Mechanical Property and Microstructural Evaluation of Maraging Steels
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
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This report contains the results of a material characterization study which was conducted on various grades of 18 percent nickel maraging steel which have been considered for use as the sheath material for the kinetic energy M-735 penetrator. Investigated grades include the 200, 250, 300, and 350. Data presented and discussed are hardness, tensile properties, hoop strength, Charpy impact, and fracture toughness KQ, WA, and KId. Additional areas addressed include material processing, chemistry, cleanliness, and heat treatment. Results of the study indicate that the materials generally meet the requirements put forth in MIL-S-46850A, the military specification under which they were procured. The 350 grade is not included in this specification.
- Properties of Metals and Alloys
- Ammunition and Explosives