SYMPOSIA PAPER Published: 01 January 1945
STP42573S

Effect on Season Cracking of Alloy Additions to Cartridge Brass

Source

Thirty-six elements have been alloyed singly with cartridge brass. Ammonia and mercury stress-cracking tests have been conducted on the as-rolled and recrystallized strip. Ultra high purity cartridge brass has also been tested. Silicon improves stress-cracking behavior. High silicon (1 per cent) cartridge brass quenched from high temperature (for example, 800 C.) annealing is exceptionally resistant to ammonia stress cracking. This improvement is not lost by subsequent cold working, but is greatly reduced by subsequent low temperature annealing. Phosphorus, arsenic, barium, cerium, magnesium, tellurium, tin, beryllium, and manganese benefit stress-corrosion resistance under some circumstances, but not others. The other alloying additions tried had no large effect on stress-cracking resistance. None of the elements added accelerated stress cracking. The impurities in commercial brass are not responsible for season cracking.

Author Information

Wilson, T., C.
The New Jersey Zinc Co. (of Pa.), Palmerton, Pa.
Edmunds, Gerald
The New Jersey Zinc Co. (of Pa.), Palmerton, Pa.
Anderson, E., A.
The New Jersey Zinc Co. (of Pa.), Palmerton, Pa.
Peirce, W., M.
The New Jersey Zinc Co. (of Pa.), Palmerton, Pa.
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Details
Developed by Committee: B05
Pages: 173–198
DOI: 10.1520/STP42573S
ISBN-EB: 978-0-8031-5903-7
ISBN-13: 978-0-8031-6057-6