Key Features of ENiCrMo-3 ENi625 Nickel Welding Electrode
Low-hydrogen nickel alloy coating for stable DC+ welding performance.
Good crack resistance for nickel-based alloy and dissimilar metal welding.
Excellent high-temperature strength and corrosion resistance in demanding service environments.
Suitable for Alloy 625, Alloy 800, Alloy 825 and nickel-chromium-molybdenum alloy welding.
Can be used for super duplex stainless steel welding when project procedures require nickel alloy electrodes.
Applicable for pressure vessels, chemical equipment, offshore structures, marine components and power generation projects.
What Is ENiCrMo-3 ENi625 Nickel Welding Rod Used For?
ENiCrMo-3 ENi625 nickel welding rod is used for welding nickel-based alloys, iron-nickel-based high-temperature corrosion-resistant alloys and dissimilar metal joints where corrosion resistance, crack resistance and high-temperature strength are required.
Alloy 625 welding: suitable for nickel-chromium-molybdenum alloy components used in corrosion-resistant environments.
Alloy 800 and Alloy 825 welding: used for iron-nickel-based high-temperature and corrosion-resistant alloy parts.
Super duplex stainless steel welding: can be used when nickel alloy weld metal is required by the welding procedure.
Pressure vessels and chemical equipment: suitable for corrosion-resistant welded joints in process equipment.
Offshore and marine components: used where welds must resist chloride-containing and harsh service environments.
Dissimilar metal welding: suitable for selected nickel alloy to stainless steel or nickel alloy to low-alloy steel transition joints, based on project WPS requirements.
Chemical Composition
| Chemical components of deposited metal (%) |
| Item | C | S | Mn | Si | P | Cr | Ni | Mo | Cu | Nb | Fe |
| Example value | 0.047 | 0.003 | 0.35 | 0.41 | 0.006 | 21.33 | Margin | 8.51 | 0.026 | 3.48 | 4.48 |
| Reference current (DC+) |
| Diameter of welding electrode mm | Φ3.2 | Φ4.0 |
| Welding current A | 70-100 | 100-140 |
ENiCrMo-3 vs ENiCrMo-4 vs ENiCrFe-3: How to Choose?
| Product | Main Positioning | Typical Application | Buyer Selection Advice |
| ENiCrMo-3 ENi625 Nickel Welding Electrode | Nickel-chromium-molybdenum electrode for Alloy 625 and corrosion-resistant alloys | Alloy 625, Alloy 800, Alloy 825, super duplex stainless steel and dissimilar metal welding | Choose ENiCrMo-3 when corrosion resistance, high-temperature performance and crack resistance are required. |
| ENiCrMo-4 nickel welding rod | Nickel-chromium-molybdenum electrode for severe corrosion environments | Corrosion-resistant alloy equipment and high-performance nickel alloy welds | Choose ENiCrMo-4 when the project specifies this alloy system or requires stronger corrosion resistance matching. |
| ENiCrFe-3 nickel welding rod | Nickel-chromium-iron electrode for nickel alloys and dissimilar joints | Nickel alloy, stainless steel and selected dissimilar metal welding applications | Choose ENiCrFe-3 when the welding procedure requires a nickel-chromium-iron electrode. |
Welding Notes for ENiCrMo-3 Nickel Alloy Electrode
When using ENiCrMo-3 nickel alloy electrodes, welding parameters should be controlled according to base metal grade, joint design, thickness and project WPS. For corrosion-resistant alloy welding, surface cleanliness, controlled heat input and suitable interpass temperature are important for weld quality.
Use DC+ polarity according to recommended current parameters.
Clean oil, moisture, oxide scale and contamination before welding.
Control heat input to reduce cracking and distortion risks.
Keep electrodes dry before use and follow the project drying procedure if required.
Confirm final welding parameters according to base metal, welding position and project WPS.
FAQ About ENiCrMo-3 ENi625 Nickel Welding Rod
What is ENiCrMo-3 ENi625 nickel welding rod used for?
ENiCrMo-3 ENi625 nickel welding rod is used for Alloy 625, Alloy 800, Alloy 825, nickel-based corrosion-resistant alloys, super duplex stainless steel and selected dissimilar metal welding applications.
Can ENiCrMo-3 be used for Alloy 625 welding?
Yes. ENiCrMo-3 is commonly selected for Alloy 625 and nickel-chromium-molybdenum alloy welding applications where corrosion resistance and high-temperature performance are required.
What polarity should be used for ENiCrMo-3 nickel welding electrode?
Minghua ENiCrMo-3 ENi625 nickel welding electrode is used with DC+ polarity according to the recommended current parameters.
What is the recommended current for ENiCrMo-3 welding rod?
As a reference, Φ3.2 mm uses 70-100 A and Φ4.0 mm uses 100-140 A with DC+ polarity. Final welding parameters should follow the project WPS, base metal thickness and welding position.
