. Railway master mechanic . -^ >««ktf uat^ ^ ^ ^Hlg average strength of thin specimens is much greater thanthe thick ones. Thus the average strength of pieces ij , up to X in. inclusive, is 3;i,300 lbs , and of the thick1 pieces, »4m. up to in., inclusive only 28,980 specimens being 15 per cent, stronger than the thickones. But the most important fact brought out by these TENSILE TESTS OF MALLEABLE CASTINGS. C. B. & Q. R. R., Aurora, III., May 20,1891. jl s h TENSILE IlMlT. ..„., SquareInch. .„.,. I>4» % .20 34,700 2 8,000 21,100 I
. Railway master mechanic . -^ >««ktf uat^ ^ ^ ^Hlg average strength of thin specimens is much greater thanthe thick ones. Thus the average strength of pieces ij , up to X in. inclusive, is 3;i,300 lbs , and of the thick1 pieces, »4m. up to in., inclusive only 28,980 specimens being 15 per cent, stronger than the thickones. But the most important fact brought out by these TENSILE TESTS OF MALLEABLE CASTINGS. C. B. & Q. R. R., Aurora, III., May 20,1891. jl s h TENSILE IlMlT. ..„., SquareInch. .„.,. I>4» % .20 34,700 2 8,000 21,100 I«x H .38 .593 20,000 33,700 2 9,000 15,200 ljlx H .5 . 32,800 2 13,000 17,000 Vix H .64 .979 31,400 2 19,000 19,400 2 !..^ |39,I0O 25,100 i;^ 1,5,400 Vix % .^ 33,600 Hi 26,000 19,200 1 ll | 33,000 30,600 1. 19,000 17,600 lVxlV| «,600 27,400 1 1 j il ;< i 1 ..52x 1 ..5t,2, 311, Ij iiw ductility of m
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Keywords: ., bookcentury1800, bookdecade1870, bookidr, booksubjectrailroadcars
