DESCRIPTION
V-NiCrMo-3 is a nickel-chromium-molybdenum flux-coated electrode designed for shielded metal-arc welding of Inconel® 625 or 601, for high strength welds on 9% nickel steels and for overlaying carbon steel. V-Ni CrMo-3 is also used for joining dissimilar combinations of steels or stainless steels to nickel-iron-chromium alloys such as Incoloy® 800 or 801.
APPLICATIONS
More common uses of V-Vi CrMo-3 include the nuclear industry where it is used for pressure vessel superheaters, steam separators and tube plates. This electrode is commonly used in cryogenic installations; chemical and petrochemical applications; and for heat treatment and case hardening industrial furnace parts. More specific uses include joining Inconel® 625, 718, X-750 and 760 to 9% nickel steels; for welding Incoloy® 825 to carbon steel, stainless steel and low alloy steel; for joining Inconel® 625, Monel® K-500, Incoloy® 800 and 825 to Inconel® 706, 718 and X-750; and for joining Inconel® 825 and 800.I
INSTRUCTION FOR WELDING
(1) Its weldability is as same as austenitic stainless steels.
(2) Keep the interlayer temperature under 100ºC and cool it as fast as possible.
(3) Keep the welding current as low as possible.
(4) Dry the electrodes at 150 ~ 200ºC for 30 ~ 60 minutes before use.
TYPICAL ANALYSIS OF ALL WELD DEPOSIT:
C |
Si |
Mn |
Fe |
Ni |
Mo |
Nb&Ta |
|
|
0.06 |
0.44 |
0.73 |
5.07 |
60.18 |
8.75 |
3.50 |
|
|
TYPICAL ALL WELD MECHANICAL PROPERTIES:
Yield Point
N/mm2 (Ksi) |
Tensile Strength
N/mm2 (Ksi) |
Elongation
% |
|
441 (64) |
770 (112) |
40 |
|
RECCOMMENDED CURRENTS: Ampere (AC/DC+)
Size |
Dia |
3.2 |
4.0 |
5.0 |
(mm) |
Length |
350 |
350 |
350 |
Current
Range |
Flat |
70-110 |
100-150 |
130-180 |
Vertical & OH |
65-105 |
95-140 |
- |
WELDING POSITIONS:
FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD
Packing: in 5Kg plastic container, then 4 5kg containers in master carton box
Other special requests for packing such as plastic container ands vacuum packed plastics and even sealed steel cans can be accommodated. |
