1. Introduction to the basic parameters of x20cr13
X20Cr13 is a chromium-based stainless steel with 17% to 19% chromium and 015% to 025% carbon, but also contains a certain amount of nickel, manganese, silicon, phosphorus and sulfur. This stainless steel has high hardness, high strength, high wear resistance and good corrosion resistance, especially at high temperatures and pressures.
Second, the performance characteristics of X20CR13
1.Excellent corrosion resistance:
X20Cr13 has very excellent corrosion resistance and can resist the corrosion of general acids, alkalis and salt water, so it is often used in the manufacture of corrosion-resistant equipment and food processing machinery.
2.High temperature strength and abrasion resistance:
Due to its high chromium and high carbon chemical composition, X20Cr13 has high hardness and strength, while also being able to maintain stable performance at high temperatures, so it is widely used in the manufacture of mechanical equipment and tools at high temperatures and pressures.
3.Good machinability:
X20Cr13 has good machinability and can be processed and formed in a variety of ways, including forging, casting, heat treatment, cold working, etc.
3. Metallographic structure and material structure of X20Cr13
The metallographic structure of x20cr13 is mainly composed of ferrite and a small amount of martensitic and afterglow. Of these, ferrite is the most stable phase and remains constant at room temperature, while martensitic and afterglow are formed after heat treatment.
4. Mechanical properties of X20Cr13
The mechanical properties of X20Cr13 mainly include strength, hardness, toughness and plasticity. Its tensile strength is about 520MPa, yield strength is about 210MPa, hardness is 200HB, impact toughness is 11J cm2, and elongation is about 45%.
5. Common applications of x20cr13
X20CR13 is widely used in the manufacture of various machinery and equipment, tools and food processing machinery, including plates, round bars, forgings, seamless pipes and forging rings, etc. Among them, plates are mainly used to manufacture shells and parts of various mechanical equipment and tools; Round bars are commonly used in the manufacture of various fasteners such as shafts, bolts and nuts; Forgings are commonly used to make tools such as hammerheads, pliers and hammer wheels; Seamless pipes are mainly used to manufacture equipment and pipelines under high temperature and high pressure; Forging rings are commonly used in the manufacture of various bearings and gears.
6. The difference between casting and forging and smelting process
Casting and forging are common metalworking processes, where casting refers to the process of pouring molten metal into a mold and cooling and solidifying, while forging refers to the process of heating the metal to a certain temperature and making it into the desired shape through the action of hammering or pressure.
The smelting process of X20Cr13 mainly includes electric arc furnace smelting and induction furnace smelting. Among them, electric arc furnace smelting is to add refined iron and scrap steel and other high-quality materials to the electric arc furnace, melt them through arc heating, and add an appropriate amount of chromium, nickel and other alloying elements for alloying, and finally obtain the required stainless steel materials. Induction furnace smelting is to put chromium, nickel and other alloying elements into the induction furnace together with raw materials, and melt and mix them evenly through induction heating to form the required stainless steel materials.
7. Cold rolling, hot rolling, cold drawing, electroslag and electric furnace treatment
Cold rolling, hot rolling and cold drawing are common metal processing processes, where cold rolling refers to the process of processing metal sheets into the desired thickness and shape, hot rolling refers to the process of heating the metal to a certain temperature and pressing it, and cold drawing refers to the processing of metal materials by drawing.
Electroslag and electric furnace treatment is a common metal processing process, where electroslag treatment refers to the process of melting and purifying metal materials after heating them with electric current, while electric furnace treatment refers to the process of putting metal materials into an electric furnace for heating and smelting.
8. Conclusion
X20Cr13 is a metal material with excellent corrosion resistance, high temperature strength and good machinability, which is widely used. By analyzing its metallographic structure, mechanical properties and applications, the properties and characteristics of the material can be better understood. At the same time, familiar with casting, forging, smelting technology, cold rolling, hot rolling, cold drawing, electroslag and electric furnace treatment and other processing technologies, it is of great significance for the manufacture of high-quality X20Cr13 products.