steel
News
You are here: Home > News

The first weapon to conquer the sea---steel

From ancient times to the present, mankind's determination to conquer the sea has never wavered, and it is reflected in practical actions, which is the continuous exploration and expansion of marine resources.
The opening of new shipping routes, the exploration of the Maritime Silk Road, etc.
The sea means trade, minerals, and technology.
The first weapon to conquer the sea is steel.

 

As a key structural material for offshore engineering equipment, steel is widely used in drilling platforms, production platforms and submarine pipelines. Due to the long service time and the long-term resistance to harsh wind and wave conditions, the cost of underwater repair and maintenance is extremely high. Therefore, the steel plates used must have high strength, high toughness, easy weldability, good corrosion resistance and large thickness.
BBN A131 DH36 steel plates have been approved by international classification societies,such as ABS, LR, GL, CCS, NK, DNV, BV, RINA, KR, RMRS. That means we can directly provide our end users steel plates under ABS A131 Grade DH36, BV A131 Grade DH36, LR A131 Grade DH36.
ASTM A131 Grade DH36 marine steel plate chemical composition:


C %

Si %

Mn %

P %

S %

Al(acid soluble),min%

Cb

V

Ti

Cu

Cr

Ni

Mo

N

0.18

0.10-0.50

0.90-1.60

0.035

0.035

0.015

0.02-0.05

0.05-0.10

0.02

0.35

0.20

0.40

0.08

...

ASTM A131 Grade DH36 marine steel plate mechanical property:


Yield Strength (Mpa)

Tensile Strength
(MPa)

Elongation in8 in.[200mm]
(%)

Elongation in8 in.[200mm]
(%)

Impact Energy
(J)

Test Temperature

≥355

490-620

≥19

≥22

34

-20