Aisi 420 Stainless Steel Heat Treatment

Maximum corrosion resistance is attained only in the fully hardened or fully hardened and stress relieved condition.

Aisi 420 stainless steel heat treatment.

Heat treatment of aisi 420 grade martensitic stainless steel a. Process anneal grade 420 can be annealed at 735 to 785 c and air cooled. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished surface grounded or hardened. 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.

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. 0preheat part to 1 450 f and hold for 45 minutes. All parts cleaned in a solvent bath to remove all traces of oil prior to heat treatment. Type 420 stainless steel heat treatment annealing.

After the quenching and partitioning heat treatment the aisi 420 steel with high amounts of reversed austenite demonstrates a distinctive combination of high ductility and high ultimate tensile strength associated with deformation driven austenite to martensite transformation. Applications potential ak steel type 420 is a martensitic stainless steel that provides corrosion resistance similar to type 410 plus increased strength and hardness. Parts are heated to 1 8500f and held for 1 hour. 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.

Subcritical annealing recommended temperature for aisi. Heating to austenitizing temperature 980 1065 c 1800 1950 f. It is magnetic in both the annealed and hardened conditions. Currently our sponsor s heat treating process for the 420 stainless steel product is listed below.

Aisi 420 high carbon steel is a high carbon steel with a minimum chromium content of 12. Hardening for 420 grade stainless steel. Annealing for astm aisi 420 wrought stainless steel.