The ERNiCr-3 welding wire is a versatile and high-quality product designed to meet the demanding requirements of various industrial welding applications. Conforming to the Chinese specification GB/T 15620 SNi6082 and the international standards AWS A5.14, ERNiCr-3, ASME II, SFA-5.14, ERNiCr-3, and AMS 5836, this wire is a trusted choice for professionals engaged in Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), and Submerged Arc Welding (SAW).

Applications

ERNiCr-3 is specifically formulated for welding nickel-chromium-iron alloys, including Inconel 600, Inconel 601, Inconel 690, Incoloy 800, and Incoloy 800HT. It is also highly effective for dissimilar welding applications, such as joining Inconel alloys, Incoloy alloys, and Incoloy 330 to nickel, Monel alloys, stainless steels, and carbon steels. Furthermore, it serves as an excellent material for welding stainless steels to nickel alloys and carbon steels, ensuring strong, reliable bonds across a wide range of base metals.

Chemical Composition

The superior performance of ERNiCr-3 is largely attributed to its carefully controlled chemical composition, which provides exceptional resistance to heat, oxidation, and corrosion. The main elements and their respective percentages are as follows:

Nickel (Ni): ≥67%

Chromium (Cr): 18-22%

Iron (Fe): ≤3.0%

Niobium (Nb): 2.0-3.0%

Titanium (Ti): ≤0.75%

Carbon (C): ≤0.05%

Manganese (Mn): 2.5-3.5%

Silicon (Si): ≤0.5%

Sulfur (S): ≤0.015%

Phosphorus (P): ≤0.015%

Copper (Cu): ≤0.50%

This precise blend ensures the wire delivers consistent weld quality and optimal mechanical properties, making it an ideal choice for critical applications.

Mechanical Properties

The ERNiCr-3 welding wire offers robust mechanical performance, with a minimum tensile strength of 80,000 psi (552 MPa) and an elongation percentage of 30%. These properties ensure that the welded joints are strong, durable, and capable of withstanding harsh operating environments.

Product Forms and Specifications

To cater to various welding requirements, ERNiCr-3 is available in multiple forms and sizes:

Straight Rods (TIG): Available in diameters ranging from 1.2mm to 3.2mm, these rods are ideal for precision applications requiring Gas Tungsten Arc Welding (GTAW).

Spooled Wire (MIG): Offered in diameters from 0.8mm to 1.2mm, this spooled wire is designed for Gas Metal Arc Welding (GMAW), providing consistent feeding and minimal downtime during welding operations.

Both forms are meticulously manufactured, with spooled wire precision layer wound for optimal handling and performance.

Conclusion

ERNiCr-3 welding wire is a premium product engineered for high-performance applications across a variety of industries. Its excellent chemical composition, mechanical properties, and availability in different product forms make it the ideal choice for welding nickel-chromium-iron alloys and other challenging materials. Whether for aerospace, power generation, or chemical processing, ERNiCr-3 delivers the reliability and quality needed to achieve superior welds and extend the life of critical components.