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Here's a professional English product introduction for UNS N06690 (Inconel 690):

UNS N06690 is a nickel-chromium alloy specifically designed for superior corrosion resistance in high-temperature environments. With approximately 60% nickel and 30% chromium content, it offers exceptional resistance to stress corrosion cracking and oxidation.

Key Characteristics:

• Excellent resistance to oxidizing and reducing media
• Superior performance in high-temperature aqueous corrosion
• Good mechanical properties at elevated temperatures
• Outstanding resistance to chloride-ion stress corrosion cracking

Primary Applications:
• Nuclear Power: Steam generator tubing in pressurized water reactors
• Chemical Processing: Heat exchangers and reaction vessels

• Waste Treatment: Equipment for radioactive waste processing
• Thermal Processing: Furnace components and heat treatment fixtures
• Pollution Control: Flue gas desulfurization systems

The material is available in various forms including tubes, plates, and bars, complying with standards such as ASTM B16336. Its unique composition makes N06690 particularly suitable for critical applications where both high temperature capability and corrosion resistance are essential.