Alloy 825 yog austenitic npib tsib xee-hlau-chromium alloy kuj txhais los ntawm kev ntxiv ntawm molybdenum, tooj liab thiab titanium. Nws tau tsim los muab kev tiv thaiv tshwj xeeb rau ntau qhov chaw corrosive, ob qho tib si oxidizing thiab txo.