Accession Number:

ADA954359

Title:

Resistance of Light Gauge (.039 Inch to .051 Inch) Mn-Mo Steel as Variously Heat Treated, to Perforation by Small Arms Projectiles

Descriptive Note:

Partial rept. no. 10

Corporate Author:

WATERTOWN ARSENAL LABS MA

Personal Author(s):

Report Date:

1944-06-03

Pagination or Media Count:

5.0

Abstract:

As a part of the program of development of improved body armor components, light-gauge 0.39-in to .051-in samples of Mn-Mo steel, as- quenched and after tempering at 300 F , 400 F and 500 F, have recently been tested ballistically. Of the nominal .040-in gauge samples, the as-quenched specimen offered greatest resistance to perforation by caliber .45 steel- jacketed ball projectiles, whereas the specimen tempered at 300 F offered greatest resistance to perforation by the caliber .22 fragment-simulator, G-2. The resistance of all samples behaved substantially alike and although their resistance to perforation by the caliber .45 ball projectile was slightly inferior to that of Hadfield manganese steel, their resistance to projectile G-2 substantially duplicates that of the Hadfield steel.

Subject Categories:

  • Metallurgy and Metallography
  • Armor

Distribution Statement:

APPROVED FOR PUBLIC RELEASE