Non-Metallic Inclusions of 34Mn2V (After Rolling Oxy-Acetylene Cutting)
Non-metallic inclusions are a kind of impurity in steel, which usually have a negative impact on the properties or requirements of steel. The presence of non-metallic inclusions can reduce the strength, plasticity and fatigue property of steel, and even cause surface defects and reduce the performance of steel. Different steel grades vary in the type, size, and properties of non-metallic inclusions, which can be effectively controlled by the selection of raw materials, control of metallurgical processes, and addition of electromagnetic stirring and extrusion. The following article will discuss the non-metallic inclusions of 34Mn2V (after rolling oxy-acetylene cutting).
The 34 Mn2V (after rolling oxy-acetylene cutting) steel contains various non-metallic inclusions, such as alumina (Al2O3), manganese sulfide (MnS), iron oxide (Fe2O3), silica (SiO2), and chrome oxide (Cr2O3). Of these non-metallic inclusions, the most important are both alumina and manganese sulfide, which is mainly due to the large amount of manganese present in the steel and its beneficial effect on rust resistance, strength, and heat treatment properties. The presence of alumina increases the oxidation resistance of the steel, while manganese sulfide increases the high-temperature strength.
Among the non-metallic inclusions of 34Mn2V (after rolling oxy-acetylene cutting) steel, some are globular and some are flaky. Globular inclusions are generated in the steelmaking process and are mainly alumina and MnS, while flaky inclusions mainly occur as a result of rolling and cutting. Flaky inclusions can be divided into three types: fibriform inclusions, plate-like inclusions, and schleif-like inclusions. In the globular type of non-metallic inclusions in 34Mn2V steel, the alumina is dispersive and the MnS is uniform.
The size of non-metallic inclusions present in 34Mn2V (after rolling oxy-acetylene cutting) steel ranges from 0.5 to 2 mm. The size of the non-metallic inclusions has a significant effect on the performance of the steel. In general, the smaller the size of the non-metallic inclusions, the better the performance of the steel. However, if the non-metallic inclusions are too small, it may cause thermal embrittlement of the steel.
In conclusion, non-metallic inclusions of 34Mn2V (after rolling oxy-acetylene cutting) steel mainly includes alumina, manganese sulfide, iron oxide, silica, and chrome oxide components, of which the most important are both alumina and manganese sulfide. The size of the non-metallic inclusions ranges from 0.5 to 2 mm, and its size has a significant effect on the performance of the steel. It is important to control the size of the non-metallic inclusions to ensure the performance of the steel.