CCS A steel plate and CCS B steel plate are both ship plates, i.e. structural steel for general strength hull. The structural steel for hull is divided into four grades according to the quality: A, B, C and D. Among them, CCS A steel plate and CCS B steel plate belong to general strength plate, but the Mn content in the chemical composition is quite different, but the yield and tensile strength of CCS A steel plate and CCS B steel plate are the same, the difference is the experimental temperature of impact energy, CCS A steel plate is 20 degrees, and CCS B steel plate is 0 degrees.
The chemical composition of CCS A steel plate and CCS B steel plate
| Grade |
C |
Si |
Mn |
P |
S |
|
CCS A |
0.21 |
0.50 |
2.5×C |
0.035 |
0.035 |
|
CCS B |
0.21 |
0.35 |
0.80 |
0.035 |
0.035 |
In fact, both CCS A steel plate and CCS B steel plate belong to marine steel plate, so the difference between them is not obvious. The chemical composition of CCS A steel plate is a little different from that of CCS B steel plate. But generally speaking, CCS A steel plate and CCS B steel plate are common marine steel plates.
