Wilbert Smith Archives Files Box 1131 19 1131-19-p157
Document Text (OCR)
— ganese. Its commercial designation is Hadfield Man- ganese Steel. This type of material is used where a non-magnetic and wear-resistant steel would be re- quired — for example, in screens, wear plates, rails, dipper teeth, and journal box liners. In many cases this type of steel is formed by casting to the required shape. The samples provided for examination pro- bably represent scrap pieces from a large casting. No extra-terrestrial aspects are involved in their origin. Another ufologist we...