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Sheradising

Sheradising

Sheradising

(OP)
My specifications require all bolts to be sheradised.  This includes tempered anchor (holding-down) bolts that will be completely encased in concrete.  I understand that the sheradising process requires heat in the range of 370-500 degress Celcius and am concerned about the heat affecting the tempered bolt strength.  Is this a valid concern?  Further, if the bolts are completely encased in concrete in an interior, controlled environment is the corrosion control provided by sheradising actually needed?

RE: Sheradising

That's cooler than hot-dip galvanizing. Unless it's a specialized application, I doubt it will be a problem. If you're still in doubt, call a manufacturer or ask in one of the metallurgy forums.

How much cover will the encased bolts have? Will they be in a chloride rich environment?

     "...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928

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