API standard 650 austenitic stainless steel storage tanks slab foundations

API 620 Tank Standard Post-heat Treatment (Stress Relief)
The post-heat treatment now performed on pressure vessels is of established value, although the mechanism by which the improvement is realized may be open to debate. Post-heat treatment of API standard 650 austenitic stainless steel storage tanks tank sections when the plate thickness exceeds 11/4 in. is required as stated in 5.25. In special cases, the possibilities of post-heat treatment after erection should be explored. Post-heating an insulated tank may be possible if an ample source of heat is readily available and if the rigidity of the tank is adequate.
The thermal stress-relief treatment performed on pressure vessels is recognized as a means for reducing the probability of brittle failures.

The API 650 is widely used for tanks designed to withstand low internal pressures, for the API standard 650 austenitic stainless steel storage tanks storage of typical products such as crude oil, petrol, chemicals and water. We have extensive experience when it comes to API 650 tanks, varying from tanks built in the factory up to +/- 500m3, to tanks built on-location up to +/-15,000 m3.

Anti corrosion of API standard 650 austenitic stainless steel storage tanks:
After using for a certain period of time, it is necessary to check the corrosion protection of the API standard 650 austenitic stainless steel storage tanks. If necessary, the outer wall of the metal oil tank should be painted with new anti-corrosion paint to ensure that the outer wall of the API standard 650 austenitic stainless steel storage tanks does not fall off and has good waterproof and rust resistance.
API standard 650 austenitic stainless steel storage tanks cleaning:
The long-term use of API standard 650 austenitic stainless steel storage tanks will produce impurities on the tank wall and deposit on the tank bottom, resulting in tank corrosion to leakage. According to the safety standard of oil tank, the API standard 650 austenitic stainless steel storage tanks shall be cleaned and derusted regularly to ensure the quality of oil stored and the safety of oil tank equipment.