- Applications
- W-625 is designed for welding of Inconel 600 + 625 and Nickel alloys, 9% Nickel steels.
(LNG storage tank manufacture, desulfurization, Heat exchanger, Building of chemical carrier.)
- Characteristics
-
- - Suitable in pressure vessel fabrication for -196℃ to 550℃, otherwise up to the scaling resistance temperature of 1200℃.
- - The weld metal has high strength at room and elevated temperatures and has exceptional corrosion resistance.
- - It is useful for many dissimilar joints involving inconel alloys, incoloy alloys, stainless steels, low-alloy steel, and carbon steel.
- Notes on Usage
-
- - Use recommended current range. if not it will be much spatters and undercut.
- - Keep the arc as short as possible.
- - Weaving width should be within two and a half times electrode's diameter.
- - When the electrodes have absorbed moisture, dry them at 250~280℃ for 30~60 minutes before use.
- Sizes Available and Recommended Currents ( AC or DC ± )
-
Sizes Available and Recommended Currents ( AC or DC ± )
| Size mm (in) |
3.2 (1/8) |
4.0 (5/32) |
| Length (mm) |
350 (14) |
400 (16) |
| Amp |
F |
90~120 |
120~150 |
| V-up & OH |
80~110 |
100~140 |
- Typical Chemical Composition of All-Weld Metal(%)
-
Typical Chemical Composition of All-Weld Metal(%)
| C |
Mn |
Si |
P |
S |
Cr |
Ni |
Mo |
Cu |
Nb+Ta |
Fe |
| 0.10 |
0.7 |
0.52 |
0.002 |
0.003 |
21.9 |
61.6 |
8.4 |
0.013 |
3.7 |
2.2 |
- Typical Mechanical Properties of All-Weld Metal
-
Typical Mechanical Properties of All-Weld Metal
| T.S (MPa) |
EL (%) |
CVN-Impact Value J
(-196℃) |
| 772 |
40 |
68 |
- Welding positions
