NCAV – Steels for carburizing
NC40SW – Through hardening steels
NC310YW – Through hardening steels
ML18PQ – Maraging steels
MARVAL18 – Maraging steels
GKP – Steels for nitriding
GKH – Steels for nitriding
GK3 – Steels for nitriding
GH4 – Through hardening steels
FND – Steels for carburizing