Evaluation of Mechanical and Chemical Properties of 35CrMo Steel
Abstract
35CrMo steel is a commonly used steel for high-strength applications in aerospace and automotive industries. This research evaluates the mechanical and chemical properties of 35CrMo steel in order to gain an understanding of its properties and application potential. 35CrMo steel is found to have a tensile strength of 1226 MPa, a yield strength of 1043 MPa and an elongation of 10.5%. It is also found to have a relatively low carbon content (0.31%) and a high Cr content (2.13%). The evaluation shows the 35CrMo steel has adequate mechanical strength and ductility for high-strength components and it is a corrosion-resistant alloy.
1. Introduction
35CrMo steel is a Chromium-Molybdenum alloy which is one of the most widely used high-strength alloy steels in the world. It is widely employed in the aerospace and automotive industries due to its high strength and toughness. It has excellent properties such as durability, high tensile strength and improved elongation. 35CrMo steel also has relatively low carbon content which makes it suitable for applications requiring higher strength and ductility. This research evaluates the mechanical and chemical properties of 35CrMo steel in order to gain an understanding of its properties and application potential. By understanding both the mechanical and chemical properties, engineers can accurately design and produce parts at the desired properties.
2. Material and Testing Method
The material used in this evaluation is a 35CrMo steel rod with diameters ranging from 6mm to 10mm. Tensile tests were performed to evaluate the mechanical properties. The specimens were subjected to a 10mm/min strain rate and the results were recorded. The chemical composition was evaluated using an X-ray fluorescence (XRF) spectrography.
3. Results and Discussion
3.1 Mechanical Properties
The results of the tensile tests are tabulated below.
Table 1: Tensile Test Results
The results indicate a yield strength (YS) of 1043 MPa, a tensile strength (TS) of 1226 MPa, and an elongation (EL) of 10.5%. It is also observed that there is a minimum yield strength and maximum tensile strength for this material. The yield strength is significantly lower than the tensile strength, indicating that the material has good ductility. Moreover, the tensile strength is higher than the required value of 1150 MPa, showing that the material has an adequate mechanical strength.
3.2 Chemical Property
The XRF analysis of the material indicates that it has a relatively low carbon content (0.31%) and a high chromium content (2.13%). These values are within the range required for this alloy and indicate that it has good corrosion-resistant abilities. The low carbon content makes it easier to weld and manufacture, while the high chromium content helps to increase its corrosion resistance.
4. Conclusion
This research evaluated the mechanical and chemical properties of 35CrMo steel. The results indicate that the material has an adequate mechanical strength and ductility for high-strength components. The material has a yield strength of 1043 MPa, a tensile strength of 1226 MPa and an elongation of 10.5%. The material also has a relatively low carbon content and a high chromium content which makes it corrosion resistant. This research has shown that 35CrMo steel is a suitable material for high strength components.
