Tension
55,000 pounds per square inch
Compression
55,000 pounds per square inch
minus 180
Shear
46,000 pounds per square inch
General Order 64-A
Section IV
Strength Requirements For All Classes Of Lines
48.2 Structural Steel
Structural steel shall be in accordance with the specifications of the American Society for testing materials. The specifications provide for the following minimum ultimate strengths:
Tension |
55,000 pounds per square inch |
Compression |
55,000 pounds per square inch minus 180
|
Shear |
46,000 pounds per square inch |
Special high strength steel may be used provided it conforms to the above specifications in all respects except as to yield point and ultimate strength.