1.0044 | S275JR
| Numeric designation | 1.0044 |
|---|---|
| Chemical designation | S275JR |
| Etching | 4% Nital |
S275JR is a frequently used unalloyed structural steel. ‘S275’ stands for a minimum yield strength of 275 MPa (depending on thickness), “JR” for an impact energy at 20 °C of at least 27 joules. Predominantly ferritic microstructure with a low pearlite content.
The hardness is 160 HBW2.5/187.5.
