Maraging steel are traditionally carbon free iron-nickel alloys with additions of cobalt, molybdenum, titanium and aluminium. The term maraging is derived from the strengthening mechanism, which is transforming the alloy to martensite with subsequent age hardening
At Ovako we have combined three hardening mechanisms in our Hybrid Steel. Carbon in solid solution as in engineering steels, secondary carbide precipitation as in tool steel and intermetallic precipitation as in maraging steel. The result is a unique family of steel grades and sets of properties, but places hybrid steels closest to maraging steels.
Hybrid Steel 50, 55 and 60 are the first three commercially available grades in the growing Hybrid Steel family. The former two are designed to 50 and 55 HRC hardness, which provides an array of engineering steel capabilities. The latter is designed to 60 HRC hardness and is a unique grade of bearing steel for applications where added performance is needed. All three are produced with largescale automated ingot cast processes.
|
EN-standard |
Ovako |
Typical analysis |
||||||
|
|
|
C |
Si |
Mn |
Cr |
Mo |
Ni |
Other |
|
X20NiCrAlMoV6-5-2-1* |
0.08 |
0.1 |
0.3 |
5.0 |
0.7 |
5.0 |
Al |
|
|
X20NiCrAlMoV6-5-2-1* |
0.18 |
0.1 |
0.3 |
5.0 |
0.7 |
6.0 |
Al, V |
|
|
X20NiCrAlMoV6-5-2-1* |
0.28 |
0.1 |
0.3 |
5.0 |
0.7 |
6.0 |
Al, V |
|
EN-standard designation followed by “*” is not an official EN standard grade but named according to the rules in EN 10027.
We made it! But we are still not satisfied
What a journey! It took years of hard work to make our steelmaking operations more sustainable. In 2022, we went carbon neutral in all operations. But we´re still not satisfied - our journey towards steel production without CO2 emissions continues.
Read more about our path to carbon neutrality
