- B21 -
APPENDIX B
U. S. STEEL LABORATORY DATA
Point Pleasant Bridge
U. S. Steel Results
February 14, 1969
Tensile Properties (G9)
(Standard 0.252" Diameter Specimens)
Segment 82-1)
Specimen No. 2)
Strain Rate to Yield
Yield Strength at 0.2% Offset, ksi
Tensile Strength, ksi
Elongation in 1 Inch, %
Reduction of Area, %
Layer A³)
6
Normal⁵)
85.2
120.7
19.0
51.8
14
85.2
125.8
18.0
51.8
Layer B⁴)
36
44
Layer A
2
Static
78.7
118.7
19.0
51.3
10
81.2
118.7
19.0
50.2
Center
17
61.5
111.3
20.0
50.5
21
68.1
112.7
20.0
50.8
25
67.6
116.3
20.0
50.5
29
78.7
124.8
19.0
50.8
Layer B
32
83.5
120.8
17.0
49.0
40
83.0
121.3
19.0
53.9
Segment 83-1)
Specimen No. 2)
Strain Rate to Yield
Yield Strength at 0.2% Offset, ksi
Tensile Strength, ksi
Elongation in 1 Inch, %
Reduction of Area, %
Layer A
6
Normal
86.2
120.7
18.0
52.4
14
80.1
121.2
16.0
43.2
Layer B
36
44
Layer A
2
Static
80.7
119.7
19.0
53.0
10
78.5
119.3
19.0
52.4
Center
17
66.6
113.7
20.0
49.6
21
67.2
115.2
19.0
48.5
25
70.1
118.3
19.0
50.0
29
79.0
122.8
16.0
40.0
Layer B
32
85.0
121.8
18.0
51.2
40
84.8
122.2
18.0
51.4
NOTES:
1) See Sketch C of Laboratory Specimen Plan.
2) See Sketch D of Laboratory Specimen Plan.
3) Layer A is adjacent to ground surface.
4) Layer B is on opposite side where 0.05 inch was removed to dress up surface.
5) Approximately 80 ksi/min.