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  • Users: scottmnj
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  1. scottmnj

    Welding A449 studs

    I have a project where the design calls for A449 threaded studs to be welded to A36 steel tubing. Viable?
  2. scottmnj

    Welding A449 Studs

    I have a project where the designer specified that A449 studs be welded to a steel member to serve as connection hardware. The studs are 3/4" dia and welded with a 1/4" fillet all around. Studs are failing when hit with a light to moderate blow from a lump hammer. The studs are breaking clean...
  3. scottmnj

    Driving open ended plastic piles through granular soil.

    I have a contract to drive 80' x 12"d open fiberglass pipe piles to a theorhetical elevation of -66ft. Avg. Mudline is at -40ft. First 20ft of driving is through a M.Dense Silty Sand N = 20. Last 6 ft is through a V. Dense Silty Sand N=40. My contract prohibits jetting. We are using an air...

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