- 139 -
TABLE 6
Summary of Mechanical Properties of Eyebars Steel
From Point Pleasant Bridge
Laboratory/Specimen Source
Yield Strength 0.2% Offset ksi.
Tensile Strength ksi.
Elongation, % 1"
Reduction Area, %
Nat'l. Bureau of Standards
C0, C9 Outer Layer
86.1
121.3
21
52
Inner Layer
71.2
117.7
22
48
Estimate for Bar*
81.0
120.0
21
50
C3 Outer Layer
85.4
120.9
19
52
Inner Layer
69.2
114.2
21
51
Estimate for Bar*
80.0
119.0
20
51
U. S. Steel Laboratory
C9 Outer Layer
86.0
121.7
18
51.8
Inner Layer
69.8
116.2
20
50.6
C0 Outer Layer
85.6
120.2
18
54.3
Inner Layer
71.4
118.6
19
49.7
C3 Outer Layer
84.5
119.1
20
52
Inner Layer
68.0
117.7
21
51