Release time：2020-01-16 18:44 Browse：
While both 10B21 and 1022 are commonly used low-carbon steel types, they exhibit notable differences in their chemical composition, which impacts the carburizing results of long self-tapping screws:
Carbon Content and Case Hardness:
10B21 has slightly higher carbon content and contains boron, which enhances the case depth and surface hardness after carburizing. This makes it ideal for high-strength, wear-resistant applications.
1022, on the other hand, offers a moderate hardness after carburizing and is more suitable for standard-strength applications, though with less wear resistance than 10B21.
Formability and Cost:
1022 is easier to form and cold-head, making it cost-effective and stable in processing.
10B21, while delivering better surface properties, is more expensive and slightly harder to process.
In summary, 10B21 is preferred for demanding structural uses requiring deeper hardening and greater durability, while 1022 is suitable for general-purpose fasteners with lower cost requirements.
