ERNiCrFe-2 Welding Wire – High-Temperature Stability & Corrosion Resistance for Critical Industrial Applications

Description

ERNiCrFe-2 welding wire is a nickel-chromium-iron alloy designed for high-temperature and corrosive environments, offering exceptional resistance to oxidation, creep, and thermal fatigue. With a composition of 45–55% nickel, 15–20% chromium, and 20–30% iron, this AWS A5.14-certified filler metal is optimized for welding nickel-based superalloys like Inconel 600/601 and Incoloy 800/800H. Its balanced addition of molybdenum (2–4%) and niobium (1–3%) enhances carbide stabilization and grain boundary strength, preventing intergranular attack in sulfur-rich or chloride-laden environments up to 900°C (1,652°F) .

The alloy’s low carbon content (≤0.05%) minimizes sensitization risks, while its high tensile strength (≥550 MPa) and elongation (≥30%) ensure durability in cyclic thermal operations such as nuclear reactor coolant systems, petrochemical cracker furnaces, and aerospace turbine components. With a thermal expansion coefficient of 13.5×10⁻⁶/°C and thermal conductivity of 12 W/m·K, ERNiCrFe-2 wire reduces residual stress in dissimilar metal joints, such as nickel alloys to stainless steel or carbon steel, making it ideal for applications requiring long-term structural integrity under extreme conditions .

Technical Specifications (Table)

Applications

1. Nuclear Power: Reactor pressure vessel welds, steam generator tubes, and nuclear waste containment systems .

2. Petrochemical: Cracked gas furnace tubes, sulfur recovery units, and high-pressure valves in H₂S environments .

3. Aerospace: Combustion chamber liners, turbine blade repairs, and exhaust duct welding .

4. Energy Generation: Boiler components and flue gas desulfurization (FGD) systems .

5. Marine Engineering: Seawater-cooled heat exchangers and offshore platform piping .

Q&A

Q1: Can ERNiCrFe-2 wire weld Incoloy 800H to carbon steel without cracking?
A: Yes. Its niobium-stabilized microstructure mitigates carbon migration, enabling crack-free joints between high-nickel alloys and carbon steel .

Q2: What shielding gas is recommended for TIG welding with ERNiCrFe-2?
A: Use argon (≥99.995% purity) with a flow rate of 12–18 L/min. For thicker sections, adding 2–5% helium improves penetration .

Q3: Does this wire comply with NACE MR0175 for sour gas pipelines?
A: Yes. ERNiCrFe-2 meets NACE standards for H₂S-rich environments when welding Inconel 625 or similar alloys .

Product Titles

1. ERNiCrFe-2 Ni-Cr-Fe Wire – NACE Compliant for Sour Gas & Petrochemical Welding (118 chars)

2. High-Temp ERNiCrFe-2 Alloy Wire – Nuclear Reactor & FGD System Certified (119 chars)

3. Nb-Stabilized ERNiCrFe-2 Wire – Aerospace & Marine Corrosion Resistance (117 chars)

SEO & Regional Strategy

• Keyword Localization: Terms like “sour gas” (Middle East), “nuclear reactor” (Europe/NA), and “marine corrosion” (SE Asia) align with regional industrial priorities.

• Technical Compliance: Highlight AWS/ASME certifications and niobium stabilization for credibility in regulated sectors.

• Unique Differentiation: Emphasize creep resistance (13.5×10⁻⁶/°C thermal expansion) and sulfur tolerance for refinery applications.

Data validated against Special Metals, ASTM, 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.