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  5. Grinnell - Model A252 - Piling Pipe

Grinnell - Model A252 -Piling Pipe

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Specification A252 covers nominal (average) wall steel pipe piles of cylindrical shape and applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form case-ln-place concrete piles. Surface imperfections exceeding 25% of the nominal wall in depth are considered defects. Defects not exceeding 33.5% of the nominal wall in depth may be repaired by welding. Before welding, the defect shall be completely removed.

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Testing Requireme

  • Hydrostatic Testing None specified
  • Mechanical Tests
  • Tensile Test - either longitudinal or transverse at option of manufacturer
  • Number of Tests
  • One tensile propertg test per 200 lengths

Permissible Variations

  • Wall Thickness                                       1
  • Not more than 12.5% under the nominal wall thickness specified
  • Weights per Foot
  • The weight of any Individual length of pipe shall not vary more than 15% over or 5% under the weight specified. Each individual length shall be weighed separately.
  • Outside Diameter
  • Shall not vary more than plus or minus 1% from the diameter specified

Lengths

  • May be ordered in single or double random lengths or in uniform lengths. Single Random -16` - 25` inclusive Double Random - Over 25` with a minimum average of 35` Uniform - Plus or minus 1" on length specified

Marking Requirements On Each Length

  • Rolled, Die Stamped or Paint Stenciled (manufacturer`s option) Manufacturer`s name, brand or trademark, heat number, method of, length, wall thickness and ASTM A252 and the Grade.