25CrMo4+QT steel (also designated as 1.7218+QT / ČSN 15 130+QT) is a highly versatile material with excellent strength, toughness, and durability. Thanks to these properties, it is used across many industrial sectors—especially for manufacturing components that must withstand high loads and demanding operating conditions.
If you are looking for a reliable material for more demanding projects, 25CrMo4+QT is a great choice. Its chemical composition and properties help achieve stable, high-quality results.
Chemical composition
The chemical composition of this steel is designed to provide an optimal combination of mechanical properties and resistance.
Below is the typical chemical composition of 25CrMo4+QT (1.7218+QT, ČSN 15 130+QT):
Carbon (C): 0.22 – 0.29%
Silicon (Si): 0.10 – 0.40%
Manganese (Mn): 0.60 – 0.90%
Chromium (Cr): 0.90 – 1.20%
Molybdenum (Mo): 0.15 – 0.30%
Phosphorus (P): max. 0.035%
Sulfur (S): max. 0.035%
