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Electrodes for Nickel and it's Alloys

D&H 1212(NS)

AWS: SFA 5.11 ENiCrFe-3 EN ISO CODE: 14172 E Ni 6182

A non-synthetic electrode depositing homogeneous Ni-Cr-Fe alloy composition. It is ideally suited for welding alloys of similar compositions to themselves, for surfacing steel with Nickel-Chromium-Iron alloy when high Manganese contents are not detrimental, for welding clad side of Nickel Chromium-Iron clad steel and dissimilar metal combinations. Specially recommended for welding 9% Ni Steels for cryogenic service. Also used for welding of Nickel-Chromium alloys used for high temperature applications like furnace heating elements and reformer tubes.

Precaution

1. Ensure the electrodes are dry. Re-dry the electrodes at 300-325°C for one hour.

2. Maintain a short arc, stringer bead and minimize the heat input.

3. Allow the weld to cool down to below 50 C before depositing, the next layer.

4. For dissimilar metal welding, control the dilution by:

a. Operating at lower currents

b. Using stringer beads and faster welding speeds.

Approvals
    NPCL
    CIB-MP
    CE
CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSiPSCrNiFeNb
Percent

0.03

6.00.250.0080.00915.0Bal.6.02.2


MECHANICAL PROPERTIES OF ALL WELD METAL


UTSElongation
CVN Impact Strength (J)
Lateral Expansion
(MPa)
(L= 5d)%
at Minus 196°C
at minus 196°C (mm)
5904085
0.85


CURRENT AND PACKING DATA: DC (+)


Size (mm)
5x3504x350
3.15x350
2.5x350
Current Range (Amps)
150-180120-150
80-110
60-70
Weight/Carton (kgs)
2.52.5
2.5
2.5