ERNiCrMo-15 Nickel Alloy Welding Wire for High Fatigue Resistance
ERNiCrMo-15 is a premium-grade nickel-chromium-molybdenum alloy welding wire developed specifically for joining Inconel 625LCF and other low-cycle fatigue (LCF) resistant alloys. With optimized composition for enhanced thermal fatigue performance, this wire offers superior durability in cyclic high-temperature environments.
It is suitable for TIG (GTAW) and MIG (GMAW) processes and ensures excellent arc stability, low spatter, and crack-resistant welds. ERNiCrMo-15 is widely used in the fabrication of furnace components, aircraft exhaust systems, chemical reactors, and nuclear containment parts subjected to frequent thermal cycling and mechanical strain.
Key Features
- Excellent resistance to low-cycle thermal fatigue cracking
- Improved high-temperature mechanical strength and stability
- Superior resistance to oxidation, carburization, and aggressive chemical attack
- Smooth and clean weld bead with minimal spatter
- Ideal for service temperatures up to 982 °C (1800°F)
- Enhanced metallurgical structure for improved weld durability
- Excellent weldability on Inconel 625LCF and related alloys
- Crack resistance under thermal/mechanical cycling
- Conforms to AWS A5.14 specification for ERNiCrMo-15
Common Names / Designations
- AWS: ERNiCrMo-15
- UNS: N06626
- Trade Name: Inconel 625LCF Welding Wire
- Other Names: Nickel Alloy LCF Wire, High Fatigue Resistance Filler Wire
Typical Applications
- Furnace linings and structural parts
- Heat exchanger bellows and dampers
- Exhaust manifolds in aerospace and automotive
- Pressure vessels exposed to thermal fatigue
- Components in waste incinerators and reactors
- Weld overlay on parts subject to repeated stress/temperature changes
Chemical Composition (% Typical)
| Element |
Content (%) |
| Nickel (Ni) |
Balance (~55-60%) |
| Chromium (Cr) |
20.0 - 23.0 |
| Molybdenum (Mo) |
8.0 - 10.0 |
| Niobium (Nb) + Tantalum (Ta) |
3.15 - 4.15 |
| Iron (Fe) |
≤5.0 |
| Manganese (Mn) |
≤0.50 |
| Silicon (Si) |
≤0.50 |
| Carbon (C) |
≤0.02 |
| Phosphorus (P) |
≤0.015 |
| Sulfur (S) |
≤0.015 |
Mechanical Properties (Typical)
| Property |
Value |
| Tensile Strength |
≥760 MPa |
| Yield Strength |
≥370 MPa |
| Elongation |
≥30% |
| Fatigue Resistance |
Excellent |
| Operating Temp. |
Up to 982°C |
Available Specifications
| Item |
Detail |
| Diameter Range |
0.9 mm - 4.0 mm (custom sizes available) |
| Welding Process |
TIG (GTAW), MIG (GMAW) |
| Packaging |
5kg / 10kg / 15kg spools or straight rods |
| Surface Finish |
Clean, bright, rust-free |
| Label/Branding |
Custom OEM available (barcode, color label, logo, etc.) |
Related Products
- ERNiCrMo-3 (Inconel 625)
- ERNiCrMo-10 (C22)
- ERNiCrCoMo-1 (Inconel 617)
- ERNiFeCr-2 (Inconel 718)
- ERNiCu-7 (Monel 400)