1.1220 - C56D2 / 10016-2 / 1055 / G10550
Description
Material 1.1220 (C56D2 / 10016-2 / 1055 / G10550) – Spring Steel Properties and Applications
Material 1.1220, also known as C56D2 or AISI 1055, is an unalloyed hardenable spring steel containing approximately 0.55 percent carbon. It offers a good combination of strength, elasticity, and wear resistance, and responds well to quenching and tempering. C56D2 is commonly used for springs, tools, clutch components, knives, and engineering parts requiring both toughness and resilience. After proper heat treatment, this steel achieves a balanced structure with good hardness, toughness, and dimensional stability.
Material group: Unalloyed spring steels