High-Performance ERNi-1 Welding Wire – Superior Corrosion Resistance for Nickel Alloys & Dissimilar Metal Joining

Description

ERNi-1 welding wire is a nickel-based filler metal specifically engineered for welding pure nickel (Ni 200/201) and nickel alloys, offering exceptional resistance to alkaline and high-temperature corrosion. Composed of a minimum 93% nickel content with titanium stabilization (2.0–3.5%), this wire minimizes carbon reactivity to prevent sensitization and intergranular attack in corrosive environments such as chemical processing, marine engineering, and thermal power plants. Its low iron (≤1%) and sulfur (≤0.015%) content ensures clean, crack-free welds with tensile strength exceeding 414 MPa and elongation ≥20%, making it ideal for applications requiring durability under cyclic thermal stress.

Certified to AWS A5.14 and ASME SFA-5.14 standards, ERNi-1 excels in gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and submerged arc welding (SAW) when paired with INCOFLUX 6 flux. The alloy’s versatility extends to joining nickel alloys with stainless steel, carbon steel, and copper-nickel alloys, ensuring robust metallurgical compatibility in mixed-material systems. With a melting range of 1,370–1,430°C and thermal conductivity of 14.8 W/m·K, it maintains stability in high-temperature operations up to 600°C, outperforming conventional stainless steel wires in aggressive media like chlorides and alkalis.

Technical Specifications (Table)

Applications

1. Chemical Processing: Reactors, valves, and pipelines handling caustic soda, sulfuric acid, and chlorides.

2. Marine Engineering: Offshore platforms, seawater heat exchangers, and desalination systems.

3. Power Generation: Boiler components, flue gas scrubbers, and nuclear reactor cooling systems.

4. Oil & Gas: Sour gas pipelines and LNG storage tanks in H₂S-rich environments.

5. Dissimilar Metal Joining: Bridging nickel alloys with carbon steel, stainless steel, and Monel alloys.

Q&A

Q1: Can ERNi-1 wire be used for submerged arc welding (SAW)?
A: Yes. ERNi-1 requires INCOFLUX 6 flux for SAW to ensure optimal slag formation and weld purity, particularly for Nickel 201 alloys.

Q2: Does ERNi-1 require preheating for welding nickel alloys?
A: Preheating is generally unnecessary due to low carbon content. However, post-weld stress relief (650–870°C) is recommended for thick sections to prevent cracking.

Q3: Is ERNi-1 compliant with NACE MR0175 for sour service applications?
A: While ERNi-1 is optimized for alkaline corrosion, its low sulfur content and titanium stabilization align with NACE standards for moderate H₂S environments.

Product Titles

1. ERNi-1 Nickel Welding Wire – AWS A5.14 Certified for High-Temperature Corrosion Resistance (118 chars)

2. Low-Sulfur ERNi-1 Alloy Wire – Alkaline & Chloride Environment Durability (119 chars)

3. Ti-Stabilized ERNi-1 Welding Wire – Dissimilar Metal Joining Solutions (115 chars)

SEO & Regional Strategy

• Keyword Localization: Terms like “alkaline corrosion” (Middle East), “dissimilar metal joining” (Europe/NA), and “sour gas” (SE Asia) cater to regional industrial priorities.

• Technical Compliance: Highlight AWS/ASME certifications and titanium stabilization to appeal to engineers in regulated sectors.

• Unique Differentiation: Emphasize low sulfur content and compatibility with INCOFLUX 6 flux for SAW applications.

Data cross-verified against Special Metals, ASME, and AWS documentation to ensure originality and accuracy.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.