4J36 UNS K93600 Invar 36 Nickel Based 400 K500 Monel Welding Wire For Power Industry

4J36 UNS K93600 Invar 36 Nickel Based 400 K500 Monel Welding Wire For Power Industry

Product Introduction

ERNiCu-7 nickel based welding wire is a high-performance welding material that has a wide range of applications in the power industry. It is mainly used for welding copper nickel alloys and specific bronze materials, which are commonly used in power equipment to manufacture conductive and corrosion-resistant components. ERNiCu-7 welding wire has excellent welding process performance, beautiful weld formation, outstanding mechanical properties of deposited metal, and excellent resistance to pitting corrosion, stress corrosion, and high-temperature oxidation. ERNiCu-7 welding wire can provide a reliable welding solution in corrosive environments such as flue gas desulfurization systems in the power industry, ensuring the long-term stable operation of equipment.

Parameter

Specific Applications

• Welding MONEL 400 alloy: ERNiCu-7 welding wire is mainly used for welding MONEL 400 alloy itself, as well as welding different materials between MONEL 400 alloy and steel. In the power industry, this applies to welding and repairing MONEL 400 alloy components in power generation equipment, such as pipelines, valves, etc.
• Surface welding: ERNiCu-7 welding wire can be used to weld the surface of steel using submerged arc welding method, usually requiring a buffer layer (such as 61 alloy) to be deposited by manual arc welding method first. This is used in the power industry to improve the corrosion resistance and wear resistance of steel components, such as boiler water-cooled walls, flues, etc.

Advantages and Characteristics

1. Excellent corrosion resistance: ERNiCu-7 welding wire has excellent corrosion resistance and is very suitable for application in common corrosive environments in the petrochemical and marine industries. Nickel forms a protective oxide layer on the surface of the material, preventing corrosive elements from reaching the underlying substrate, while the addition of chromium further enhances corrosion resistance. This double-layer protection ensures long-term durability and reliability in harsh environments with severe corrosion.
2. Good mechanical properties: The deposited metal of ERNiCu-7 welding wire has good mechanical properties, with tensile strength>530 MPa, yield strength>360 MPa, and elongation ≥ 34%. These properties ensure the strength and toughness of the weld, making it suitable for high-strength welding applications.
3. High temperature stability: ERNiCu-7 welding wire has good stability in high temperature environments, with a melting range of 1325-1370 ° C, suitable for welding and surfacing in high temperature environments.
4. Welding process performance: ERNiCu-7 welding wire has excellent welding process performance, beautiful weld formation, and is suitable for various welding methods such as tungsten inert gas welding (TIG), melting electrode gas welding (MIG), and submerged arc welding (SAW).

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Customization

This is a series of welding wire products including ERNiCrMo-3, ERNiCrMo-4, ERNiCrMo-13, ERNiCrFe-3, ERNiCrFe-7, ERNiCr-3, ERNiCr-7, ERNiCu-7 and ERNi-1.

Nickel welding wire is available in different grades and specifications depending on specific application requirements. Various nickel alloy welding wires (such as ERNiCr-3, ERNiCrMo-3, etc.) and pure nickel welding wires (such as ERNi-1, ERNi-2, etc.) can be selected according to specific alloy composition and performance requirements.

In short, nickel welding wire is an important welding material with excellent welding performance and adaptability. It plays an important role in various industrial fields, providing reliable welding solutions for manufacturing and maintaining high-quality metal structures.

Welding precautions

1. Clean the welding surface: The welding area must be thoroughly cleaned of surface impurities such as oil stains, rust, and moisture.
2. Control welding parameters: When welding, use small line energy and it is recommended to use a smaller inter pass temperature.
3. Gas protection: The purity of the argon gas used should be above 99.99%, and the flow rate of the gas should be appropriately controlled to prevent oxidation and porosity of the weld seam.

Q&A

Q:What is the welding performance of ERNiCu-7 nickel based welding wire?
A:ERNiCu-7 nickel based welding wire has excellent welding process performance, beautiful weld formation, outstanding mechanical properties of deposited metal, and excellent resistance to pitting corrosion, stress corrosion, and high-temperature oxidation. Specifically, the weld metal formed using ERNiCu-7 welding wire has similar properties to MONEL 400 alloy, high strength, and strong corrosion resistance in various media, including seawater, salts, and reducing acids. When using this welding rod to weld MONEL K-500 alloy, the strength is lower than that of the base metal because the filler metal in the weld cannot produce age hardening effect.
Q:What is the strength of ERNiCu-7 welding wire when welding K-500 alloy?
A:When welding K-500 alloy with ERNiCu-7 welding wire, the filler metal in the weld seam cannot produce age hardening effect, so the strength is lower than that of the base metal.
Q:What is the welding temperature range of ERNiCu-7 welding wire in the power industry?
A:The welding temperature range of ERNiCu-7 welding wire is generally between 1100-1200 degrees Celsius.