Stainless steels (austenitic, ferritic, martensitic, and duplex) contain at least 10.5% chromium, which forms a passive oxide layer for corrosion resistance. Applications include:
Steel is chosen for its superior mechanical and physical properties, which can be engineered through alloying and heat treatment [1, 2, 5]. Mechanical Properties Standard carbon steel fails in hours
Based on chemical composition and application, steel falls into four major categories: It is exceptionally hard and strong but highly
Occurs in sour service (H₂S gas). Standard carbon steel fails in hours. Requirement: Use NACE MR0175 / ISO 15156-approved alloys (e.g., 4130 modified). 4130 modified). A highly strained
A highly strained, body-centered tetragonal (BCT) structure formed by rapid cooling (quenching) of austenite. It is exceptionally hard and strong but highly brittle until tempered. 2. Effects of Alloying Elements
A plate-like microstructure formed at cooling rates between pearlite and martensite, offering a good balance of strength and toughness. 2. Key Mechanical and Physical Properties
A common, comprehensive classification system for carbon and alloy steels.