Cr20Ni35 Heat-resistant Hastelloy C276 UNS N0276 2.4819 ERNiCrMo-4 Mig Nickel Based Welding Wire Wire

Performancematerial:

Product Introduction

ERNiCrMo-4 nickel based welding wire is a high-performance welding material widely used in the nuclear energy industry. It is mainly used for welding Hastelloy C276 and other nickel chromium molybdenum alloys, and can also be used for surface welding of steel and welding of dissimilar metals, including welding of nickel alloys with steel or stainless steel. This welding wire has excellent corrosion resistance and can maintain good performance in various corrosive media, especially in terms of resistance to pitting and crevice corrosion. The mechanical properties of the deposited metal are also excellent, with a tensile strength of about 730MPa, a yield strength of about 480MPa, and an elongation at break of about 32%. In the field of nuclear energy, ERNiCrMo-4 welding wire can meet the extremely high requirements of equipment for material corrosion resistance and radiation resistance, ensuring the safe and stable operation of nuclear energy equipment.

Specific Applications

In the nuclear energy industry, ERNiCrMo-4 nickel based welding wire is mainly used in the following fields:

• Nuclear reactor components: used for welding pressure vessels, nuclear reactor components, etc. in nuclear power plants, which require long-term operation in high temperature, high pressure, and radiation environments. ERNiCrMo-4 welding wire can provide excellent corrosion resistance and high temperature strength, ensuring the safe operation of the equipment.
• High temperature and high pressure equipment: suitable for welding high temperature and high pressure equipment, such as steam generators and heat exchangers, to ensure long-term stable operation of the equipment under extreme conditions.
• Heterogeneous material welding: used for welding nickel based alloys with dissimilar materials such as stainless steel and low-alloy steel, ensuring the reliability and corrosion resistance of the welded joints.

Advantages and Characteristics

1. Excellent corrosion resistance: ERNiCrMo-4 welding wire exhibits excellent resistance to pitting and crevice corrosion in various corrosive media, and can operate stably for a long time in harsh environments.
2. High temperature strength: It can maintain high strength and mechanical properties in high temperature environments, making it an ideal choice for welding high-temperature alloys and corrosion-resistant alloys.
3. Good welding performance: The melting speed is moderate during the welding process, and there will be no excessive slag or porosity defects, ensuring the quality of the weld seam. At the same time, it has stable arc, beautiful forming, good fluidity of molten iron, and excellent welding process performance.
4. Stress corrosion cracking resistance: Due to its high molybdenum content, it has strong resistance to stress corrosion cracking, pitting corrosion, and crevice corrosion.
5. Multiple welding methods are applicable: suitable for tungsten inert gas welding (GTAW) and metal inert gas welding (GMAW), ensuring reliability and consistency under different welding processes.

Introduce:
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Q&A

Q: What materials is ERNiCrMo-4 welding wire suitable for?
A: ERNiCrMo-4 welding wire is mainly used for welding Hastelloy C276 and other nickel chromium molybdenum alloys, and can also be used for surface welding of carbon steel.
Q: What are the main application areas of ERNiCrMo-4 welding wire?
A: Mainly used in the petrochemical, aerospace, nuclear energy, and chemical industries for manufacturing and repairing high-temperature and high-pressure equipment, pipelines, and valves.
Q: What are the chemical compositions of ERNiCrMo-4 welding wire?
A: The main components include nickel (≥ 50%), chromium (14.5-16.5%), molybdenum (15.0-17.0%), and tungsten (3.0-4.5%).
Q: What are the mechanical properties of ERNiCrMo-4 welding wire?
A: Tensile strength ≥ 760 MPa, yield strength ≥ 420 MPa, elongation ≥ 27%.
Q: What should be noted when using ERNiCrMo-4 welding wire?
A: Before welding, the welding surface needs to be cleaned, protected with small wire energy and high-purity argon gas, appropriately preheated and post heat treated to ensure welding quality.