Based on the use of B420C or S420 steel grades specified in the TBDY Article 188.8.131.52b, you can select the naming for B420C or S420 from the Analysis Settings/Other tab to be shown in drawing letterheads and reports.
Open the Analysis Settings dialog.
Click on the other tab.
Choose from the static material naming section.
Analyze the project.
The selection you made on the letterheads and reports will appear when you draw.