ERNiCrMo-3 refers to a category of heat-resistant welding wire. It is used in construction, metallurgy, oil, medicine, heavy engineering. The weld metal has good impact strength and high resistant to embrittlement. Suitable for welding of dissimilar steels, operating at temperature of 450 – 550 °C. Is applied in an aggressive environmental exposures at high temperature and even at high humidity.
Chemical composition
| Nickel Ni Min 58.0% | Chromium Cr 20.0-23.0% | Molybdenum Mo 8.0-10.0% | Iron Fe 5.0% | Niobium Nb 3.15-4.15% Max | Silicon Si Max 0.5% |
| Copper Cu Max 0.5% | Manganese Mn Max 0.5% | Aluminum Al Max 0.4% | Titanium Ti Max 0.4% | PhosphorusPMax 0.03% | Sulfur SMax 0.015% |
| Carbon C Max 0.1% |
Mechanical properties
| Tensile Strength Rm (MPa) |
Elongation A % |
| min 760 | min 30 |
Product forms
| Product | Diameter (mm) | Length (mm) |
| Wire for MIG/GMAW welding | 0.8, 1.0, 1.2, 1.6, 2.0, 2.4, 2.5, 3.2 | — |
| Rods for TIG/GTAW welding | 2.0, 2.5, 3.2, 4.0, 5.0 | 915 – 1000 |
| Wire for SAW welding | 2.0, 2.4, 3.2, 4.0, 5.0 | — |
| Electrode Core Wire | 2.0, 2.5, 3.20, 3.25, 4.0, 5.0 | 250, 300, 350, 400, 450, 500 |
Applications
Binary Nickel-Iron (Ni-Fe) and Ni based complex welding alloys are supplied in welding rod and wires in standard length or length up to the consumers’ request. For normal service conditions, the chemical compositions are available in various Ni contents according to the most of American and European standards.