Inconel 690 (NiCr29Fe) Cold-Rolled Tubes | Stress-Corrosion Cracking Resistant for Nuclear Fuel Assemblies

Inconel 690 rods are composed of a high-chromium nickel alloy renowned for exceptional resistance to various corrosive environments and high-temperature atmospheres. With approximately 30% chromium content, these rods offer outstanding resistance to oxidizing conditions, making them ideal for applications in nuclear power plants, chemical processing, and thermal processing industries. Their robust metallurgical stability and favorable fabrication characteristics ensure reliability and longevity in demanding settings.

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Chemical Composition of Inconel 690 Rods

Mechanical Properties of Inconel 690 Rods

Physical Properties of Inconel 690 Rods

Applications of Inconel 690 Rods

• Nuclear Power Generation: Utilized in steam generator tubes, baffles, and tubesheets due to excellent resistance to high-temperature water and stress-corrosion cracking.​

• Chemical Processing: Ideal for heat exchangers and piping systems handling oxidizing acids and hot gaseous environments.​

• Thermal Processing Equipment: Employed in industrial furnaces and heat-treating equipment requiring high-temperature strength and oxidation resistance.​

• Aerospace Components: Suitable for jet engine parts and other aerospace applications exposed to extreme temperatures and corrosive conditions.​

Frequently Asked Questions about Inconel 690 Rods

Q: What distinguishes Inconel 690 rods from other nickel alloys?

A: Inconel 690 rods have a high chromium content (~30%), providing superior resistance to oxidizing environments and stress-corrosion cracking, especially in high-temperature applications.​

Q: Can Inconel 690 rods be welded easily?

A: Yes, Inconel 690 rods exhibit good weldability using conventional welding techniques, making them suitable for complex fabrications.​

Q: Are Inconel 690 rods suitable for marine environments?

A: While primarily designed for high-temperature oxidizing conditions, Inconel 690 rods also offer good resistance to aqueous corrosion, making them applicable in certain marine environments.​

Inconel 690 rods provide a reliable solution for industries requiring materials that withstand extreme temperatures and corrosive conditions, ensuring performance and durability in critical applications.

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.