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Q 9. Will hot dip galvanizing affect the strength of steel ?

Ans: If the steel used is normal mild structural steel, which has not been heat treated to achieve any increased strength then galvanizing does not affect the properties in any way. If steel used is work hardened, then hot dip galvanizing( dipping in temp up to 415deg C will certainly have some annealing affect on steel, which may reduce the strength of steel.