Common Materials
Carbon
Units
typical
ksi
ksi
typical
A366
Commercial Quality CR Sheets
C
  
.15 max
Mn
  
.60 max
P
  
.030 max
S
  
.035 max
38-50
25-35
RB40-RB60
A653
Galvanized Sheets
C
  
.15 max
Mn
  
.60 max
P
  
.035 max
S
  
.04 max
Comm
  
45-57
Draw
  
42-50
Comm
  
35-49
Draw
  
25-38
Comm
  
RB50-RB65
Draw
  
RB45-RB58