When selecting stainless steel, 1.4034 and 1.4116 are two martensitic stainless steel grades that are frequently compared. Both belong to the European EN system and can be hardened by heat treatment. They are widely used in knives, medical instruments, and precision components. However, they differ

Both 1.4021 and 1.4028 are 13% chromium martensitic stainless steels. Their hardness and strength can be increased through quenching and tempering. Since both grades are commonly classified within the AISI 420 family, they are sometimes mistaken for the same material during material selection or quo