MKTAU.r KC;V OF CASY IKON.
TAHLR G-I20.—TESTS nK CAR WIIKI'.I, IRON.
,.,,:,, .. ,. . . , : Tensile tests of uniin-
iransverse tests of mitin- I rnnsvt-rsi-tests oHimshed . islu-d iiml finished ished green sand bars. j tfv«vn sand bars.* ;, ^rt-cn sand bars.
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The iron used for cast G is such as was intended to resist abrasion and sudden increase of temperature on its surface, and also to he a ^nnd chilling iron. The mixture contained cold and warm blast, charcoal piV iron, some coke pii^' iron, steel scrap, and old car wheels, melted in a cupola. Fluidity strips ran up full, and the chill was about. -S-iueh deep in the face of the chill test pieces.