What is 10B21 grade steel?

10B21 grade steel is a low-alloy steel that contains approximately 0.10% carbon and is alloyed with elements like boron, which enhances its hardenability and strength. It is commonly used in applications that require good weldability and toughness, such as in automotive components and structural applications. This grade of steel is often characterized by its ability to be heat-treated for improved mechanical properties.