Comparison of the slow strain rate technique and the NACE TM0177/sup (1)/ tensile test for determining sulfide stress cracking resistance
Samples of a commercial sour service API C-90 (modified AISI 4130 steel) oil country seamless casing in the asquenched state were tempered at six temperatures in the range of 610 to 780 C. The sulfide stress cracking (SSC) resistance of the tempered steels was investigated by the NACE Standard TMO177 tensile bar test and the slow strain rate technique (SSRT). By the NACE TMO177 test, a maximum SSC threshold stress of 662 MPa (96 ksi) was obtained for a steel with a yield strength of 690 MPa (100 ksi), which has been tempered at 715 C. Data on time to failure, percent reduction of area, and percent elongation by the SSRT correlated well with the threshold stresses of the six tempered steels. Compared with the NACE TMO177 test, the SSRT saved considerable time in determining SSC resistance.
- Research Organization:
- Corrosion Science Section, Physical Metallurgy Research Labs., Energy, Mines and Resources, CANMET, 568 Booth St., Ottawa, Ont., K1A 0G1
- OSTI ID:
- 5699417
- Journal Information:
- Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 26:10; ISSN MTPFB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
CHALCOGENIDES
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DESTRUCTIVE TESTING
FRACTURE PROPERTIES
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
OIL WELLS
STAINLESS STEELS
STANDARDS
STEELS
STRAIN RATE
STRESS ANALYSIS
SULFIDES
SULFUR COMPOUNDS
TENSILE PROPERTIES
TESTING
WELL CASINGS
WELLS
YIELD STRENGTH