Nickel Alloy 825 may be a nickel-iron-chromium alloy with additions of Mo, copper, and metal. The alloys chemical composition is meant to supply exceptional resistance to several corrosive environments. The nickel content is spare for resistance to chloride-ion stress-corrosion cracking. The...
Nickel Alloy 825 may be a nickel-iron-chromium alloy with additions of Mo, copper, and metal. The alloys chemical composition is meant to supply exceptional resistance to several corrosive environments. The nickel content is spare for resistance to chloride-ion stress-corrosion cracking. The nickel, in conjunction with the Mo and copper, conjointly provides outstanding resistance to reducing environments, like those containing sulphuric and chemical element acids. The Mo conjointly aids resistance to roughness and crevice corrosion. and also the metal addition serves to stabilize the alloy – following acceptable heat treatment – against sensitization to inter-granular corrosion.
C | Si | Mn | S | Ni | Cu | Fe | Cr | Mo | Ti | Al | |
MIN | - | - | - | - | 38.0 | 1.5 | 22.0 | 19.5 | 2.5 | 0.6 | - |
MAX | 0.05 | 0.5 | 1.0 | 0.03 | 46.0 | 3.0 | - | 23.5 | 3.5 | 1.2 | 0.2 |
Features:
Exceptional resistance to corrosive environments
Resistance to erosion and crevice corrosion
Good weldability by all typical processes
Resistance to general corrosion, pitting, crevice corrosion, inter-granular corrosion, and stress-corrosion cracking
Applications:
Chemical process
Oil and gas recovery
Pickling Operations
Handling of hot wastes
Seawater Heat
Ore process
Pollution management
Acid production
Nuclear fuel reprocessing
Petroleum processing
Exchangers
Heating Coils
Corrosion Resistance:
With its high content of Cr, molybdenum, and copper, alloy 825 provides wonderful general (overall) corrosion resistance against oxidizing and non-oxidizing acids. Its corrosion resistance to oil of vitriol is outstanding.
