Potential materials options and corrosion mitigation methods for the construction of hydrocarbon production facilities are limited and subject to a number of considerations. While carbon and low alloy steels (CLASs) alone or in combination with corrosion prevention systems may be suitable for some applications, another category of alloys, containing varying principal alloying elements including Fe, Cr, Ni and Mo, has emerged as an alternative choice. Generally, these fall within the category of corrosion-resistant alloys (CRAs). They may be economic alternatives to CLASs when metal-loss corrosion makes the latter unreliable for the required service life.