Wilbert Smith Archives Files Box 1131 19 1131-19-p207

Document Text (OCR)

i. The corrosion on the part was slight and only superficial. 2. The specific gravity was very high. 3. The hardness was Rockwell B 9\, 4. Chemical Apprsia Carbon 0.. Haganese 11.3 Sulphur 0.017 NI =~ MO -- SI 0,12 Fé Ferrous 88.103. Conclusion The chemical analysis does not correspond to any commercial manganese steels as they contain either more carbon and silicon or some nickel and The allow work hardened very heavily during the process of cutting which is anherent to such an alloy. The...