38Cr2Mo2VA
38Cr2Mo2VA is a chromium-molybdenum-vanadium low alloyed steel which is used in a variety of applications. The steel is a low alloyed steel created by melting chromium, molybdenum, and vanadium, providing it with impressive strength and enhanced ductility.
In certain applications, 38Cr2Mo2VA is often referred to as a C-Mo-V steel due to the element combination it contains. The steel is used in the production of various types of components and is especially prevalent in the automotive industry. Its use is typically determined by the amount of strength and corrosion resistance required for the part being created.
When it comes to welding 38Cr2Mo2VA, it is essential that the correct pre-treatments and alloys are used as the wrong combinations can weaken the molecular structure of the steel. The best pre-treatment for 38Cr2Mo2VA is a heat treatment with a hardenability of measures between 35 and 40 HRC. Doing this makes sure that the steel’s strength and hardness will remain consistent after it has been welded.
Similarly, due to the fact that the structure of the steel can be compromised easily when exposed to extreme temperatures, only appropriate alloys should be used during welding 38Cr2Mo2VA. This is typically AWS A5.5 E9018-M as this offers an optimal balance between strength and softness. Welders must take great care during welding to ensure that the parameters comply with the relevant test and strength requirements.
38Cr2Mo2VA is an extensively used alloy and if welded in the right way, it has a vast range of benefits. Its excellent strength and incredible ductility make it an ideal solution for components which require a high level of strength but still need to be flexible enough for movement. Its corrosion resistance is also notable, ensuring that components made from the steel do not weaken over time due to rust.
Due to its widespread use, 38Cr2Mo2VA also tends to be incredibly cost effective. This is necessary as parts created using the steel are often for safety critical components in machines and vehicles. As such, it is important that the steel does not add too much cost to the total production of these components and luckily, 38Cr2Mo2VA remains surprisingly cost effective.
Overall, 38Cr2Mo2VA is a great option for numerous applications as it has a range of benefits, many of which have been outlined above. When it comes to welding the steel, it is essential that the right pre-treatments and alloys are used, otherwise the qualities of the steel may be significantly weakened. However, it is possible to safely weld the alloy and in doing so, reap its many rewards.
