The mechanical engineer's pocket-book. A reference-book of rules, tables, data, and formulæ, for the use of engineers, mechanics, and students (1910)
Kent, William, 1851-1918 · New York, J. Wiley & sons · leaf 414
tle, and those inthe valley are both brittle and weak. Passing from the.valley toward thesection at the right the alloys lose their brittleness and become soft, themaximum softness being at tin=100, but they remain weak, as is shownby the low elevation of the surface. This model was planned and… … Fig. 79. The best alloy obtained in Thurstons research for the U. S. TestingBoard has the composition, copper 55, tin 0.5, zinc 44.5. The tensilestrength in a cast bar was 68,900 lbs. per sq. in., two specimens givingthe same result; the elongation was 47 to 51.per cent in 5 inches.Thurstons…
Mechanical engineering
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