2.25Cr1Mo alloy steel

2.25Cr1Mo alloy steel (ASTM A387 Grade 22)(UNS K21590) is formulated with the addition of chromium and molybdenum to be ferritic steel with good corrosion resistance and toughness. It has good irradiation-induced embrittlement which ever was examined by punch and charpy testing techniques by Truer engineers.

2.25Cr1Mo alloy steel was extensively employed as plates for boiler and pressure vessel applications 

2.25Cr1Mo alloy steel will precipitate some carbides during long term service which can adversely affect its fracture toughness and high-temperature creep resistance. But many studies have focused on creep rupture analysis and the prediction of service lifetime. It showed solute depletion has significant influence on the degradation leaded by carbide precipitate, which is likely due to the decrease of the amount of solid solution elements in the matrix. But the parts produced by AM method using 2.25Cr1Mo gas atomized powder will solve this problem because of finer grain size to suppress the precipitation along the grain boundaries.

Chemical Composition of Truer 2.25Cr1Mo alloy steel powder:

Particle Size Distribution (PSD) of Truer 2.25Cr1Mo alloy steel powder:

Our particle size range normally can be 0-200um, including common range 15-53um, 20-65um, 53-106um and 53-150um. Other particle size distribution also can be provided per customer specification.

Below is our COA (datasheet) of 2.25Cr1Mo powder with PSD 45-90um produced by vacuum gas atomizing process with production batch No. 20240629-01, including chemical composition and some typical powder properties.