m
table xv. — (Continued.-
C Class.
Non-Tempered.
Tempered.
Classification.
Load Corresponding to
Load Corresponding to
Percentage of
Extension
Rupture.
Elastic Limit.
at Rupture.
Rupture.
Elastic Limit.
at Rupture.
Tons per
Tons per
Tons per
Square Inch.
Square Inch.
Square Inch.
Square Inch.
1
50-08
27-39
13
77-98
53-89
•5
2
48-31
26-75
15
75-00
51-99
6-6
3
46-40
25-99
17
71-00
49-45
8-6
4
44-25
25-23
19
66-44
45-96
10-8
5
44-78
24-28
21
62-76
43-62
13-3
6
38-99
23-14
23
56-93
39-43
16 0
7
3500
22-06
25
51-48
36-08
18-2
8
33-09
20-73
27
46-02
34-46
20-6
9
30-56
19-46
29
40-45
28-72
23-4
10
27-58
17-62
32
33-73
23-58
27-6
11
24-92
15-47
35
29-16
20-79
33-0
TABLE XVI.—TESTS OF WEST CUMBERLAND BESSEMER STEEL I*LATE, BY D. K1RKALDY, FOR THE BOARD OF TRADE.
LENGTIIWAY.
Stress.
Extension, Set in 10 Inches,
Stamped.
Elastic to
of Area
Elastic
Ultimate
Ultimate.
At 50,000 Jbs.
At 60,000 lbs.
Per sq. Inch.
Persq. Inch.
Per aq. Inch.
Per sq. Inch.
Per Cent.
Ter Cent.
Per Cent.
Per Cent.
Admiralty steel, A,
•25
20-7
29-8
69-3
54-4
2-60
8-02
23-2
100 per cent, silky.
“ B,
•25
20-5
30-2
67-6
57-6
3-30
7-51
25-7
Boiler steel, C, ....
•25
19-6
29-2
66-6
39-2
3-67
9-55
21*1
“ W, ....
•25-
22-1
32-7
67-6
47-6
0*27
5-32
23-6
Mean,.
20-7
30-5
67-8
49-7
2-46
7-60
23-4
Admiralty steel, A,
■49
16 0
27-7
57-5
50-7
5-52
13-9
27-3
100 per cent, silky.
“ B,
•49
16-0
27-8
57-5
48-7
5*51
13-8
29-7
“
Boiler steel, C, ....
•50
18-6
31-7
58-6
45-1
2-49
5-62
25-4
“
“ w,....
•49
19-3
32-1
60-2
40-5
2-29
501
22-6
Mean,..
17-5
29-8
58-4
46-2
3-95
3-35
26-2
Admiralty steel, A,
•75
15-0
27-6
54-1
49-6
6-09
15-0
30-2
100 per cent, silky.
“ B,
•75
15-2
28-0
54-0
52-6
5-78
14-2
31-8
“
Boiler steel, C, ....
•79
14-1
26-7
52-9
32-2
6-27
19-1
23-0
“
“ W, ....
•77
17-6
30-9
57-1
24-8
2-80
6-21
17-8
Mean,.
15-5
28-3
54-5
39-8
5-23
13-62
25-7
CROSS WAY.
Stress.
Extension, Set in 10 Inches,
Thick-
Contraction
Stamped.
Elastic to
of Area
Ultimate
Ultimate.
At 50,000 lbs.
At 60,000 lbs.
Ultimate.
Per sq. Inch.
Per sq. Inch.
Per sq. Inch.
Per sq. Inch.
Inch.
Tons.
Tons.
Per Cent.
Per Cent.
Per Cent.
Per Cent.
Per Cent.
Admiralty steel, A,“ B,
•25
21-2
30-7
69*1
37-4
0-73
6-45
22-7
100 per cent, silky.
cc
•25
21-5
30*9
69‘1
41-4
0-53
6-03
23-0
Boiler steel, C, ....
•25
21-2
30-4
69-9
45-0
0-68
6-40
23-9
(<
“ W,....
•25
22-0
32-2
67-9
20-4
0-41
4-44
19 1
“
21-5
31-0
69-0
36-0
0-59
5-83
22-2
Admiralty steel, A,
■48
17-2
28-3
60-6
40-0
4-97
11-80
26-8
100 per cent, silky.
a
“ B,
•48
17-1
28-2
60-4
43-5
5-26
12-70
29-4
Boiler steel, C, ....
•50
20-0
31-6
63-1
27-8
1-77
5-52
22-5 j
60 per cent, silky, 40per cent, granular.
“ w, ....
*49
20-2
32-7
61-7
23-7
1-53
4-74
17-2 j
80 ^ silky, 20 qpgranular laminae.
18-6
30-2
61-4
33-7
3-38
8-69
23-9
Admiralty steel, A,
•75
15-9
28-3
56-0
42-4
6-00
14-75
28'2
100 per cent, silky.
“ B,
•74
16-0
28-3
56-3
45*2
5-80
13-57
29-8
•80
14-5
28-1
51-6
53-0
5-94
13-85
32-4
“
“ W.
•77
16-8
30 7
54-9
34-2
3-14
7-29
25-31
90 per cent, silky, 10per cent, granular.
15-8
28-8
54-7
43-7
5-22
12-36
28-9