STRESS-RUPTURE PROPERTIES OF TYPE 304 STAINLESS STEEL TUBING

Technical Report · Sat Jun 01 04:00:00 EDT 1963

DOI:https://doi.org/10.2172/4695253· OSTI ID:4695253

Venard, J T

A single heat of type 304 stainless steel tubing was burst tested in air to determine its stress-rupture properties at temperatures ranging from 1100 to 2200 c- F and times up to 4000 hr. The data are presented in graphic form showing log stress vs log time-to-rupture and log strain vs log time- to-rupture. The effect of specimen size on stressrupture behavior was examined as was the effect of testing in an atmosphere of 90 vol% He, 8 vol% N/sub 2/, 2 vol% O/sub 2/. Correlation of the data up to 2000 c- F using the Dorn Parameter is shown to be valid. The data at 2200 c- F do not agree with the correlation. It is also shown that there is no size effect of 6.0- in. vs 2.5-in.-long specimens at temperatures of 1600 c- F and below. No difference was seen between stress-rupture tests run in air and those in 90 vol% He, 8 vol% N/sub 2/, 2 vol-% O/sub 2/. Strain-at-rupture results indicate decreasing strains with increasing time. The strains observed at 1200 to 1600 c- F were similar and somewhat smaller strains were observed at 1100 and 1800 c- F. (auth)

• Research Organization: Oak Ridge National LAb., Tenn.
• DOE Contract Number: W-7405-ENG-26
• NSA Number: NSA-17-025780
• OSTI ID: 4695253
• Report Number(s): ORNL-TM-535
• Country of Publication: United States
• Language: English

Related Subjects

AIR
DEFORMATION
DIAGRAMS
FAILURES
HELIUM
HIGH TEMPERATURE
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
NITROGEN
OXYGEN
QUANTITATIVE ANALYSIS
STAINLESS STEELS
STRESSES
TEMPERATURE
TUBES