The ferritic structure of SEA-CURE stainless steel provides a high strength/low work hardening material with good ductility. These properties allow high design stress limits with good fabrication characteristics. Because of the nickel addition, SEA-CURE has a lower ductile-to-brittle transition temperature than similar ferritic steels without nickel additions.

This alloy is specifically designed for applications where chloride induced pitting, crevice and stress corrosion cracking may be encountered.

Plymouth SEA-CURE stainless steel is used in electric power plant condensers and feedwater heaters, various heat exchangers in chemical, petrochemical and refining applications, desalination heat exchangers and flue gas handling systems such as the secondary heat exchangers in high efficiency furnaces. The American Gas Association has approved SEA-CURE for flue gas condensate applications. SEA-CURE stainless steel has better resistance to general corrosion over a broader range of conditions than the austenitic stainless steels.

Resistance to a number of strong acids was evaluated using the Materials Technology Institute of the Chemical Process Industries procedures. Representative data are given below-

SEA-CURE stainless has excellent resistance to all types of erosion. It is not effected by high water velocities caused by tube blockage or mechanical design, nor by steam impingement. Compared to Type 316 it has only 25% of the weight loss in an eroding environment. In sand
abrasion/erosion tests SEA-CURE stainless performs extremely well. This test, reported in Table 15, using silica sand and pH 8 synthetic seawater at 110 degrees Fahrenheit (43 degrees Celsius), indicates that both SEA-CURE stainless and titanium grade 2 have over 3.5 times the resistance of 90-10 copper-nickel and 1.3 times that of AL-6XN.