Series of tests such as material composition

short time strengthen/ ductility under room or high temperature

impact toughness

processing property

microstructure examination

mechanical properties of fracture

aging test and high temperature endurance test were conducted to evaluate the performance of welded joint between S30432 steel pipe and T92 dissimilar steel.Moreover

the results were compared with that of the imported SUPER304H steel pipe and T92 dissimilar steel.It shows that

for welded joint between S30432 steel pipe and T92 dissimilar steel

its weldability and short term performance can satisfy the requirements of DL/T 868—2004

DL/T 751—2001

and other relevant standards.Meanwhile

its performance is as well as that of SUPER304H+T92 prepared at the same batch or packed from Japan.