Alloy 400

Alloy 400 for Use in High-Pressure Feedwater Heaters (14021)

By Dennis W. Rahoi, reprinted from Proceedings of materials workshops for the powerindustry, Nickel Development Institute, 1993. Figures and tables help to illustrate why Alloy 400 (UNS N04400) is well suited for use in high pressure feedwater heaters. The main reason for its success is its high corrosion-resistance and the stress-relieved temper has excellent mechanical strength and corresponding allowable stress levels.

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