Method for determination of resistance to intergranular corrosion of austenitic stainless steels: copper sulphate-sulphuric acid method (Moneypenny Strauss test)

Abstract CarTech 347 is a niobium+tantalum stabilized austenitic stainless steel. Like Type 321 austenitic stainless steel, it has superior intergranular corrosion resistance as compared to typical 18-8 austenitic stainless steels. Since niobium and tantalum have stronger affinity for carbon than chromium, carbides of those elements tend to precipitate randomly within the grains instead of forming continuous patterns at the grain boundaries. CarTech 347 should be considered for applications requiring intermittent heating between 425 and 900 °C (800 and 1650 °F). This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1339. Producer or source: Carpenter Technology Corporation.

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Determination of upper boundary pitting resistance potential values for austenitic stainless steels under corrosion fatigueEskelinen, P., Forsen, O., Ylasaari, S. and Spahn, H. Werkst. Korros. Jan. 1992 43 (1) 17–22

International Journal of Fatigue ◽

10.1016/0142-1123(93)90020-q ◽

1993 ◽

Vol 15 (2) ◽

pp. 155-155

Keyword(s):

Stainless Steels ◽

Austenitic Stainless Steels ◽

Upper Boundary

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Study on the Effects of Heat Treatments on the Physical and Mechanical Characteristics of 1.4301 Stainless Steel

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.42.57 ◽

2021 ◽

Vol 42 ◽

pp. 57-62

Author(s):

Maria Stoicănescu

Keyword(s):

Heat Treatment ◽

Stainless Steel ◽

Stainless Steels ◽

Mechanical Characteristics ◽

Austenitic Stainless Steels ◽

Heat Treatments ◽

Hot Plastic Deformation ◽

Improved Characteristics ◽

Physical And Mechanical Characteristics

The 1.4301 stainless steel is part of the category of austenitic stainless steels, steels which do no undergo heat treatments in general, as they are intended for hot plastic deformation in particular. The aim of the research presented in this paper was to obtain significantly improved characteristics of the resistance properties in relation to the values obtained under classical conditions, by applying heat treatments. Samples taken from the delivery state material underwent annealing, quenching and ageing heat treatments. Subsequently, the samples thus treated were subjected to tests enabling the determination of the correlations between the heat treatment parameters, the structure and the properties.

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