 | Chicago Sanitary District. Board of Trustees - 1903 - 620 halaman
...(JCALITY OF MATERIAL. Wrought Iron. 8. All wrought iron used shall have au ultimate tensile strength of not less than 48,000 pounds per square Inch, an elastic limit of at least 26,000 pounds per square inch, and an elongation of at least 20 per cent in eight Inches,... | |
 | John Butler Johnson - 1904 - 598 halaman
...specimens broken in a testing machine shall show a tensile strength of not less than 60,000 pound.5 per square inch, and an elongation of 20 per cent. in eight diameters. 101. Finished bolts and nuts of Tobin or Phosphor bronze may be tested in the same manner... | |
 | Frank Woodward Skinner - 1904 - 316 halaman
...basic open-hearth steel with a tensile strength of 62,000 to 68,000 and an elastic limit of 33,000 pounds per square inch and an elongation of 20 per cent, in 8 inches. The maximum pressure on the top of the masonry of both abutments on each side of the river... | |
 | 1905 - 468 halaman
...such size and dimensions as the purposes for which the buildings is intended require. Wrought Iron — Wrought iron shall be uniform in character, fibrous,...have an ultimate tensile resistance of not less than forty-eight thousand pounds per square inch, an elastic limit of not less than 'twenty-four thousand... | |
 | 1905 - 274 halaman
...SECTION 21. Structural Material. yuamy and . WROUGHT IRON. All wrought iron shall be uni•trenstn. form in character, fibrous, tough and ductile. It shall...ultimate tensile resistance of not less than 48,000 Ibs. per square inch, an elastic limit of not less than 24,000 Ibs. per square inch, and an elongation... | |
 | Troy (N.Y.). - 1906 - 72 halaman
...such size and dimensions as the purposes for which the buildings is intended require. Wrought Iron — Wrought iron shall be uniform in character, fibrous,...have an ultimate tensile resistance of not less than forty-eight thousand pounds per square inch, an elastic limit of not less than twenty-four thousand... | |
 | San Francisco (Calif.) - 1906 - 130 halaman
...piles in so far as applicable. Wrought Iron. Section 36. All wrought iron shall be uniform and fibrous. It shall have an ultimate tensile resistance of not less than 48,000 pounds per square inch, and elastic limit of not less than 24,000 pounds per square inch, and an elongation of 20 per centum... | |
 | 1907 - 276 halaman
...direct shall be made. SECTION 21. Quality and •trength. Quality and strength. Structural Material. WROUGHT IRON. All wrought iron shall be uniform in...ultimate tensile resistance of not less than 48,000 Ibs. per square inch, an elastic limit of not less than 24,000 Ibs. per square inch, and an elongation... | |
 | American Street and Interurban Railway Association - 1907 - 826 halaman
...fibrous, tough and ductile. It shall have strength, an ultimate tensile resistance of not less than 48.000 pounds per square inch, an elastic limit of not less...24,000 pounds per square inch, and an elongation of twenty per cent, in eight inches, when tested in small specimens. Steel. AH structural steel shall... | |
 | New York (N.Y.) - 1907 - 462 halaman
...results of tests, such as he may direct shall be made. (Id., sec. 20.) § 21. Structural Material; Wrought Iron. — All wrought iron shall be uniform...fibrous, tough and ductile. It shall have an ultimate tensible resistance of not less than 48,000 pounds per square inch, an elastic limit of not less than... | |
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Wrought Iron. All wrought iron shall be uniform in character, fibrous, tough and ductile. It shall have an ultimate tensile resistance of not less than 48,000- pounds per square inch, an elastic limit of not less than 24,000 pounds per square inch, and... 
