75% Argon + 25% Helium |
| 1/16¡± (1.6mm) |
29-33 |
200-250 |
75% Argon + 25% Helium |
| SAW |
3/32¡± (2.4mm) |
28-30 |
275-350 |
Suitable Flux may be used |
| 1/8¡± (3.2mm) |
29-32 |
350-450 |
Suitable Flux may be used |
| 5/32¡± (4.0mm) |
30-33 |
400-550 |
Suitable Flux may be used |
Specifications
AWS A5.7, ERCuNi / ASME II, SFA-5.7, ERCuNi DIN 1733 S-CuNi30Fe UNS C71581 Werkstoff Nr. 2.0837 ISO S Cu 7158 Europe S Cu 7158 (CuNi30). |
