Point Pleasant Bridge
U. S. Steel Results
February 14, 1969
Revised: Feb. 26, 1969
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EXAMPLE 2
Hardness Tests (∞)
Segment 801) Specimens 1-8
Specimen
Hardness Near One Surface
Hardness at Center
Hardness Near Other Surface
1
22.5, 22.5, 21
22, 21, 21.5
23, 23, 22.5
3
22, 22.5, 21.5
20.5, 20.5, 20
22.5, 22, 22.5
4
21, 22, 21.5
20, 20.5, 20.5
22, 22.5, 23
5
21.5, 21, 21
20.5, 20, 20.5
22, 22, 22
7
21, 21, 21
20, 20, 21
21.5, 22.5, 23
8
20, 21, 20.5
21, 21.5, 22
22.5, 23.5, 21.5
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Rockwell C Hardness Across Cross-Section
Specimen
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Run A
22.0
23.5
23.0
22.0
21.5
21.0
20.5
21.0
22.0
23.0
23.5
23.5
24.0
22.0
Run A
22.0
23.0
22.0
22.0
22.0
21.5
20.5
20.5
21.0
21.5
22.0
22.5
22.5
23.5
23.0
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Distance From Surface, in.
Specimen
Hardness
.025
.050
.075
.100
.125
.150
.175
.200
.225
.250
.275
.300
Run B
DPH
262
260
262
268
283
283
280
249
286
296
289
286
Rc 3)
25
24.5
25
25.5
28
28
27
23
28
29
28.5
28
Run C
DPH
254
274
260
277
271
293
293
277
286
286
Rc 3)
23.5
26.5
24.5
27
26
29
29
27
28
28
Run E
DPH
257
246
246
262
277
260
257
280
277
265
280
274
Rc 3)
24
22
22
25
27
24.5
24
27
27
25
27
26.5
Run C
DPH
251
260
274
280
283
262
265
268
283
268
Rc 3)
23
24.5
26.5
27
28
25
25
25.5
28
25.5
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Notes:
1) See Sketch C of Laboratory Specimen Plan.
2) See Sketch B of Laboratory Specimen Plan.
3) Converted from DPH using Wilson Conversion Chart.
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- B27 -
APPENDIX B
U. S. STEEL LABORATORY DATA