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.
- 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
|Tensile Strength N/mm2 (KSI)||Elongation %||Hardness|
|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)|