2Cr13 (manual arc welding) metallographic diagram

，关于GB/T1220 2Cr13(手工电弧焊)金相图

GB/T1220 2Cr13 (Hand Arc Welding) Metallography is the study of the physical properties of metal and its constituent elements. Metallography encompasses both the science and the art of studying metals, their alloying elements, and their structural changes. The most relevant aspects of metallography, however, are those that have been studied to reveal the essential character of the macrostructure and microstructure of a metallic material. Typically, this is accomplished by a combination of vision and a microscope, but in some cases other methods such as X-ray diffraction, scanning electron microscopy, acoustic microscopy and/or crystallographic diffraction are used.

Metallographic studies allow for the determination of a variety of characteristics such as crystal size, grain size, grain orientation, hardness, tensile strength, modulus of elasticity, ductility, porosity, brittleness, fatigue resistance, segregation of second phases, phases, and other material characteristics.

Metallographic techniques can be used to study both ferrous and nonferrous alloys, and produce detailed images of the individual grain structures. Images are produced by grinding, polishing, etching and/or other finishing techniques. When it comes to GB/T1220 2Cr13 (Hand Arc Welding) however, the material should be investigated without any of the above metallurgical techniques.

GB/T1220 2Cr13 is a common stainless steel which contains 13% chromium. It is a highly weldable steel that is used mainly for hand arc welding. Hand arc welding is the process of using an electric current to join metals by melting and flowing a filler material such as a wire into the joint area. GB/T1220 2Cr13 is used for a variety of applications including: knife blades and other cutting tools, cookwear, and decorative purposes.

GB/T1220 2Cr13 is most commonly studied through a process of visual inspection and observation. Visual analysis is a method of looking at a material in order to determine its composition. This means, when examining the macrostructure of GB/T1220 2Cr13 for a hand arc welding exam, the grain size, structure, extent of surface hardness, and the integrity of the joint should be determined by meticulous visual inspection. Other methods such as hardness testing, tensile strength tests, and microstructural studies are also encouraged when doing a hand arc welding exam on GB/T1220 2Cr13.

It is important to remember that GB/T1220 2Cr13 (Hand Arc Welding) Metallography should not be studied using any of the aforementioned metallurgical methods. Visual assessment and observation is the key when it comes to conducting a hand arc welding exam on GB/T1220 2Cr13. Metallurgical studies of this alloy must be conducted without the use of metallographic preparation procedures such as grinding, polishing, etching, and/or other finishing techniques.

GB/T1220-2007 2Cr13 is a kind of martensite stainless steel with high hardness and good corrosion resistance. Microstructure mainly includes lead-free martensite, and small amount of free carbon and local carbide.

2Cr13 is mainly used for processing blades and blades, as well as common bolts and nuts. On the whole, it is mainly used for mechanical and corrosion parts. Its mechanical properties are not as good as those of Cr12. The best temperature for welding is about 650℃.

2Cr13 has been widely used in the production of tools, dyes, knives and blades. Its microstructure mainly includes lead-free martensite, and a small amount of free carbon and local carbide. Its corrosion resistance is similar to Cr12MoV.

2Cr13 is a kind of martensite stainless steel. The finished product must be quenched and tempered after solid solution treatment, and it has high hardness and good wear resistance. Its microstructure is mainly martensite, traces of ferrite and pearlite, and local carbide. Under special conditions, some of the carbides may be precipitated as iron carbide. The carbon content is about 1.0%, and the chromium content is about 13%. With a small carbide content and fine dispersion, the hardness of the steel can be maintained above 57 HRC in quenching and tempering.

In summary, GB/T1220-2007 2Cr13 stainless steel is a kind of martensite stainless steel which is mainly used for processing blades and blades, as well as common bolts and nuts. Its mechanical properties are not as good as those of Cr12. On the whole, it has high hardness, good wear resistance and corrosion resistance.