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  1. Hectorex

    Alloy 20 Pipe

    My client requires 12” Alloy 20 Pipe to ASTM B474 Class 3, single welded employing ER320LR filler, 100% radiographed. I have an offer for 12” Alloy 20 Pipe to ASTM B464, no addition of filler metal 100% radiographed and hydro tested at 500 psi. Service – Sulphuric Acid 93-98% Would you...

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