BULK MODULI OF BUOYANCY MATERIALS 

 AT 10,000 PSIG HYDROSTATIC PRESSURE, 



BUOYANCY MATERIALS 



125 



/ 



_l 



uj S 



(- 



CO 



LOW ALLOY 

 QUENCHED a< 

 TEMPERED 



HARDENABLE J 

 STAINLESS "^ 



ESTimTED STRENGTH RANGES FOR SUSCEPTIBILITY TO 

 CRACKING IN SEA WATER, FRESH WATER, OR HUMID ATMOSPHERES. 

 150 175 200 225 250 275 300 Ksi YIELD (STEELS) 



R ES I S TA N T V\V;&^;i:?jigMSUS C E P T I B L E 



RESISTANT:;--:;-. 



RE S istAn f^^; -^^^p^^^^syscE^BLT 



RESISTANT^^^■•V^^^••^:i:^•^ 



MARAGING 



/: 



R E S I S TA N T ••■•:. :^^r':V5^^ SUSCEPTIBLE 



ALUMINUM 

 ALLOYS 



TITANINUM 

 ALLOYS 



RESISTA 



RESISTANT.-. lIM II III I Mil | 



40 50 60 





IMMUNE 



75 



100 



125 



STRESS CORROSION CRACKING 



HYDROGEN EMBRITTLEMENT 



STRESS CORROSION CRACKING 



HYDROGEN EMBRITTLEMENT 



STRESS CORROSION CRACKING 



HYDROGEN EMBRITTLEMENT 



80 Ksi YIELD (ALUMINUM) 

 SUSCEPTIBLE^ STRESS CORROSION CRACKING 



HYDROGEN EMBRITTLEMENT 



175 Kti YIELD (Tl) 



ISO 



IMMUNE 



RESISTANT (?) 



STRESS CORROSION CRACKING 

 HYDROGEN EMBRITTLEMENT 



159 



