Equivalent to: GB/T 15620 SNi6625 AWS A5.14 ERNiCrMo-3 ISO 18274 SNi6625
Characteristics and Applications
MSM-WNi6625 welding wire is mainly used for welding Inconel 625 alloy, Incoloy 825/25-6Mo alloy and other molybdenum-containing stainless steels via MAG, MIG, TIG, CMT or plasma welding processes, and it can also be applied to surfacing welding on steel surfaces. Additionally, this welding wire is suitable for submerged arc welding, which can be adopted for welding Inconel 625 alloy or nickel steel, as well as surfacing welding on steel surfaces. The weld metal features high strength within a wide temperature range and excellent resistance to localized corrosion such as pitting corrosion and crevice corrosion. TP-WNi6625 welding wire boasts a broad application scope and is applicable for dissimilar material welding, including the joining of Inconel series alloys and Incoloy series alloys.
Precautions
1.When adopting MIG, TIG or other applicable welding processes, the shielding gas can be pure argon, argon-rich mixture gas or other suitable gases.
2.Thoroughly clean oil stains, moisture, dust, oxide films and other contaminants from the groove and its adjacent areas before welding.
3.The welding site shall be equipped with effective wind shielding to avoid compromising the shielding gas performance.
4.For multi-pass welding, the interpass temperature shall not exceed 100℃.
5.When conducting non-consumable electrode filler wire welding (e.g., TIG, plasma, laser welding), the shielding gas shall be 99.99% pure argon.
Typical Chemical Composition of Welding Wire (wt%):
| C | Si | Mn | P | S | Cr | Ni | Mo | Fe | AI | Ti | Nb+Ta |
Typical Value | 0.10 | 0.50 | 0.50 | 0.02 | 0.02 | 20.0-23.0 | rem. | 8.0-10.0 | 5.0 | 0.40 | 0.40 | 3.15-4.15 |
Standard Value | 0.011 | 0.13 | 0.09 | 0.001 | 0.0005 | 22.17 | rem. | 9.07 | 0.17 | 0.11 | 0.19 | 3.69 |
Typical Mechanical Properties of Deposited Metal:
| Tensile Strength (MPa) | Elongation (%) |
Standard Value | 760 | 30 |
Typical Value | 812 | 34 |
Recommended Welding Parameters: (DC')
Wire Diameter(mm) | 1.2 | 1.6 |
Welding Current(A) | 50-280 | 60-320 |
Wire Stick-out(mm) | 10-20 | 15-25 |
Gas Flow Rate(L/min) | 15-20 | 20-25 |