Tensile Properties (C3)
(Standard 0.252" Diameter Specimens)
Segment S2¹⁾
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 B³⁾
36
Normal⁴⁾
84.0
118.5
20.0
52.4
44
"
88.1
129.8
20.0
51.8
Center
21
Static
65.6
114.7
21.0
51.3
29
"
70.5
120.8
20.0
50.0
Layer B
32
"
82.3
117.9
20.0
52.0
40
"
83.5
119.2
20.0
51.8
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NOTES:
1) See Sketch A of Laboratory Specimen Plan
2) See Sketch D of Laboratory Specimen Plan
3) Layer B is adjacent to original unground surface.
4) Approximately 80 ksi/min.
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- B30 -
APPENDIX B
U. S. STEEL LABORATORY DATA
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*U. S. Steel Results*
*May 21, 1969*