72
APPENDIX O.
I Jo ?r'>upr* tJ iI-'" •miiBiiTT .ire |f~
'SI jo.
'.of; TTf
...1
TESTS OF STEEL EYE BARS
if,
'O [ • : { ■ : : i 1... (t<
‘ ‘c
TESTS ON FULL-SIZE
EYE BARS.
TESTS OTT SAMPLE RAPS PRAM
■ ■ • • • ■ ’•, in:.' . to . •• ' •( .
Dimensions, Inches.
Results op Mechanical Tests.
: ' J: -y. . . : remarks. . . • <r
Span.
t-p.
-Li
Original.
Areas.
Elastic
Limit,
Max.
Load,
Phos-
phorus,
Kind of Steel.
Made by
Forged by
Nominal.
Actual.
TION OF
Limit,
Load,
Place of
Melt
Original,
Laches.
After
TION,
TION,
ii;:?,.:: I) p'-Tr/:fj"rti- ? ■ =/*
' » ■
Width.
Thick-
ness.
Length
C. to C.
Gauged
Length.
Width.
Thick-
ness.
Width.
Thick-
ness.
Area,Per cent.
Inches.
Per cent.
Lbs. persq. in.
Lbs. persq. in.
Fracture.
i.
Number.
K i
Testing,
Inches.
Per cent.
Per cent.
Lbs. persq. in.
Lbs. persq. in.
Per cent.£•-1
i ,
f
■ ■. 1 > * --U'iW J;- L, Pi'..
, ■■ > L J :
Flaw in back of eye.
High steel.
« A
g j
10
10
u
h
n
160.63
158.07
1,20
120
10.07
10.16
1.50
1.46
8.00
1.14
39.6
20.2
10.75
16.8
8.96
35 100
36 030
37 680
67 490
65 190
70 160
Body
Head
Body
6 552
6 552
10 747
.9500
.4992
47.5
27.5
41 580
73 050
.027
Basic open-hearth
Carnegie, Phipps & Co.
Union Bridge Co.
& *w a
10
358.93
324
9.95
1.73
7.86
1.32
39.7
26.6
8.2
.9918
.4593
52.6
24.4
42 650
75 620
.015
ft ft tt
tf ft 4t
10
n
361.23
312
9.98
1.75
7.77
1.25
44.4
36.8
11.8
39 700
65 500
“
10 647
.9520
.4957
47.9
28.8
40 280
70 280
.062
« (< ((
••
t< ti tt
' -If = ■ ‘ • "
10
6
li
H
162.38
291.26
120
252
10.05
6.08
1.50
1.13
8.06
4.62
1.15
0.64
38.5
56.9
38.5
33.7
17.3
13.4
33 140
29 690
65 060
56 700
Body
6 552
10 830
■ .9500
.9756
.4992
.5330
47.5
45.4
27.5
28.1
41 580
40 490
73 050
69 700
.027
.026
Basic open-hearth
ft tt tf
Carnegie, Phipps & Co.
Union Bridge Co.
• ■■
6
u
314.18
288
6.09
1.12
4.83
0.82
41.9
39.6
13.8
30 800
59 210
ft
10 830
10
m
287.37
240
10.07
1.67
8.07
1.25
40.0
32.5
13.5
32 860
65 600
ft
09 099
1.1590
.6474
44.5
20.0
43 750
75 000
.021
ft tt it
ft ft tt
*t tt tt
ft
O
10
it*
284.28
240
9.92
1.95
7.97
1.47
39.4
36.8
15.3
31 110
61 060
(f
5 798
1.0140
.5814
42.7
28.8
42 210
69 730
.046
ft ff ff
« t ft tt
ft tf ti
s
10
i
287.88
240
9.94
0.99
8.05
0.80
34.6
32.9
13.7
33 990
63 220
<1
10 886
.9868
.4719
52.2
28.1
40 230
69 720
.025
ff tf (1
ni‘ “ “
ff ff tt
Bar cut in two, reheaded, not reannealed. First halt: stretched to full capac- )ity of machine, then planed to a section equivalent to 16 sq. in. original. JSecond half treated same as above.
W
o
ft
<
10
10
2 K )
a}
222.88
222.48
96
96
10.05
10.05
2.20
2.18
6.09
5.75
1.77
1.63
32.6
41.4
13.0
14.6
13.5
15.2
29 330
28 660
63 100
63 860
<<
f (
015 014
015 014
.9635
.4983
48.3
28.8
38 090
71 300
.017
tf ft ft
;
“ “ tf
Piping in fracture.
Retest of above. Reheaded, not reannealed. Broke in new head. Elonga- )
10
10
ii )ii i
464.03
198.03
420
144
10.12
1.86
9.99
1.80
4.5
10.4
4.7
2.5
3.2
31 970
53 860
58 950
( f
Head
015 090
015 090
1.0201
.6084
40.4
27.0
40 200
71 860
.017
tf ft tt
« .. „
** <t
tion is total for both tests. )
Soft steel suspender.
7
i*
314.04
276
7.12
1.17
5.14
0.77
52.5
59.3
21.5
30 270
51 500
Body
11 045
1.0180
.4941
51.5
28.8
33 400
57 170
.014
If ff t I
n tt ( «
Keystone “ “
Foreign substance in fracture.
Retest of above. Reheaded, not reannealed, planed to equivalent of 16 sq. in. )original area. f
10
10
j
338.73
300
96
10.07
2.20
9.73
5.88
2.11
1.70
7.3
37.5
20.8
18.4
6.9
19.2
28 080
55 160
62 590
Body
ff
11 063
11 063
1.1220
.6371
43.2
24.2
38 320
70 220
.023
Basic open-hearth
Carnegie, Phipps & Co.
Union Bridge Co.
First half of bar cut in two; reheaded, not reannealed.
Second half of above.
ft
ft
10
10
IIS \l T* /
251.58
250.08
204
204
10.03
10.05
1.81
1.81
8.08
1.39
38.1
28.9
5.7
14.1
2 8
29 67029 270
6214049 34053 930
65 40064 510
n
Head
015 094015 094015 094
015 093015 093
1.0200
.4121
59.6
26.3
40 200
71 080
.028
ff tf tt
*t tt ti
Above reheaded, not reannealed.
First half.
Second half of above. One head buckled; rebored, and then test finished.
b*
10
m j
n ?If s
194.88
144
5 2
3.6
11.8
11.3
ft
o
10
10
250.28
247.78
204
204
9.97
9.99
1.37
1.37
8.39
8.15
1.11
1.07
31.8
36.3
24.0
23.0
32 70031 290
Body
((
1.0670
.6374
40.3
25.0
39 360
69 360
.041
.. .. „
ft tt f ,
Soft steel suspender.
7
1 T B ff
385.73
848
7.02
1.31
5.16
0.92
48.4
78.3
22.5
28 980
52 010
< (
8 368
1.1700
.5133
34.2
31.3
34 190
58 460
.039
ft «i tt
Keystone'* “
7
385.78
348
7.01
1.26
5.13
0.83
51.8
47.3
13.6
28 410
54 740
Body
6 961
1.0170
.5220
48.7
28.1
41 400
67 840
.010
Basic open-hearth
Carnegie, Phipps & Co.
Union Bridge Co.
First half.
Second half. Spot of foreign matter in fracture.
10
10
H li* )
249.98
250.23
204
204
9.99
10.02
1.62
1.63
7.49
9.49
1.11
1.53
48.6
11.1
39.4
19.6
19.3
9.6
30 50029 980
58 87056 950
< (
40 41140 411
.9338
.5572
40.3
25.0
40 910
70360
.014
<1 C4 tt
** tt tt
*• ft
Bar strained to 59.30 lbs. per sq. in,, then planed to equivalent of 16 sq. in. )original section. Area 1 foot from fracture, reduced 12 per cent. J
ft
5
ft
ft
t—1
10
341.28
96
9.96
2.05
7.52
1.91
10.3
11.8
12.3
33 360
73 550
<<
5 868
.9700
.4792
51.5
25.5
40 410
69 900
.063
ft tf tf
ft tt tt
ft If
Bar cut in two, first half.
Second part of above.
10
10
i*L
i*r
249.48
249.58
204
204
10.13
10.13
1.30
1.30
7.92
7.77
0.92
0.94
44.6
44.6
32.0
35.3
15.7
17.3
82 52031 900
60 71059 470
<-
40 43540 435
.9504
.5363
43.6
27.0
40 400
70 490
.023
•f ti tt
<f ft tf
*t a ft
<
o
10
1 tt
284.82
240
9.98
1.81
7.62
1.28
46.0
35.8
14.9
28 000
58 720
< f
013 091
1.0000
.5557
44.4
29.5
40 000
66 800
.008
tt tt <t
.. ..
tf ff tt
First part.
Second part.
Retest of above, reheaded, not reannealed.
10
10
Hi)Hi [lit)
221.98
221.98
180
180
10.15
10.13
1.83
1.81
8.06
1.34
41.8
23.5
11 1
13.1
6.2
13.1
32 20031 910
62 27058 05065 170
ft
Head
Body
<«
40 40940 40940 409
.9746
.5574
42.8
21.3
40 530
72 240
'.056
ft tt it
; if tt tt
ft ff f
10
172.43
120
10.13
1.81
8.43
1.38
36.6
15.7
10
1
361.68
312
10.04
0.99
8.22
0.71
41.2
47.1
15.1
29 970
58 680
40 414
1.1720
.6371
45.7
27.0
40 610
70 480
.060
ft tt tt
*t tt tt
“ «« tt