HP series shipbuilding steel bulb flat bar is a kind of special section steel, which is composed of flat web and spherical ball head. It is an asymmetric section steel. Because of its special spherical design, HP series shipbuilding steel bulb flat bar can effectively avoid stress concentration, so it is mainly used as hull stiffener. The wide use of HP series shipbuilding steel bulb flat bar has greatly improved the carrying capacity and safe navigation capacity of ships.
HP series shipbuilding steel bulb flat bar includes general strength shipbuilding steel bulb flat bar and high strength shipbuilding steel bulb flat bar. The yield strength of general strength shipbuilding steel bulb flat bar is greater than 235 MPa; and the yield strength of high strength shipbuilding steel bulb flat bar is greater than 315 MPa.
Grades of HP series shipbuilding steel bulb flat bar:
| Standard |
Steel Grade |
| ASTM A131 |
A |
B |
D |
E |
| AH32 |
DH32 |
EH32 |
FH32 |
| AH36 |
DH36 |
EH36 |
FH36 |
| AH40 |
DH40 |
EH40 |
FH40 |
Certificates: ABS, LR, DNV GL, CCS, RINA, BV, NK, KR, RMRS
HP series shipbuilding steel bulb flat bar is a special structural steel for ships and warships. In ships and warships, HP series shipbuilding steel bulb flat bar is mainly used as stiffener and anti deflection material, such as truss, rib and other bone materials. They are connected with hull steel plates and combined into various forms of plate frame structures.
