DAIKOWT 82

GTAW
  • NICKEL ALLOYS
82

Description

Rod for nickel-based alloy and dissimilar joints
Rod suitable for both homologous welds and cladding of nickel alloys resistant to high temperatures, compatible with austenitic and ferritic steels. The addition of Mn and Nb ensures high resistance to hot cracking and tolerance to dilution in unions with ferrous alloys. Perfect where toughness and heat resistance are needed, or for welding 3-5% Ni steels used in tanks and plants for liquid gases. Operating range from -269 °C to about 950 °C.
Specifications
EN ISO 18274
S Ni 6082
AWS A5.14
ERNiCr-3
Certifications
CE, TUV
Shielding
I1
Positions
PA, PB, PC, PD, PE, PF
Current
DC-
Packaging Type
5kg carton tube
Asme qualifications
F-No (QW432)
43
A-No (QW442)
-

Pren

20.5
Chem. Comp. %
DEFAULT
C
0.03
Mn
3.1
Ni
72
Cr
20.5
Nb
2.4
P
0.004
S
0.001
Si
0.1
Cu
0.02
Fe
1.3
Ti
0.4
Mechanical Properties
min
variant
Tensile strength Rm MPa
550*
670
Yield strength Rp0.2 MPa
0
420
Elongation A (L0=5d0) %
0
40
Impact Charpy ISO-V
-
160J @ 20°C
Impact Charpy ISO-V
-
80J @ -196°C
Welding Parameters
1.6 mm
2.4 mm
Ampere
80A - 120A
130A - 160A
Voltage
10V - 13V
14V - 18V
Packaging
Ø 1,0÷4,0mm
Ø 1,0÷4,0mm
Packaging Type
5kg carton tube
5kg carton tube
82
Description

Application

These welding metals do not have a directly equivalent base material, however, their composition is similar to Inconel™ 600. The addition of Mn and Nn is designed to ensure high resistance to hot cracking and dilution tolerance, compatible with numerous combinations of ferrous and nickel-based alloys. These metals maintain stable properties over a wide range of operating temperatures, spanning from –269°C up to beyond 900°C. The main applications include heat-resistant nickel-based alloys, ideal for use in
furnace equipment up to about 900°C. This material is also suitable for dissimilar welding between most nickel-based alloys, including Monel 400 and stainless steels, low alloy or C-Mn steels without the need for preheating. Further applications include transition welds between creep-resistant ferritic steels and austenitic steels, such as 2CrMo and 316H, for long-term high-temperature service in petrochemical and power generation plants. Additionally, it is ideal for
low temperature applications, such as cryogenic tanks or pipelines operating at –100°C or below, made with steels containing 3% or 5% Ni. Stress relieving treatment can be performed if necessary. The requirements for preheating and post weld heat treatment (PWHT) depend on the base material being welded. For most nickel-based alloys, no preheating is required.

Alloy Type

Inconel™ 600 type consumables with manganese and niobium additions.

Microstructure

High nickel austenite with some carbides.

Materials

Nickel base alloys to themselves and to mild, low alloy and stainless steels. High temperature transition joints. Cryogenic 3% and 5% Ni steels.
  • PROPRIETARY: Inconel® 600 (Special Metals), Nimonic 75® (Special Metals)

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