hemical,paper,fertilizer,fabric,aviation?and?nuclear?.2.Decoration?field?:handrail,railing,staircase,screen,door,window,balcony,fence,bench,?furniture.3.Fluid,?gas?and?oil?transport4.Pressure?and?heat?transmission5.Construction?and?ornament6.Boiler?heat?exchangers.?Chemical?Composition(%):C:0.03%Mn:2.0%P:0.045%S:0.03%Si:1.0%Cr:16.0-18.0%Ni:11.0-14.0%Mo:2.0-3.0%?Mechanical Properties(Ksi/Mpa):Tensile Strength:? 70/485Yield Strength:?????? 25/170Elongation:???????