Tyrone,
Because WPS state minimum preheat: preheat to remove moisture. so now i need to find out what is mean of this moisture. i need to remove by preheat and how much temperature steel can collect moisture. if i not miss understanding the moisture should be evidence can see by naked eye, vapor or water then i should remove it.
do u believe that steel can absorb moisture?if did then i need to do the preheat every part or every joint before start welding even plate is1/8"(3 mm) thick.follow the WPS state!
if i do that. oh god! my welding job should be always delay and i will not got any profit bonus. oh No!