The 1350 F stress-rupture properties of two wrought alloys and three cast alloys Page: 11 of 24
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10
NACA TN No. 1380
TABLE III
RUPRE PROP UIES CF CAST AMD WROUlET AILDYS AT 13500 F AND
COMPARATIVE PROPERTIS OF OTER ALLOYSStresstimte elongation to
Stress for r t.ure in inAiated rupture in indicated
lTreatmentti eods tim periods
All Tratm(psi) (percent)
100 hr 500 hr 1000 hr 100 hr 500 hr 1000 br
Wrought -82 2000 F 1 hr W.Q.
(6059 mo ifsed-low carb ) + 50 hr at 13500 7 32,500 26, 000 24,0ooo 10 9 9
Wrought R-84 2200 7 1 hr W.Q.
(N-155 mdified-low carbon) + 50 hr at 13500 32,500 26,000 24,000 25 30 30
cast XR-71 (X-40) 50 hr at 13500 7 45,000 36,500 33,000 31 25 40
Cast NR-87
(Co-Or-Ni base-9Mo) 50 hr at 13500 7 44,500 38,000 36,000 20 20 18
Cast R-90
(Co-Cr-Ni base-~o, 5W) 50 hr at 13500 7, i000 36,oo000 34,000 10 10 8
Wrought -15a Hot worked 28,000 22,000 20,000 10 6 6
Wrought lo-carbaon -9 Hamr forged frt
2100o F to 13500 F 36, 000 29,000 b27,500 17 12
Wrought low-carbon -155' 2200 f 1 hr W. Q.
+ 50 hr at 13500 30,000 25, 500 22,800 26 39 25
Cast 6059a 50 hr at 15oo00 36,500 32,500 b30,5 00 18 23
Cast 422-19a 50 hr at 1500 47, 000 39,500 36,000 28 Is 10
600r- -15d -- 68,000 '56, 500 52, 000 4 5 5
anIta taken frct reference 3.
b obtained by extrapolation of stress-rupture cure.
ODa ta taken from unreported investigation onn typical lo-carbon N-155 bar stock in progress at the University of
Miohigan for the NACA.
Data taken from reference 5.
NATIONAL AISNISB
CcT4 EE FOR AERONAUTICSL.
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Reynolds, E. E.; Freeman, J. W. & White, A. E. The 1350 F stress-rupture properties of two wrought alloys and three cast alloys, report, November 1947; (https://digital.library.unt.edu/ark:/67531/metadc55436/m1/11/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.