Aisi 420 Stainless Steel Heat Treatment

Process anneal grade 420 can be annealed at 735 to 785 c and air cooled.

Aisi 420 stainless steel heat treatment.

Type 420 stainless steel heat treatment annealing. Heat treatment of aisi 420 grade martensitic stainless steel a. Aisi 420 high carbon steel is a high carbon steel with a minimum chromium content of 12. 2h13 does not show resistance to chlorine salts and intergranular corrosion.

X20cr13 1 4021 aisi 420 specification and application martensitic stainless steel intended for thermal improvement showing high mechanical properties strength ductility and machinability while maintaining sufficient corrosion resistance. Annealing for astm aisi 420 wrought stainless steel. Annealing grade 420 stainless steels can be heated at temperatures from 840 to 900 c followed by slow furnace cooling at 600 c and then air cooling. It is magnetic in both the annealed and hardened conditions.

Heating to austenitizing temperature 980 1065 c 1800 1950 f. 0preheat part to 1 450 f and hold for 45 minutes. Lade mukand ltd mumbai maharastra india thane india martensitic stainless steel aisi 420 grade of diameter 55mm was taken for experiment to study the mechanical and microstructure properties of the steel in hardened and tempered condition. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished surface grounded or hardened.

Maximum corrosion resistance is attained only in the fully hardened or fully hardened and stress relieved condition. Subcritical annealing recommended temperature for aisi. Like any other stainless steel aisi 420 can also be hardened through heat treatment. Part placed into a vacuum furnace.

All parts cleaned in a solvent bath to remove all traces of oil prior to heat treatment. Currently our sponsor s heat treating process for the 420 stainless steel product is listed below. Hardening for 420 grade stainless steel.