EnglishEspañol
DNV Grade DH40 Marine steel,DNV Grade DH40 shipbuilding steel ,DNV DH40 steel plate
Source:Xin Steel Industry   Date:2012/07/26

DNV Grade DH40 marine steel,DNV Grade DH40 shipbuilding steel plate,DNV DH40 steel plate,DNV Grade DH40 ship plate,DNV Grade DH40 marine steel plate are mainly used to build vessels which are sailing in low temperature oceans.When rolling DNV Grade DH40, TMCP or Normalized shall be done for heat treatment,and low temperature impacting test have to be done under minus 20 centigree.DNV Grade DH40 shipbuilding steel plate owned the highest tensile strength within 510-650 Mpa,and the minimum yield point shall be 390 Mpa.


For improve the thickness-direct steel property for shipbuilding steel plate DNV Grade DH40,Z-test for DNV Grade DH40 is also necessary,our customers can choose three different classes,Z15,Z25 and Z35.In China stated owned steel mills,just Xinsteel can roll DNV Grade DH40 shipbuilding steel plate with thickness above 100 millmeters.We can roll this steel grade DNV Grade DH40 reach to 350 millimeters.

 

Chemical composition of Heat analysis for Shipbuilding steel plate DNV Grade DH40 (Max %):

C

Mn

Si

P

S

Al

(acid)

Nb

0.18

0.90-1.60

0.50

0.035

0.035

≥ 0.015

0.02-0.05

Ti

V

Ni

Cu

Cr

Mo

0.02

0.03--0.10

0.40

0.35

0.20

0.08

 

Mechanical properties for Shipbuilding steel plate DNV Grade DH40:

Yield strength (Mpa)

Tensile strength (Mpa)

Steel Mark

390

510-650

NV/DH40/D40