Classification and Application of Industrial Steel
Date：2020-05-14 Source：zk corp Views:
Industrial steel is divided into carbon steel and alloy steel according to chemical composition. Carbon steel refers to an iron-carbon alloy with a carbon content of less than 2.11%. Alloy steel refers to an iron-based alloy obtained by intentionally adding a certain amount of alloying elements to the carbon steel in order to improve the performance of the steel.
Carbon structural steel is widely used in our company, mainly used in various equipment cylinders, bottom plates, shells, etc. Usually Q + minimum yield strength value + quality grade symbol to represent. Q stands for "yield strength", the unit of yield strength is MPa; the quality grade symbols are A, B, C, D, E. From A to E, the content of P and S in the steel decreases sequentially and the quality improves. For example, Q235B means steel with a yield strength of 235 MPa and a quality grade of B.
High-quality carbon structural steel grades are usually represented by two digits, which represent the average carbon content of the steel in parts per 10,000. For example, 45 steel represents a high-quality carbon structural steel with an average carbon content of 45/10000 (ie 0.45%). Mainly used for making shafts and pinions.
Alloy structural steel is represented by two digits (represents an average carbon content in parts per 10,000) + alloy element symbol + the percentage content of the element. When the average content of alloy elements is less than 1.50%, only the element symbol is marked, and the content is not marked. For example, 60Si2Mn represents a low-alloy structural steel with carbon content of 0.60%, Si content of 1.50 to 2.49%, and Mn content of less than 1.50%. For example, in order to improve the performance of the shaft, 40Cr can be used for the shaft, and 60Si2Mn can be used for the spring.
We often use stainless steel and heat-resistant steel for high-temperature or wear-resistant parts of equipment. For example, 1Cr18Ni9Ti is used for the sealing of the inlet and outlet of the rotary kiln or rotary cooler, and other high-temperature parts of equipment.
Rotary Kiln Scale Seal
Vertical Cooler Hood
Cast carbon steel is suitable for manufacturing parts with complex shapes, high strength and toughness requirements.
Steel refers to high-manganese steel that undergoes impact hardening under impact load. ZGMn13 is used by our company for parts that that are both wear-resistant and impact-resistant, such as lining and jaw plates of ball mills and crushers.
Above is the relevant introduction about the classification and application of industrial steel. In addition, there are many applications of industrial steel, and with the development of economy and technology, it will be more and more widely used. If you want to know more about the relevant information for industrial steel, welcome to inquiry ZK Corp.