. Transactions. .000 ■ 010 _^ -^t^ . I ■075 ^b ^070!;:^-■0.^^ ■ ^ 035 Q40 Q55 065 075 0£5 n ese, per cent Fig. 2.—Results of cakbon variations in steel shown in fig. 1. groups. This would bring up to date the advances that have been madein the grading of structural steels during the past thirty years; it wouldtake account of our present methods and working conditions, it wouldalso give data for further improvement as suggested. I am very much obliged to Mr. Waterhouse for offering the data usedat the works with which he is connected, and I trust that
. Transactions. .000 ■ 010 _^ -^t^ . I ■075 ^b ^070!;:^-■0.^^ ■ ^ 035 Q40 Q55 065 075 0£5 n ese, per cent Fig. 2.—Results of cakbon variations in steel shown in fig. 1. groups. This would bring up to date the advances that have been madein the grading of structural steels during the past thirty years; it wouldtake account of our present methods and working conditions, it wouldalso give data for further improvement as suggested. I am very much obliged to Mr. Waterhouse for offering the data usedat the works with which he is connected, and I trust that other works 254 APPLICATION IN ROLLING OF EFFECTS OF CARBON will do the same in order that a full set of these tables can be presentedat our next annual meeting for consideration and discussion. The diagrams shown in Figs. 1 to 4 are based on the actual figuresfrom the large working tables of steel works A for basic open-hearthsteel and bessemer steel, and have nothing whatever to do with any isqpoOr. 035 05O 055 065 070 075Ca rb on, per cent Fig. 3.—Average results of tests on M-in. round bars rolled from testingots of acid bessemer steel. formula. For open-hearth basic steel, Figs. 1 and 2, the manganeselines are plotted for every per cent, from to per cent, andthe carbon lines for each per cent, from to per cent. Forbessemer steel, Figs. 3 and 4, the manganese lines are plotted for per cent, from to per cent, and the carbon limits for per cent, from to per cent. Both the carbon lines and the DISCUSSION 255 manganese lines are comparatively similar in the basic open-hearth the bessemer steel, the large break in the carbon lines from to
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
