1. … CEWELD 308H has been developed for typical operating temperatures up to 400ºC, … range. It also shows good resistance to general corrosion. CEWELD 308H shows higher temperature and scale resistance than the standard … 321H, 347, 347H,  UNS S30409, S32109, S34709, S30400, S32100, S34700 … 308H … A 5.9: ER308H … 14343-A: G 19 9 H …