1.0986 | S550 +MC
| Numeric designation | 1.0986 |
|---|---|
| Chemical designation | S550 |
| State | +MC |
| Etching | 2% Nital |
Thermomechanically rolled, higher strength quality steel with max. 0.12 % C. The microstructure is very fine-grained (< 10 µm) and consists mainly of ferrite with approx. 1-2% pearlite. The minimum yield strength is 550 MPa with a minimum elongation at fracture of 12%. The average hardness is 228 HV0.5.
