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ERNiCu-7/UNS N04400/W.Nr.2.4377 AWS A5.14 Wire

  • Place of Origin Jiangsu,China
  • Model Number ERNiCu-7
  • Trade Names UNS NO4400/W.Nr.2.4377
  • Dimensions 0.8MM / 1.0MM / 1.2MM / 1.6MM / 2.4MM / 3.2MM / 3.8MM / 4.0MM / 5.0MM.Customized Size
  • Delivery Conditions Pickling, Bright
  • Avaliable Package Form MIG(15kg/spool), TIG(5kg/box), Coil
  • MOQ 50~200 (KG)
  • Production Standards AWS A5.14
  • Packaging Details Wooden Case, or as per Client's request
  • Payment Terms L/C, T/T, Western Union, MoneyGram
  • Trade Terms FOB, CIF, DUP, EXW
  • Delivery Time 20~60 days

Overview


ERNiCu-7 is used for MIG, TIG, and SAW welding of copper alloys. It is used for joining base materials such as UNS number NO4400, NO4405 and NO5500. This alloy can be used for dissimilar welding applications using various nickel-copper alloys to nickel 200 and to copper-nickel alloys. This alloy can be used to overlay over carbon steel, provided a buffer layer of ERNi-1 is used for the first layer.



Limiting Chemical Composition, %


Nickel..................................................................................................................................................................................62.00-69.00

Titanium..................................................................................................................................................................................1.50-3.00

Manganese.............................................................................................................................................................................4.00 max.

Iron..........................................................................................................................................................................................2.50 max.

Copper.................................................................................................................................................................................18.81-36.50

Silicon.....................................................................................................................................................................................1.25 max.

Aluminium..............................................................................................................................................................................1.25 max.

Carbon....................................................................................................................................................................................0.15 max.

Phosphorous..........................................................................................................................................................................0.02 max.

Sulfur.....................................................................................................................................................................................0.015 max.



Mechanical Properties


Condition

Tensile strength Mpa (Ksi)

Yield strength Mpa(Ksi)

Elongation %

AWS Reaulrement

480(70)

Not specified

Not specified

Typical Results as weled

530(77)

360(53)

34



Corrosion Resistance


ERNiCu-7 exhibits outstanding corrosion resistance, making it well-suited for applications in corrosive environments commonly found in the petrochemical and marine industries. The alloy’s corrosion resistance is attributed to the presence of nickel, which forms a protective oxide layer on the surface of the material, preventing corrosive elements from reaching the underlying substrate.

The addition of chromium further enhances the corrosion resistance of ERNiCu-7. Chromium forms stable oxides that act as a barrier, preventing the penetration of corrosive agents. This dual-layer protection, facilitated by nickel and chromium, ensures long-term durability and reliability in challenging environments where corrosion is a significant concern.



High-Temperature Performance


One of the standout features of ERNiCu-7 is its exceptional stability at high temperatures. This property makes it an ideal choice for applications where exposure to elevated temperatures is a constant factor, such as in the aerospace and power generation industries.

The alloy’s high-temperature stability is attributed to the synergistic effects of its alloying elements. Nickel, the primary component, contributes to the overall heat resistance of the alloy. Chromium enhances oxidation resistance, preventing the formation of detrimental oxides that could compromise the material’s integrity. This combination of elements results in a welding wire that can withstand the challenges posed by extreme temperatures, ensuring structural integrity and reliability in demanding environments.



Product Forms And Packaging (0ther sizes available -please contact us)

 

Product

Diameter

Length

Packaging

Wire For MIG/GMAW Welding

0.8mm/1.0mm/1.2mm/1.6mm/2.0mm/2.4mm /2.5mm/3.2mm

-

33 lbs (15kgs)

Rods For TIG/GTAW Welding

2.0mm /2.4mm /2.5mm/3.2mm/4.0mm/5.0mm

915mm-1000mm

11 lbs (5kgs)

Wire For SAW Welding

2.0mm /2.4mm /2.5mm /3.2mm /4.0mm/5.0mm

-

60 lbs (27kgs)

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