DOD-F-24669/4, MILITARY SPECIFICATION: FORGINGS AND FORGING STOCK, STEEL BARS AND BILLETS, NICKEL AND NICKEL-MOLYBDENUM MODIFIED HADFIELD; LOW MAGNETIC PERMEABILITY (METRIC) (07 JUL 1986) [NO S/S DOCUMENT]
DOD-F-24669/4, MILITARY SPECIFICATION: FORGINGS AND FORGING STOCK, STEEL BARS AND BILLETS, NICKEL AND NICKEL-MOLYBDENUM MODIFIED HADFIELD; LOW MAGNETIC PERMEABILITY (METRIC) (07 JUL 1986) [NO S/S DOCUMENT]., This specification covers bars, billets and forgings made of two modified Hadfield steels having low magnetic permeability.