Development and Ballistic Testing of a New Class of Auto-Tempered High Hard Steels Under Military Specification MIL-DTL-46100E
Abstract
The US Army Research Laboratory (ARL) was directed to investigate various ways to expand current steel armor plate production as the large military demand for armor plate exceeded the current production capacity at US steel facilities for quench and tempered high hard armor (HHA) steel plate. The solution was to expand the availability of HHA steels under the current HHA military specification (MIL-DTL-46100) to include a new class of air-quenched, autotempered steels that do not use existing water quench and temper facilities. Allegheny Technologies Incorporated (ATI) developed an auto-tempered steel alloy ATI 500-MIL (trademarked) that has physical and mechanical properties that meet the current HHA specification. ARL procured sufficient amounts of ATI 500-MIL (trademarked) plate to allow acceptance testing and subsequent certification of ATI 500-MIL (trademarked) plate as complying with the First Article requirements of the newly revised MIL-DTL-46100E specification. This paper documents the development of ATI 500-MIL (trademarked) plate and subsequent ballistic testing and inclusion into the specification as Class 2 auto-tempered HHA steel.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2009
- Accession Number
- ADA538409
Entities
People
- Andrew Nichols
- Dwight Showalter
- Glenn Swiatek
- Jonathan Montgomery
- Larry Martin
- Matthew Burkins
- Richard Squillacioti
- Ronald Bailey
- William Gooch
Organizations
- United States Army Research Laboratory