... shutdown procedures. For example, nitrogen purging, soda ash washing prior to opening the equipment to the atmosphere, and/or circulating dry air is required. Such procedures are costly and time consuming. Therefore, stabilized austenitic stainless steels such as UNS S32100 or UNS S34700 are widely used...

... Curve, the fracture toughness will increase with the crack depth. CASE STUDY: REACTOR CRACKING Abstract In general, austenitic stainless steels behave in a more ductile than brittle manner and do not typically experience a ductile-to-brittle transition like typical ferritic steels. Furthermore...

... resistance equivalent numbers (PREN) reported in Table 1 were calculated using the modified equation introduced in 2001 ² for Mn-stabilized austenitic stainless steels: (1) PREN-Mod = Cr + 3.3 Mo + 16 N − 0.5 Mn Table 2 Reported Chemical Composition in wt.% of investigated CrMn...

... corrosion resistance. Stainless steel materials investigated include Type 304, Type 316, and Type 2205 used for piping, flanges, and other fittings. austenitic stainless steel duplex stainless steel welding MIC pipe flange INTRODUCTION The importance of weld quality is well known. If the surface...

.... Pitting corrosion Stress corrosion cracking Electrochemical noise Austenitic stainless steel INTRODUCTION The limited resistance of austenitic stainless steels to stress corrosion cracking (SCC) in hot chloride (Cl^-)-containing environments is very well known. ¹...

...Besides being non-magnetic, NMDC must be heavy, to apply weight on the drill bit, and stiff, to transmit force without buckling. This function translates into a required yield strength above 110 ksi (758 MPa), that is quite high for austenitic stainless steels, with a minimum Charpy impact...

... for the annealed tube product. austenitic stainless steel nickel-based alloy critical pitting temperature (CPT) Pitting resistance equivalent (PRE) number corrosion resistant alloy (CRA) annealed condition cold worked condition INTRODUCTION Cold worked Alloys UNS N08028 and UNS N08029 have been successfully...

...Abstract The corrosion behavior of austenitic stainless steels (UNS S30400/S30403, S30800) with machined, electropolished, or temper filmed surfaces was tested in deaerated, pH adjusted water at 500 °F (260 °C), 550 °F (288 °C) and 620 °F (327 °C) for up to 10,000 hours. Test specimens were...

...Abstract Several warm-worked Cr-Mn-N austenitic stainless steels with 110 to 135ksi (758-931 MPa) yield strength and a wide range of Cr, Mn, and N were evaluated for pitting and crevice corrosion in both as-received condition and in a post-polymer thermal cure condition aimed to assess...

... stainless steel under-deposit corrosion nickel-based alloys sensitization austenitic stainless steel fatigue cracking INTRODUCTION Table 1 Replacement/old flex hose materials chemistry. Element Replacement Hose [wt.%] Old Hose [wt.%] UNS N06625 [wt.%] Carbon (C) 0.048 0.043 0.10 max...

...Abstract Many unexpected cracks occur in aging 18 years old austenitic stainless steel on cryogenic pipeline application. Operations need to be stopped for treatment and repair which results in delay transmission against customer. Systemic root cause analysis reveals that random cracks initiated...

...The typical weld metal of austenitic stainless steels contains two phases (i.e. austenite + ferrite). It is believed that the corrosion problems commonly associated with welding of austenitic stainless steels are related to the chemical segregation. It has been reported that the solidified fusion...

... are austenitic stainless steels and ferritic-martensitic steels. The autoclave tests were performed in fluid mixtures containing CO₂, O₂, and H₂O at 8 MPa and at two temperatures, 50 °C and 245 °C, to approximate heat exchanger operating conditions. Mass change measurements...

... chromium-manganese austenitic stainless steels as well as 17-4PH in the 110ksi-to-130ksi yield strength range (34 - 35 HRC max). Complementarily, microstructure analyses and electrochemical tests, among other standard tests, were applied to all alloys for comparison purposes and were used to explain...

... steel super-austenitic stainless steel duplex stainless steel super-duplex stainless steel hyper-duplex stainless steel pitting corrosion sodium chloride magnesium chloride salt solutions electrolyte ASTM G150 UNS S31600 UNS N90804 UNS S31254 UNS S34565 UNS 32654 UNS 32304 UNS S32005...

...Abstract A laboratory study was performed by exposing seven candidate heat-exchanger alloys to simulated conditions of advanced open supercritical CO₂ (sCO₂) Brayton power cycles. The alloys, consisting of ferritic steels, austenitic stainless steels, and nickel-base alloys...

... Polythionic acid stress corrosion cracking (PTASCC) during shut down (neutralization & nitrogen purging), however cracking occurred in the 321 (UNS S32100) type austenitic stainless steel (SS) weld-olet right after the start up. Materials selection of the low point drain, which used Alloy 825 (UNS N08825...

... of the complexity of this type of testing the use of special specimen geometries, non-contacting 3D measurement techniques and thermography were considered. The influence of loading conditions, temperature and corrosion on the fatigue life and reliability of one Cr-Mn austenitic stainless steel and the alloy UNS...

.... Consequently, a new family of strain-hardened austenitic stainless steels was specifically developed for more than 35 years for drilling applications. Originally CrMn- and later also CrMnNi- non-magnetic stainless steels with varying nitrogen and molybdenum contents have become the most commonly used grades...

... on austenitic stainless steel exposed to a sour environment was studied by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) and electrochemical measurement. The results show that the pitting potential of UNS S31603 steel decreases with a rise of Cl⁻ concentration...