DAIKOWS 208

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  • NICKEL ALLOYS
Pure Nickel

Description

Solid pure nickel wire rod with titanium deoxidation
A nickel based wire rod alloyed with about 3 % Ti for welding of high purity nickel (min 99.6 %Ni), ordinary wrought nickel and nickel with reduced C content. It is also suitable for dissimilar welding of pure nickel to stainless steels, carbon steels, nickel alloys, Monel 400, cupronickel and cast iron. Applications include tanks and vessels, heat exchangers, piping in chemical plant for salt production, chlorination and evaporation of caustic soda and, in particular, wherever corrosion resistance in alkalis is required.
Specifications
ISO 18274
S Ni 2061
AWS A5.14
ERNi-1
Shielding
DAIKOFLUX 960-W
Positions
PA, PB, PC
Current
DC/AC
Packaging Type
K415 spool and drums.
Asme qualifications
F-No (QW432)
41
A-No (QW442)
-
Chem. Comp. %
DEFAULT
C
0.02
Mn
0.4
Ni
96
Al
0.1
P
0.005
S
0.005
Si
0.3
Cu
0.02
Fe
0.1
Ti
3
Mechanical Properties
min
variant
Tensile strength Rm MPa
380*
720
Yield strength Rp0.2 MPa
0
450
Elongation A (L0=5d0) %
0
45
Impact Charpy ISO-V
-
60J @ -196°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.4 mm
Ampere
300A - 410A
Voltage
27V - 33V
Packaging
Ø 1,6÷3,2mm
Packaging Type
K415 spool and drums.
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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