Unclassified 
Security Classification 
DOCUMENT CONTROL DATA-R&D 
(Security classification of title, body of abstract and indexing annotation must be entered when the overall report is classified) 
‘o ORIGINATING ACTIVITY (Corporate author) 2a. REPORT SECURITY CLASSIFICATION 
Naval Civil Engineering Laboratory Unclassified 
° ’ b. P H 
3. REPORT TITLE 
CORROSION OF ALLOYS IN HYDROSPACE - 189 DAYS AT 5,900 FEET 
4. DESCRIPTIVE NOTES (Type of report and inclusive dates) 
Final - June 1968 - June 1971 
5. AUTHOR(S) (First name, middle initial, last name) 
Fred M. Reinhart and James F. Jenkins 
6. REPORT OATE 7a. TOTAL NO. OF PAGES 7b. NO. OF REFS 
April 1972 iv 
8a. CONTRACT OR GRANT NO. 9a. ORIGINATOR’S REPORT NUMBER(S) 
Byerovecw No Vm) 38, 535..005.01.004 TN-1224 
c 9b. OTHER REPORT NO(S) (Any other numbers that may be assigned 
thie report) 
10. DISTRIBUTION STATEMENT 
Approved for public release; distribution unlimited 
11. SUPPLEMENTARY NOTES 12. SPONSORING MILITARY ACTIVITY 
Naval Facilities Engineering 
Command 
A total of 525 specimens of 60 different alloys were exposed at a 
depth of 5,900 feet in the Pacific Ocean for 189 days in order to 
determine the effects of the deep ocean environments on their corro- | 
sion resistance. 
Corrosion rates, types of corrosion, pit depths, and stress corro- 
sion cracking resistance are presented. 
The materials evaluated were aluminum alloys 5086-H34, H32 and H112 
and 6061-T6, and welded and unwelded 5083-H113 and 7039-164; welded 
} nickel alloys Ni-Cu 400 and K-500, Ni-Cr-Fe 600 and 718, Ni-Cr-Mo 625 
and Ni-Fe-Cr 825; and wire ropes Ni-Cr-Mo 625, Ni-Co-Cr-Mo, Ni-Mo-Cr 
"C" and Ni-Cr-Mo-103; three high strength-low alloy steels; six high 
strength steels; two austenitic cast irons; three stainless steels; 
two precipitation hardening stainless steels; and stainless steel 
and modified stainless steel wire ropes; and seven welded titanium 
alloys. 
DD J22"..1473 (Pace 1) Unclassified 
S/N 0101-807-6801 Security Classification 
