Resistance of Silico-Manganese Spring Steel to Perforation by Fragment- Simluating Projectiles
Abstract
In response to a directive from the Office, Chief of Ordnance, the resistance of several types of light-gauge steel to perforation by fragment- simulating projectiles is being investigated. The sample tempered to 49 Rockwell C exhibited resistance to perforation by the cal. .22 fragment-simulating projectile, G-22, superior to that of an equivalent weight of Hadfield manganese steel but under impact of the cal. .45 (steel-jacketed) ball projectile the resistance of a similar sample was greatly inferior to that of the Hadfield type. Under impact of the cal. .22 fragment-simulating projectile, G-2, the resistance of sample 8-5, tempered to 49 Rockwell C (1760 feet-per-second), was superior to that of an equivalent weight of Hadfield manganese steel (1630 feet- per-second). Under impact o the cal. .45 ball projectile its resistance (679 feet-per-second) is greatly inferior to that of Hadfield steel of equal weight (920 feet-per-second).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1944
- Accession Number
- ADA953963
Entities
People
- J. F. Sullivan