Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mechanical properties of the substrates used. Steel hardness (H) through the Rockwell test, the ultimate tensile strength (σr), and the thickness of the substrate (h).
| Property | DIN 40CrMnMo7 | DIN X155CrVMo12-1 |
|---|---|---|
| H/HRC | 51 | 64 |
| σr/MPa | ≈1740 | >2180 |
| h/mm | 12.7 | 9 |
