SMAW
ENiCu-7 is a flux-core, copper-rich nickel-base alloy designed for corrosion resistance. It can be used to join different alloys, surfacing steel. It is manufactured with a high purity nickel core with a metal-balanced basic flux coating that also contains pure molybdenum for alloying purposes and an alloy for grain refinement. A silicate binder used for extrusion ensures coating strength and hygroscopic resistance.
Product Detail
- N-NiMo-7 is a nickel-molybdenum flux-coated electrode developed specifically for welding similar base metals, such as Hastelloy® B-2 to itself or to steel, and nickel alloys
- Excellent resistance to pitting and stress corrosion cracking commonly caused by acids due to controlled level of carbon, iron, cobalt, nickel, and molybdenum
- Chemical processing industries on parts exposed to all concentrations and temperatures of hydrochloric acid
- Parts subject to sulphuric, phosphoric, and acetic acids
- Should not be used in the presence of cupric or ferric salts
- Designed for use on DC+ only. The stable arc is readily controllable and the slag viscosity allows the smaller diameter to be used positionally.
- The weld beads are bright and evenly rippled with fillet welds having a slight convex profile.
- Metal recovery is some 130% with respect to core wire weight
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.02 | ≤0.2 | ≤1.75 | ≤0.04 | ≤0.03 | ≤1.0 | balance | 26.0-30.0 | ≤0.5 | ≤2.0 |
| Tensile Strength N/mm2 (KSI) | Elongation % | Hardness |
|---|---|---|
| 757 (110) | 27 | 98 |
| Process | Diameter in(mm) | Voltage (V) | Flat | Vertical and Overhead |
|---|---|---|---|---|
| SMAW | 3/32 (2.4mm) | 24 – 28 | 70 – 85 | 65 – 75 |
| SMAW | 1/8 (3.2mm) | 26 – 30 | 85 – 110 | 80 – 90 |
| SMAW | 5/32 (4.0mm) | 28 – 32 | 110 – 140 | 100 – 120 |
| SMAW | 3/16 (4.8mm) | 28 – 32 | 120 – 160 | 110 – 130 |
| Diameter in(mm) | Length in(mm) | Packaging |
|---|---|---|
| 3/32 (2.4) | 12 (229) | 10lbs (4.54kgs) |
| 1/8 (3.2) | 14 (356) | 10lbs (4.54kgs) |
| 5/32 (4.0) | 14 (356) | 10lbs (4.54kgs) |
| 3/16 (4.8) | 14 (356) | 10lbs (4.54kgs) |
