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|1. (WO2017169056) Cr-BASED TWO-PHASE ALLOY AND PRODUCT THEREOF|
|Title:||Cr-BASED TWO-PHASE ALLOY AND PRODUCT THEREOF|
The purpose of the present invention is to provide a two-phase alloy having Cr, which is inexpensive, as the main component thereof and having excellent corrosion resistance, strength characteristics including toughness, and abrasion resistance that exceed those of conventional alloys, even in highly corrosive environments such as oil wells, etc. This Cr-based two-phase alloy has two phases, i.e. a ferrite phase and an austenite phase, mixed therein and is characterized by: the chemical composition of the Cr-based two-phase alloy comprising a main component, an auxiliary component, impurities, a first optional auxiliary component, and a second optional auxiliary component; and the main component comprising 33%-65% by mass Cr, 18%-40% by mass Ni; and 10%-33% by mass Fe.