Ballistic Characteristics of Four Types of Light Gauge (.044 Inch to .051 Inch) Steels Submitted by Republic Steel Corporation
Partial rept. no. 2
WATERTOWN ARSENAL LABS MA
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In accordance with a request from the Office, Chief of Ordnance, a program is being conducted at this arsenal to develop improved components of body armor assemblies. In conjunction with this program tests have recently been conducted on four types of steels submitted by Republic Steel Corporation. Stainless steel in the 14 hard 27 Rockwell C condition exhibited much better overall resistance characteristics than stainless steel in the 12 hard 33 Rockwell C or full hard 45 Rockwell C condition, but was slightly inferior to Hadfield manganese steel of equivalent weight. SAE 4330 steel, heat treated to a hardness of 34 to 36 Rockwell C exhibited inadequate resistance characteristics as compared with other heat-treatable steels previously tested here.