ERNi-1，Pure nickel welding wire

ERNi-1 is a pure nickel welding material, which is very suitable for welding industrial pure nickel and performs well in dissimilar metal joining and corrosion resistance. ERNi-1，Pure nickel welding wire

ERNi-1，Pure nickel welding wire——Key Information:

❶ Compliant Standards:
US Standard: AWS A5.14 ERNi-1
China Standard: GB/T SNi2061
European Standard: ISO 18274-SNi2061

❷ Main Applications: Welding industrial pure nickel (e.g., UNS N02200, N02201), joining dissimilar metals (e.g., nickel and steel), surface cladding

❸ Applicable Processes: Tungsten Inert Gas Welding (TIG), Gas Metal Arc Welding (GMAW)

❹ Key Characteristics: Excellent welding process performance, aesthetically pleasing weld formation, excellent resistance to alkali corrosion, good crack resistance

🔩 Chemical Composition and Mechanical Properties

Please click the product link to view the ERNi-1 datasheet：https://www.akweld.com/wp-content/uploads/2025/08/ERNi-1.pdf

Composition Interpretation: High nickel content ensures corrosion resistance matching the base material; titanium is a key element, effectively deoxidizing and reducing weld porosity.

• Mechanical Properties (Example Values ​​of Deposited Metal):

• Tensile Strength: 541 MPa

• Yield Strength: 340 MPa

• Elongation: 36.0%

🛠️ ERNi-1，Pure nickel welding wire——Main Application Areas

ERNi-1 welding wire excels in the following applications due to its properties:

❶ Pure Nickel Equipment Welding: Used for manufacturing or repairing chemical containers, pipes, etc., made of 200 or 201 pure nickel.

❷ Dissimilar Metal Joining: A reliable choice for joining nickel-based alloys with stainless steel or carbon steel, and also used for welding dissimilar materials such as Monel alloys and copper-nickel alloys.

❸ Surface Overlay Welding: Can be overlaid on carbon steel surfaces to form a corrosion-resistant pure nickel layer, combining economy and performance.

❹ Specific Industries: Particularly suitable for environments requiring resistance to alkali corrosion, and commonly used in chemical, power, and marine engineering fields.

💡 Key Points for Welding Operations

Welding nickel-based materials differs significantly from welding steel and requires special attention:

❶ Thorough Pre-Welding Cleaning: Oil, rust, moisture, and oxides must be thoroughly removed from the bevel and welding wire surface. Any impurities can cause porosity in the weld.

❷ Controlling Heat Input: Use a lower welding current and a lower interpass temperature (recommended below 150°C) to avoid coarse weld grains and cracking.

❸ Maintaining a Short Arc: Use a short arc whenever possible during welding. This helps control the molten pool and reduces spatter.

❹ Using a Suitable Shielding Gas: Use high-purity argon as the shielding gas to ensure weld quality.