1Cr13Mo (13Cr13Mo) stainless steel is a steel grade with high strength and high corrosion resistance, which is widely used in steam turbine blades, high-temperature parts and other fields. Below, we will introduce the characteristics and applications of this material in detail from the aspects of chemical composition, mechanical properties, heat treatment specifications and metallographic structure.
1. Chemical composition.
The chemical composition of 1Cr13Mo (13Cr13Mo) stainless steel mainly includes carbon, silicon, manganese, sulfur, phosphorus, chromium, nickel, molybdenum and other elements. Among them, carbon is an important element that affects the corrosion resistance and strength of stainless steel, and the content is generally 008%～0.18%. There are also certain restrictions on the content of silicon, manganese and other elements to ensure that the material has good processing properties and welding properties. In addition, the material is also allowed to contain a certain amount of nickel to improve the corrosion resistance and high-temperature strength of the material.
2. Mechanical properties.
1Cr13MO (13Cr13MO) stainless steel has high tensile strength and conditional yield strength, and is able to withstand large loads and stresses. At the same time, the material also has good elongation and cross-sectional shrinkage, which can effectively absorb energy and resist deformation. In addition, the material has good impact energy and hardness, which can resist impact and wear.
3. Heat treatment specifications and metallographic structure.
The heat treatment specification of 1Cr13Mo (13Cr13Mo) stainless steel includes three steps: annealing, quenching and tempering. The temperature of annealing is generally between 830 900, the temperature of quenching is between 970 1020, and the temperature of tempering is between 650 750. Through a reasonable heat treatment process, good structure and properties can be obtained, and the corrosion resistance and strength of the material can be improved.
Metallographic structure is one of the important factors that determine the properties of materials. The microstructure of 1Cr13Mo (13Cr13Mo) stainless steel is characterized by martensitic type, which has high hardness and strength, as well as good corrosion resistance and heat resistance.
Fourth, the delivery status.
1Cr13Mo (13Cr13MO) stainless steel is generally delivered in a heat-treated state, and its heat treatment type is specified in the contract. If the type of heat treatment is not specified in the contract, the goods will be delivered in a non-heat treated state. At the time of delivery, the materials should meet the requirements of relevant standards and specifications to ensure the stability of quality and performance.
In short, 1Cr13Mo (13Cr13Mo) stainless steel is a steel grade with high strength and good corrosion resistance, which is widely used in steam turbine blades, high-temperature components and other fields. In the process of manufacturing and use, the requirements of relevant standards and specifications should be strictly adhered to ensure that the quality and performance of materials are stable and reliable.