MasterWeld MW-52M ERNiCrFe-7A MIG Welding Wire
Premium Nickel-Chromium-Iron MIG Welding Wire for Alloy 690 and Critical Corrosion-Resistant Applications
MasterWeld MW-52M ERNiCrFe-7A MIG Welding Wire is a high-quality nickel-chromium-iron solid MIG wire designed for the gas metal arc welding of INCONEL® Alloy 690 and similar nickel-based alloys. It is also suitable for overlaying carbon steels and stainless steels where a nickel-chromium corrosion-resistant surface is required.
This specialist nickel alloy welding wire is particularly suited to demanding applications where excellent resistance to stress corrosion cracking, oxidising acids and high-temperature corrosion is required. It is widely used within nuclear, power generation, petrochemical, chemical processing and other critical engineering sectors.
MasterWeld MW-52M contains controlled additions of boron and zirconium to help minimise the tendency for ductility-dip cracking, while also offering excellent resistance to oxide floaters and inclusions. This makes it an excellent choice for applications where weld integrity, corrosion resistance and long-term reliability are essential.
Key Features
- Premium nickel-chromium-iron MIG welding wire
- Suitable for welding INCONEL® Alloy 690 and similar nickel alloys
- Ideal for corrosion-resistant weld overlay on carbon and stainless steels
- Excellent resistance to stress corrosion cracking
- Good resistance to oxidising acids
- Useful for dissimilar joints involving INCONEL® and INCOLOY® alloys
- Contains boron and zirconium to help minimise ductility-dip cracking
- Excellent resistance to oxide floaters and inclusions
- Stable arc performance and reliable wire feedability
- Suitable for critical fabrication, repair and maintenance applications
Typical Applications
- Welding of INCONEL® Alloy 690
- Nuclear power plant components
- Pure water nuclear environments
- Corrosion-resistant weld overlays
- Overlaying carbon steels and stainless steels
- Chemical and petrochemical processing equipment
- Components exposed to oxidising acid environments
- Dissimilar metal welding involving INCONEL® and INCOLOY® alloys
- Heat exchangers, pressure vessels and process plant equipment
Suitable Base Materials
MasterWeld MW-52M ERNiCrFe-7A is commonly used for welding nickel-chromium-iron alloys such as INCONEL® Alloy 690, as well as for dissimilar welding and weld overlay applications involving nickel alloys, stainless steels and carbon steels.
Classification
| AWS Classification |
AWS A5.14 ERNiCrFe-7A |
| UNS Number |
UNS N06054 |
| ASME Classification |
ASME II, Part C, SFA-5.14 ERNiCrFe-7A |
| ASME IX |
F-No. 43 |
Limiting Chemical Composition (%)
| Element |
Composition |
| Nickel (Ni) | Remainder |
| Chromium (Cr) | 28.0 - 31.5 |
| Iron (Fe) | 7.0 - 11.0 |
| Niobium (Nb) | 0.50 - 1.00 |
| Manganese (Mn) | 1.0 max |
| Titanium (Ti) | 1.0 max |
| Aluminium (Al) | 1.10 max |
| Silicon (Si) | 0.50 max |
| Molybdenum (Mo) | 0.50 max |
| Carbon (C) | 0.04 max |
| Copper (Cu) | 0.30 max |
| Cobalt (Co) | 0.12 max |
| Phosphorus (P) | 0.02 max |
| Sulphur (S) | 0.015 max |
| Zirconium (Zr) | 0.02 max |
| Boron (B) | 0.005 max |
| Others | 0.50 max |
Minimum Mechanical Properties
| Tensile Strength |
552 MPa / 80,000 psi |
| Elongation |
30% (4d) |
Welding Process
MasterWeld MW-52M ERNiCrFe-7A is suitable for MIG / GMAW welding applications. For best results, use an appropriate shielding gas, clean parent material thoroughly before welding and follow a qualified welding procedure suitable for the base material and application.
Available Size
- 1.2mm diameter
- 15kg spool
Why Choose MasterWeld MW-52M?
MasterWeld MW-52M ERNiCrFe-7A MIG Welding Wire has been selected for professional fabricators, maintenance engineers and specialist welding applications where performance cannot be compromised. Its combination of nickel-chromium corrosion resistance, resistance to stress corrosion cracking and improved resistance to ductility-dip cracking makes it a dependable choice for demanding environments.
Whether used for welding Alloy 690, producing corrosion-resistant overlays or joining dissimilar nickel alloys, MasterWeld MW-52M provides the consistency and reliability required for high-integrity welding applications.
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MW-52M 1.2mm MIG Inconel 52M (ERNiCrFe-7A) 15KG Spool
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