NSSC 550

NSSC 550 is a martensitic grade with remarkably improved quench hardening.

1. Superior to SUS 304 in corrosion resistance by appropriate addition of Cr and Mo, as well as by control of trace elements.
2. Superior to SUS 304 in its performance of wire drawings as well as cold-heading.
3. Applications: Self-tapping screws, High-strength nails, Various kinds of pins, High-strength chains and other applications requiring high hardness and high rust resistance