ENiCu–7
1709g ama 1709g
Electrode for welding nickel alloys
Application/properties:
Basic electrode for joining and surfacing of nickel-copper alloys and of nickel-copper-clad steels. It is also used for joining different materials, such as steel to copper and copper alloys, steel to nickel-copper alloys. Excellent corrosion resistance to chloride induced stress corrosion cracking and a wide range of marine and chemical requirements. These materials are employed in high-grade apparatus construction, primarily for the chemical and petrochemical industries. A special application field is the fabrication of seawater evaporation plants and marine equipment.
Weld metal analysis in % (typical values):
C | Mn | Si | Ti | Fe | Cu | Ni |
---|---|---|---|---|---|---|
0.04 | 3.5 | 0.7 | 0.6 | 2.3 | rest | 65 |
Mechanical Properties of all-weld metal:
(single values are typical values)
Tensile Strength ( N/mm 2 ) |
Yield Strength ( N/mm 2 ) |
Elongation A5 (%) |
Impact energy(j) ISO - V 20°C+ |
---|---|---|---|
>480 | > 300 | > 30 | 100 |
Welding Parameters | ||
---|---|---|
Diameter (mm) | Length (mm) | Amperage (A) |
2.5 | 250 | 60 – 80 |
3.25 | 300-350 | 90 – 120 |
4.0 | 350 | 110 – 150 |
5.0 | 350 | 140 – 200 |
Materials:
DIN Standard | NiCu30Fe (2.4360), NiCu30Al (2.4375) |
other Standard | Alloy 400, ASTM B 127, B 165 |
Rebaking:
required at 300°C for 2 hours.