304l stainless steel nitric acid
Feb 01, 2009 · Abstract. The corrosion resistance of three indigenous nitric acid grade (NAG) type 304L stainless steel (SS), designated as 304L1, 304L2 and 304L3 and two commercial NAG SS designated as Uranus-16 similar to 304L composition and Uranus-65 similar to type 310L SS were carried out in nitric acid media. Electrochemical measurements and surface film analysis were performed to evaluate the Crevice Corrosion of Type 304L and 316L Stainless Steels Crevice corrosion of 304 L- and 316 L-stainless steels has been examined for 7.2 or 1.8Ms in nitric acid solutions with/without RuNO (NO 3) 3, by measuring the mass loss of the specimen, the amounts of metal ions dissolved, and the galvanic current.
Austenitic stainless steels type 304L and 316L are largely used as structural materials for equipments handling nitric acid media in nuclear reprocessing plants. In almost all nitric media, these materials, protected by a chromium oxide rich layer, remain in their passive state. Effect of Heat Treatments on the Electrochemical of the sensitization degree of 304L SS raised to the maximum. The degree sensitization of 304L SS increased significantly from 500 to 900 C, which meant that the trend of intergranular corrosion of 304L SS had a specific sensitive temperature range of 500-950 C. Mechanism of corrosion of AISI 304L stainless steel in the The corrosion behavior of Type 304L (UNS S30403) nitric acid grade (NAG) stainless steel in boiling 9 M and 1 M nitric acid (HNO 3) and with the addition of 0.03 M sodium fluoride (NaF) and with
Dec 01, 1994 · Stainless steel type 304L, nitric acid grade (NAG), is the new material suitable for such applications. It has guaranteed low corrosion rates and is not susceptible to intergranular corrosion (IGC) in nitric acid environments. The corrosion behavior of type 304L stainless steel, NAG, and type 304L stainless steel, commercial purity (CP), in Most Widely Used Austenitic Stainless Steel, a Versatile Alloy 304/304L has good resistance to atmospheric corrosion, foods and beverages and to many organic and inorganic chemicals in moderately oxidizing to moderately reducing environments. The high chromium content of the alloy provides resistance to oxidizing solutions such as nitric acid up to 55% weight and up to 176°F (80°C). Sanmac® 304/304L Sandvik Materials TechnologyNov 14, 2019 · Oxidizing acids like nitric acid; Stress corrosion cracking. Austenitic steels are susceptible to stress corrosion cracking. This may occur at temperatures above about 60°C (140°F) if the steel is subjected to tensile stresses and at the same time comes into contact with certain solutions, particularly those containing chlorides.
The 18 to 19 percent of chromium which these alloys contain provides resistance to oxidizing environment such as dilute nitric acid, as illustrated by data for Alloy 304 below. Alloys 304 , 304L , and 304H are also resistant to moderately aggressive organic acids