Chemical properties and process properties of metallic materials
(1) Chemical properties Refers to the chemical or electrochemical reaction of the shaped tube metal material against the surrounding medium, including: 1. Corrosion resistance: refers to the ability of metal materials to resist various media erosion; 2. Antioxidant: refers to the ability of the shaped tube material to resist the generation of scale at high temperatures. (2) process performance Refers to those properties of materials that withstand a variety of processing and processing capabilities, including: 1. Casting performance: Refers to whether the metal or alloy is suitable for casting. It mainly includes flow properties, full moldability; shrinkage, ability to shrink volume when the casting solidifies; segregation refers to chemical composition unevenness. 2. Welding performance: refers to the welding of two or more kinds of metal materials by heating or heating and pressure welding methods, and the interface can meet the purpose of use. 3. To...