DAIKO 141

SMAW
  • NICKEL ALLOYS
Pure Nickel

Description

Pure nickel covered electrode
Electrode used for welding of pure nickel, cast iron, welding the clad side of nickel-clad steel and surfacing of steel wherever corrosion resistance in alkalis is required. The reaction of titanium with carbon in the weld metal holds free carbon to a low level so that the electrode can be used with low-carbon nickel (Nickel®200 and 201). The electrode is also suitable for dissimilar welding and various iron-base and nickel-base alloys. Excellent operability for groove and fillet welding in the down hand position.
Specifications
ISO 14172
E Ni 2061
AWS A5.11
ENi-1
Shielding
-
Positions
PA, PB, PC, PD, PE, PF
Current
DC+
Packaging Type
Carton box and tube.
Asme qualifications
F-No (QW432)
41
A-No (QW442)
-
Chem. Comp. %
DEFAULT
C
0.02
Mn
0.3
Ni
96.7
Al
0.03
P
0.01
S
0.01
Si
0.48
Cu
0.01
Fe
0.4
Ti
1.2
Mechanical Properties
min
variant
Tensile strength Rm MPa
410
430
Yield strength Rp0.2 MPa
200
280
Elongation A (L0=5d0) %
18
30
Impact Charpy ISO-V
-
130J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.5 mm
3.2 mm
4 mm
4.8 mm
Ampere
50A - 80A
80A - 110A
110A - 150A
150A - 200A
Voltage
-
-
-
-
Packaging
60 pcs/kg
29 pcs/kg
19 pcs/kg
13 pcs/kg
Packaging Type
Carton box and tube.
Carton box and tube.
Carton box and tube.
Carton box and tube.
Description

Application

Characterized by a composition of low-carbon pure nickel with a strategic addition of titanium for refinement and deoxidation, this filler metal excels in various welding applications. Its proficiency extends to joining pure nickel, creating buffer layers, and contributing to the cladding of joint faces and flanges. The solid wire variant stands out for its remarkable proficiency in welding cast iron, resulting in a soft deposit characterized by low strength. These consumables find utility in critical scenarios, benefiting tanks, vessels, process pipework, and heat exchangers. Chemical plants engaged in salt production, chlorination processes, and caustic soda evaporation particularly value their application. Additionally, their corrosion-resistant attributes make them indispensable for handling aggressive substances such as corrosive alkalis and halides. With an operational temperature range extending up to 150°C, these consumables demonstrate their mettle without necessitating post-weld heat treatment (PWHT).

Alloy Type

Low carbon pure nickel weld metal with titanium de-oxidation.

Microstructure

In the as-welded condition the microstructure consists of almost pure nickel austenite. It is strongly ferromagnetic at room temperature.

Materials


EN W.Nr.: 2.4066 (Ni 99.6), 2.4068(LC-Ni99), 2.4061 (LC Ni 99.6).
UNS: N02200, N02201.
PROPRIETARY: Nickel 200, 201 (Special Metals), Nickel 99.6, 99.2 (VDM).

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