DAIKOWM 92

GMAW
  • NICKEL ALLOYS
92

Description

Solid wire for Nickel based alloys and dissimilar joints
This wire rod is used for joining nickel base alloys (600, 601, 800) to themselves and to stainless steels, carbon steels and Monel alloys. It can be successfully used also for surfacing carbon steels. The high Ti content provides excellent porosity resistance in field welding applications. Typical applications include desalination plants, piping, furnace equipment and petrochemical and power generation plants. Working temperature from cryogenic to 950°C.
Specifications
ISO 18274
S Ni7092
AWS A5.14
ERNiCrFe-6
Shielding
I1, I3
Positions
PA, PB, PC, PD, PE, PF, PG
Current
DC+
Packaging Type
Drums, DIN 760 reel, B300, D200 and D100 spools.
Asme qualifications
F-No (QW432)
43
A-No (QW442)
-

Pren

16.7
Chem. Comp. %
DEFAULT
C
0.05
Mn
2.4
Ni
70
Cr
16.7
P
0.001
S
0.002
Si
0.02
Cu
0.01
Fe
7.3
Ti
3
Mechanical Properties
min
variant
Tensile strength Rm MPa
550*
660
Yield strength Rp0.2 MPa
0
400
Elongation A (L0=5d0) %
0
35
Impact Charpy ISO-V
-
150J @ -50°C
Impact Charpy ISO-V
-
60J @ -196°C
Welding Parameters
1 mm
1.2 mm
Ampere
140A - 200A
150A - 210A
Voltage
23V - 27V
25V - 29V
Packaging
Ø 0,8÷1,6mm
Ø 0,8÷1,6mm
Packaging Type
Drums, DIN 760 reel, B300, D200 and D100 spools.
Drums, DIN 760 reel, B300, D200 and D100 spools.
92
Description

Application

This alloy is employed in the welding of nickel base alloys, facilitating connections to themselves as well as to stainless steels, carbon steels, and Monel alloys. Its notable Titanium (Ti) content contributes to outstanding resistance against porosity, making it particularly well-suited for field welding applications. Common usage scenarios encompass a diverse range, including desalination plants, piping systems, furnace equipment, and installations within petrochemical and power generation plants. Additionally, it finds application in the surfacing of carbon steels, offering a combination of elevated strength and corrosion resistance across a wide temperature spectrum—from cryogenic temperatures to temperatures exceeding 980°C. Noteworthy is the alloy's capability to undergo age hardening, further enhancing its strength, particularly within the temperature range up to about 700°C.

Alloy Type

Nominal composition (wt. %) of this classification is 71 Ni, 16 Cr, 6 Fe, 3 Ti, and 2.5 Mn.

Microstructure

Fully austenitic microstructure with Ti-rich carbides.

Materials

Nickel base alloys to themselves and to stainless steels, carbon steels, Monel alloys and cryogenic 3% e 5% Ni steels.
PROPRIETARY: Inconel® 600, 601, 800 (Special Metals).

Welding & PWHT

In preparation for welding or heating a nickel-base alloy, prioritizing the cleanliness of the base metal is imperative. Contaminants such as oil, grease, paint, and materials containing sulfur or lead pose a risk of inducing cracking (embrittlement) in both the base metal and the weld metal during these procedures. When dealing with fully austenitic and nickel base steels, exercise meticulous control over factors like heat input, interpass temperature, and dilution with the parent metal. Adhere strictly to a low heat input (max 1.5 kJ/mm) and maintain an interpass temperature limit of 100°C to ensure optimal outcomes.

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