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Full text of "Metallurgy Of Cast Iron"

FIG. 9S-—GUN METAL.     SILICON I.lg;   SULPHUR .055.
No. 2.                No. 3.                         No. 4.                       No. 5.
FIG. 96.—CHILL ROLL.      SILICON -77;  SULPHUR .058.
No. 6.
No. 7.
No. 8.
No. 9.
FIG. 97.—CAR WHEEL IRON.      SILICON .66;   SULPHUR .127.
D
D
No. 10.             No. n.               No. 12.                        No. 13.
KI(:-  98.—HEAVY MACHINERY IRON.      SILICON i.5OJ   SULPHUR .IIO.
No. 14,              No. 15.
No. 16.
.   No. 17.lline. In the one-inch square bars the corners, as may be seen, are much deeper in combined carbon or dense in i^rain than on .the flat surface, as seen at A !>, Pii^s. 97 and 98, and instead of its skin or shell bein^ an even thickness or of a uniform texture, as seen in the round bars at D and R, Pii^s. 97 and 98, it is very irregular. Furthermore, although the square bars arc of about the same area as the round bars, still we find the latter has the greatest body of metal in the ^ra-phitic form.