Coated electrodes for manual welding

AMA 1709G

  • ENiCu–7 AWS/ASME SFA – 5.11:
  • EL–NiCu30Mn DIN 1736 :
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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):

CMnSiTiFeCuNi
0.043.50.70.62.3rest65

Mechanical Properties of all-weld metal:

(single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )
Elongation
A5 (%)
Impact energy(j)
ISO - V
20°C+
>480> 300> 30100
Welding Parameters
Diameter (mm)Length (mm)Amperage (A)
2.525060 – 80
3.25300-35090 – 120
4.0350110 – 150
5.0350140 – 200

Materials:

DIN StandardNiCu30Fe (2.4360), NiCu30Al (2.4375)
other StandardAlloy 400, ASTM B 127, B 165

Rebaking:

required at 300°C for 2 hours.

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