Nickel base electrode highly corrosion resistant
Basic coated electrode with an alloyed core wire for welding of Nickel-Chromium-Molybdenum alloys to themselves and to lower alloyed steels as well as for welding of special austenitic stainless steels. Good weldability in all positions, except vertical down; stable arc, medium slag removal, regular weld beads. Due to its composition the weld metal is highly resistant to corrosion and presents a high yield and a high tensile strength.
Main applications: Welding of Off-shore components, boilers, vessels, piping systems in the chemical and petrochemical industries as well as components of flue gas desulfurizing plants.
Note:”Inconel625” is a registered trade name of Inco Alloys.
UNS |
Alloys |
DIN |
Material N° |
K81340 |
9%Ni |
X8Ni9 |
1.5662 |
N06625 |
625 |
NiCr22Mo9Nb |
2.4856 |
N08825 |
825 |
NiCr21Mo |
2.4858 |
N08904 |
904L |
X1NiCrMoCuN25 20 5 |
1.4539 |
N08926 |
254SMo |
X1NiCrMoCuN25 20 6 |
1.4529 |
AWS A5.11 | UNS | EN ISO 14172 |
---|---|---|
E NiCrMo-3 | W86112 | E-Ni6625 (NiCr22Mo9Nb) |
C | Si | Mn | Cr | Nb | Fe | Mo | Ni |
---|---|---|---|---|---|---|---|
<0.04 | 0.4 | 0.6 | 22.0 | 3.4 | 3.0 | 9.0 | Rest |
Rm (MPa) | Rp0.2 (MPa) | A5 (%) | KV (J) |
---|---|---|---|
>760 | >450 | >30 | +20°C >70 |
Diámetro | 2.5x300 | 3.2x350 | 4.0x350 |
---|---|---|---|
Piezas / estuche | 222 | 143 | 96 |
Piezas / paquete | 888 | 572 | 384 |
Kg 1000 electr. | 18 | 35 | 52 |
Estuche / paquete | 4 | 4 | 4 |
Kg / estuche | 4 | 5 | 5 |
Kg / paquete | 16 | 20 | 20 |
A | 50-70 | 70-100 | 90-120 |
---|
Redrying 1 h at 250-300°C. Joints to weld must be clean, exempt from grease, cracks. Guide electrodes with a slight declination, weld with a short arc and prevent a high heat input by applying the stringer bead technique (weaving max. 2 times core wire diameter). Nickel base alloys are welded without preheating and an interpass temperature <150°C.
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