Resistance of Hadfield Manganese Steel in Form of Helmet, M1, to Perforation by Fragment-Simulator, G-2
WATERTOWN ARSENAL LABS MA
Pagination or Media Count:
The resistance of Hadfield manganese steel of varying thickness in the form of Helmet, M1, is investigatged. In comparison with the same material in flat sheet form, as impacted at normal incidence, Hadfield manganese steel in the subject form exhibited a tremendous decrease in resistance to perforation by the fragment-simulator, G-22. This, however, does not necessarily indicate a comparable decrease in the materials resistance to perforation by actual fragments. Helmets of Schlueter Manufacturing Company make were selected at random and subjected to impact with G-2 projectiles. Earlier tests of Hadfield manganese steel in the form of flat sheet have indicated that when impacted at normal incidence by this projectile its resistance to perforation is much greater about 1675 feet-per-second for .045 gauge.
- Metallurgy and Metallography
- Protective Equipment