Hull structural steel can be divided into ordinary strength steel, higher strength steel and extra high tensile strength steel. The ordinary strength hull structural steel of China Classification Society has four quality grades: Grades A, B, D and E (ie CCS A, CCS B, CCS C, CCS D). The higher strength steel of China Classification Society standard is three Strength levels (32 grades, 36 grades, 40 grades), four quality classes (Grades AH, DH, EH, FH).
CCS AH420 |
CCS DH420 |
CCS EH420 |
CCS FH420 |
CCS AH460 |
CCS DH460 |
CCS EH460 |
CCS FH460 |
CCS AH500 |
CCS DH500 |
CCS EH500 |
CCS FH500 |
CCS AH550 |
CCS DH550 |
CCS EH550 |
CCS FH550 |
CCS AH620 |
CCS DH620 |
CCS EH620 |
CCS FH620 |
CCS AH690 |
CCS DH690 |
CCS EH690 |
CCS FH690 |
Grade |
C max |
Si max |
Mn min |
P max |
S max |
C+Mn/6 |
CCS A |
0.21 |
0.50 |
2.5xC |
0.035 |
0.035 |
0.40 |
Grade |
Yield Strength (Mpa) |
Tensile Strength |
Elongation in 8 in. [200mm] (%) |
Elongation in 2 in. [50mm] (%) |
Test Temperature(°C) |
CCS A |
235 |
400-520 |
21 |
24 |
20 |
SHANGHAI KATALOR ENTERPRISES CO., LTD is a supplier and exporter CCS A shipbuilding steel plates, CCS grade A marine steel and CCS/A hull structure steel in China. If you looking for CCS A shipbuilding steel plates, welcome to contact us.