DH32 shipbuilding steel plate
ASTM A131 DH32 shipbuilding steel is not only the high tensile strength steel but also is the Hull structural steel. DH32 shipbuilding steel has good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and good welding properties.In usual if DH32 steel plate thickness above 40mm, mill request the normalized in hot rolled plate, if above 150mm thickness our mill also could use the electroslag remelting technical to do for our customers.Shipbuilding steel grade DH32 is used for shipbuilding and oil platform purpose and they are approved by ABS,DNV,GL,BV,LR,NK,RINA and other classification societies.
|
Grade |
C % |
Si % |
Mn % |
P % |
S % |
V % |
AL % |
Cr % |
|
0.180 |
0.1-0.5 |
0.90-1.6 |
0.035 |
0.035 |
0.05-0.10 |
0.015 |
0.200 |
|
|
Cu % |
Mo % |
Nb % |
Ni % |
Ti % |
|
|
|
|
|
0.350 |
0.080 |
0.02-0.05 |
0.400 |
0.020 |
|
|
|
The mechanical properties at ambient temperature for quenched and tempered steel plate
Grade |
Thickness(mm) |
Min Yield (Mpa) |
Tensile(MPa) |
Elongation(%) |
Min Impact Energy |
|
|
DH32 |
8mm-50mm |
Min 315Mpa |
440-590Mpa |
22% |
-20 |
34J |
|
51mm-70mm |
Min 315Mpa |
440-590Mpa |
22% |
-20 |
38J |
|
|
71mm-100mm |
Min 315Mpa |
440-590Mpa |
22% |
-20 |
46J |
|
|
The min impact energy is longitudinal energy |
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