Steel Grades

Through-hardening steel contains typically 1% carbon and alloying elements for hardenability, exhibiting very high strength but low ductility. Used with martensitic or bainitic hardening.

Steels for carburizing and case hardening typically have a relatively low carbon level, 0.10-0.25% C, and are used when there is a demand for varying properties, such as for components in transmissions.

General engineering and structural steel is used for producing various construction or machine elements, alloyed either only with carbon and manganese, or where also micro alloying is added.

Steels for quenching and tempering have a carbon level of 0.25-0.60% and can be both unalloyed and low-alloyed. Alloyed grades also contain chromium, nickel and molybdenum.

Spring steel is used in the manufacture of springs for automotive and industrial suspension, generally using low-alloy manganese, medium/high-carbon steel with a very high yield strength.

Boron is a small element cost-effectively added to improve hardenability and increase strength, mostly for lower and medium carbon steels with less than 0.40% carbon.

Nitriding steel grades contain strong nitride formers such as molybdenum, vanadium, aluminum or chromium. Ovako’s family of Hybrid Steel can very favorably be used for nitriding.

Maraging steel is traditionally very costly and metallurgically advanced, strengthened by martensite and intermetallic precipitation. Ovako is reinventing this category of steel with its Hybrid Steel family.