Point Pleasant Bridge
U. S. Steel Results
February 14, 1969
Revised: Feb. 26, 1969
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EXAMPLES
[figure]
[figure]
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Hardness Tests (C9)
Segment 801) Specimens 1-8
Specimen
Hardness Near One Surface $R_C$
Hardness at Center $R_C$
Hardness Near Other Surface $R_C$
1
24,24,23
18.5,19.5,16.5
23,23,23
2
23,23,23
18,18.5,18.5
23,23,23
3
24,24,23.5
18,19.5,18.5
22,23,23
4
23,22,22.5
19,19,19.5
22.5,22.5,22.5
5
22.5,23,22.5
20.5,20.5,21.5
23.5,23.5,23.5
6
22.5,23,23
22.5,23,24
22.5,23,23
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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
2 mm A
24.5
23.5
22.0
20.5
20.0
19.0
17.5
18.5
20.0
21.0
22.0
23.0
24.5
2 mm A
24.0
23.5
22.0
21.5
21.0
20.0
20.0
20.5
21.5
22.0
22.5
23.5
22.5
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Distance From Surface, in.
Specimen
Hardness
.025
.050
.075
.100
.125
.150
.175
.200
.225
.250
.275
.300
2 mm B
DPE $R_C$
265
262
283
274
268
280
280
280
280
25
25
28
25.5
27
27
27
27
2 mm C
DPE $R_C$
271
289
289
293
286
289
283
283
283
26
28.5
28.5
29
28
28.5
28
28
2 mm B
DPE $R_C$
260
265
277
277
274
277
286
303
293
289
280
286
24.5
25
27
27
26.5
27
28
30
29
28.5
27
28
2 mm C
DPE $R_C$
295
271
283
283
277
293
280
280
289
29
26
28
28
27
29
27
27
28.5
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Notes:
1) See Sketch C of Laboratory Specimen Plan.
2) See Sketch B of Laboratory Specimen Plan.
3) Converted from DPE using Wilson Conversion Chart.
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- B24 -
APPENDIX B
U. S. STEEL LABORATORY DATA