13 8 Stainless Steel Heat Treatment

The principal features of type 13 8 are good resistance to general and stress corrosion cracking and high strength that is developed by a single low temperature heat treatment.

13 8 stainless steel heat treatment. Inert gas shielding with helium is preferred. Alloy 13 8 stainless is usually available in an annealed condition also known as solution heat condition or condition a. Heat treating after overaging ph 13 8 mo stainless in the h 1150 and h 1150m overaged conditions will not respond to further aging treatments. 13 8 uns s13800.

All lubricants and coolants particularly sulfur bearing should be removed prior to heat treatment brazing and pickling. Type 13 8 is a martensitic precipitation age hardenable stainless steel. Solution treat from 1675 1725 f for 15 to 30 minutes at temperature. Ati 13 8 alloy can be machined in both the annealed and hardened conditions.

Air cool or oil quench to below 60 f to effect complete transformation to martensite. In order to allow a complete martensitic transformation the alloy is solution treated at 913 940 c for 15 to 30 minutes followed by air cooling or oil quenching to below 15 5 c. Then treat at 1150 f 10 f for 4 hrs. Alloy 13 8 stainless steel is used in aerospace components landing gear nuclear reactor components petrochemical industry injection molding equipment etc.

Heat solution treated material at 1400 f 10 f for 2 hrs. 13 8 ph steel provides a wide range of properties through a single precipitation hardening heat treatment. In the annealed condition use machine speeds 20 to 30 percent lower than those used on 304 stainless steel.