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U.S. Department of Energy
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Performance of 9 to 12% Cr-1 Mo steels during flattening test

Technical Report ·
DOI:https://doi.org/10.2172/706510· OSTI ID:706510
The performance of modified 9 Cr-1 Mo, HT9, and types 316 and 321 stainless steel in the ASTM flattening test (A 530) is reported. The modified 9 Cr-1 Mo tubes tested were made by centrifugal casting and cold pilgering and by hot extrusion. The modified 9 Cr-1 Mo and HT9 were tested in the normalized and tempered condition and after aging for 3000 h at 482, 538, 593, 649, and 704{sup 0}C. Both alloys were also tested in the welded condition. Type 316 stainless steel was tested in the mill-annealed condition. Type 321 was tested as removed from the superheater section of the TVA Kingston power plant and after solution annealing.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
706510
Report Number(s):
ORNL/TM--7698
Country of Publication:
United States
Language:
English