162.    BAUKLOH, W., AND FOROUD, A. K.  [Decarburization of Cast and Malleable Iron in Hydrogen and in Mixtures of Hydrogen and Water Vapor.]  Arch. Eisenhüttenw., vol. 16, 1943, pp. 355-362; Chem. Abs., vol. 37, 1943, p. 6619.

                  Addition of about 2% by volume of H₂O vapor to H₂ decreases the time required for decarburization.  Low contents of Mn have but little effect on H₂ decarburization; 80% ferromanganese could not be decarburized with pure H₂.  The decarburization in gases with oxidizing components is determined mainly by the diffusion velocity of C in the Fe; in annealing in pure H₂ at higher temperatures, the purely chemical reaction between H₂ and C is the slower one and thus determines the decarburization velocity.