The NK DH40 shipbuilding steel plates have yield strength of 56,500 psi (390 MPa), and ultimate tensile strength of 74,000 - 94,500 psi (510-650 MPa). Higher-strength NK shipbuilding steel comes in 12 grades of 3 strengths, NK DH40 shipbuilding steel plate is one of the grades.
NK DH40 shipbuilding steel plates are mainly used for making the offshore oil drilling platform, the hull of ship building and ship repairing, the platform pipe joints and other components.
|
Grade |
C % |
Si % |
Mn % |
P % |
S % |
V % |
AL % |
Cr % |
|
NK Grade DH40
|
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 |
|
|
|
|
Grade |
Thickness(mm) |
MinYield(Mpa) |
Tensile(Mpa) |
Elongation (%) |
Min Impact Energy |
|
|
NK Grade DH40 |
8mm-50mm |
Min 390Mpa |
510-650Mpa |
20% |
-20 |
34J |
|
51mm-70mm |
Min390Mpa |
510-650Mpa |
20% |
-20 |
41J |
|
|
71mm-100mm |
Min 390Mpa |
510-650Mpa |
20% |
-20 |
50J |
|
|
The min impact energy is longitudinal energy |
||||||
| Thickness |
3-150mm |
|
Width |
1220-4200mm |
|
Length |
5000-18000mm |
Notes: coil thickness ≤ 25mm
All the NK DH40 shipbuilding steel plate offered by Katalor Industry can be certificated by Nippon Kaiji Kyokai (NK).katalor is one of the best NK DH40 shipbuilding steel plate suppliers.any question of NK DH40 shipbuilding steel plate can be send to our email:[email protected] or contact our servicer online.
