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  • Users: brgriffi
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  1. brgriffi

    316L SS, Al fittings and saltwater

    Hello, We're having an issue with galvanic corrosion for some of our products installed in locations exposed to salt water. We have large grates made from 316L SS. Attached to these grates is an aluminum (part 2024, part 6061) hose fitting and braided SS hose. We had installed electroless...
  2. brgriffi

    Sealed Rectangular Tubing - Stress from temp. increase

    Hello, We're designing a structural system that will have HSS 8x4x5/16 members approximately 8ft. long spanning in between two S12x31.8 beams. The tubes are water-tight welded to the edge of the structural steel; we need these tubes to be water-tight because the structure will be partially...
  3. brgriffi

    Driveshaft Critical Speed calculation

    Hi all, I'm looking for a way to roughly estimate the critical speed for an automotive driveshaft. It's a typical RWD driveshaft -- a hollow tube supported at each end by a U-Joint. 3" O.D., .083" thickness, 4130 steel. We have lengths from 10" through 60" in increments of 5".

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