Wilbert Smith Archives Files Box 1131 19 1131-19-p254

Document Text (OCR)

A spectrographic analysis of the metal givon be to check the suspected composition and determine the amo determined chemically. . Composition of Metallic Fragment Fe - P.c. Mg - 0.07% Ni_- 0.2: Mn - 15% Al - 0.06 Co = 0.02 Si - 0.7 Zr - 0.03 Sn = 0.05 @ (Cr - 0.7 Vv - 0,02 Mo - Tr, Cu - 0.1 Ti - 0.004 c= 1,18 Conclusions The analysis confirmed that the fragment had the suspected composition of a manganese steel. The low content of nickel and cobalt, and the high content of carbon and manganese,...