Hangbo Alloy Group
Shanghai · Est. 2012
AWS ERNiCrFe-7 / UNS N06052 — Welding wire specifications, parameters, and applications for nickel alloy fabrication.
Inconel 52 (AWS ERNiCrFe-7) is a nickel-chromium-iron welding wire designed for welding of Inconel 690 and for overlay cladding of nuclear pressure vessel components. High chromium content provides excellent resistance to stress corrosion cracking in PWR primary water.
| Parameter | GTAW | GMAW |
|---|---|---|
| Shielding Gas | Argon (99.995%) | Ar + 2% He or Ar + 2% CO2 |
| Gas Flow Rate | 8-15 L/min | 15-25 L/min |
| Wire Diameter | 1.6-3.2 mm | 0.8-1.6 mm |
| Current Type | DCEN | DCEP |
| Welding Position | All positions | Flat / Horizontal |
Inconel 52 welding wire is used in a wide range of demanding applications:
Hangbo Alloy Group supplies Inconel 52 welding wire in the following forms:
| Standard | Description |
|---|---|
| AWS A5.14 | ERNiCrFe-7 |
| ISO 18274 | S Ni 6052 |
| EN ISO 18274 | S Ni 6052 |
| ASME SFA-5.14 | ERNiCrFe-7 |
| Element | Content (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 28.0 – 31.5 |
| Iron (Fe) | 7.0 – 11.0 |
| Niobium (Nb) | 0.50 – 1.00 |
| Manganese (Mn) | 0.30 max |
| Carbon (C) | 0.03 max |
| Property | Typical Value |
|---|---|
| Tensile Strength | 620 MPa (90 ksi) min |
| Yield Strength (0.2%) | 350 MPa (51 ksi) min |
| Elongation | 30% min |
| Service Temperature | up to 650°C (1200°F) |
Values above are typical for as-welded Inconel 52 (ERNiCrFe-7) deposited metal under AWS A5.14 classification requirements. Actual results vary with welding process, heat input and shielding gas.
Follow these practical guidelines to obtain sound, corrosion-resistant welds with this filler metal:
Inconel 52M (ERNiCrFe-7A) has tighter niobium and manganese control to further lower cracking susceptibility; 52 (ERNiCrFe-7) is the earlier generation with similar high-chromium chemistry.
Around 30% chromium is what gives these fillers their resistance to stress corrosion cracking in high-purity reactor water, unlike the lower-chromium Alloy 82/182 family.
Dissimilar joints between low-alloy ferritic steel and austenitic stainless or nickel-base materials, especially in nuclear steam generators and pressuriser nozzles.
AWS ERNiCrFe-7 / UNS N06052: high nickel with about 28-31% chromium, which is the source of its SCC resistance in high-purity water.
AWS A5.14 (ERNiCrFe-7), ISO/EN 18274 (S Ni 6052) and ASME SFA-5.14.
TIG wire 1.6-3.2 mm, MIG spools 0.8-1.6 mm and SAW coils 2.4-4.0 mm.
Pure argon for GTAW; argon with helium or CO2 additions for GMAW.
Nuclear steam-generator tubing and components, overlay cladding on low-alloy steel, and high-chromium nickel component welding.
Keep the wire clean and dry, use low heat input, and follow the qualified welding procedure for nuclear-grade work.
Hangbo Alloy Group supplies Inconel 52 (ERNiCrFe-7) welding wire with full material certifications. We ensure consistent wire quality with precise diameter control, clean surface finish, and uniform feeding performance.
For quotations, material certifications, or technical consultation, contact our sales team or call +86 166 2109 2936.
Request a quotation for Inconel 52 round bars, tubes, plates, or custom products. We stock standard sizes and accept custom orders.