Advantage of carbon steel casting parts Carbon steel casting part  is widely favored in various industries due to their multiple advantages, you can find in the following key aspects: 1. Excellent and Adjustable Mechanical Properties. The most notable advantage of carbon steel castings is their great mechanical properties, which can be easily adjusted by changing the carbon content (usually between 0.05% and 1.35%). Low-carbon steel castings (lower carbon content) offer good plasticity and weldability, making them easy to process and form.