This paper describes the study of mechanical properties of short stainless steel pipes, determined through compression testing. These pipes were previously exposed to aggressive environments. The environments were as follows: 5% sulfuric acid, 20% sulfuric acid, 20% nitric acid. Compression tests were performed using an Instron 3382 testing machine. Subsequently, the measurement results were analyzed and interpreted. Engineering structural elements and structures made of weathering steel have increased resistance to atmospheric corrosion, and structural elements made of stainless steel are resistant to atmospheric corrosion [1, 2]. According to monograph [1], weathering steels are obtained by adding alloying elements such as chromium (Cr), nickel (Ni), copper (Cu), phosphorus (P), and molybdenum (Mo). The addition of these components results in the formation of a dense oxide layer on the steel surface, which protects against corrosion. The yield strength of weathering steels according to the PN-EN 10025-5 standard ranges from 235 MPa to 355 MPa. According to monograph [1], stainless steels contain at least 10.5% chromium as an alloying element. Most steels contain 18% chromium and 10% nickel, and molybdenum is added to some. Due to the presence of alloying additives, a thin, transparent, passive oxide layer forms on the steel surface, which protects the steel from corrosion. In the event of damage to the steel (e.g., a cut), this layer regenerates itself upon contact with air. This steel is also resistant to most aggressive chemical environments. In terms of microstructure, stainless steels are classified as: ferritic, austenitic, and austenitic-ferritic. The yield strength of stainless steels according to the PN-EN 1993-1-4 standard ranges from 280 MPa to 480 MPa (in the thinnest products). Stainless steels are characterized by a non-linear relationship (…)
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Source: Logistyka Magazine