The 1350 F stress-rupture properties of two wrought alloys and three cast alloys Page: 10 of 24
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NACA TN No. 138.0
TABE II
IUPnREE-EST DATA AT 13500 F FOR FIVE ALLOYSStress Rupture Elongation Reduction
Alloy time in 1 inch of area
pai (hr) (percent) (percent)wrought NR-82
(6059 mndified-lov carbon)
Wrought R-84
(i-155 mrodifie -low carbon)
cast NR-71 (X-40)
cast IR-87
(Co-Cor-a base-91&)cast a-90
(Co-CIi base -5, 5w)35,000
30,000
28,000
25,000
33,000
30,000
27,000
25,000
45,000
40,000
35,000
32,500
45,000
40,000
37,000
35,000
34,000
45,000
40,000
37,500
35,000
34,000
32,50044.5
229
291.5
725
106.
196.5
338
718
100
232
816
1189
84
378
775
918
1980
53
84
542
639
960
1630ractured through gage mark.
RATIONAL ADVISORY
CC*2I EE FOR AERONAUTICS9
k
10
9
933
30
a29
31
18
27
41
20
17
22
18
al3
a23
8.5
12
15
8
710.5
10.9
12.5
12
26.5
39.0
24.2
28.2
40.7
37.7
35.0
45.8
27.o
27.4
31.8
33.1
35.0
20.7
7.0
13.3
16.5
10.2
6.4I _ I _ _ _ _ __ _ ~
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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/m1/10/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.