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DNV E

DNV E  DNV E  DNV E

shipbuilding  steel  plate  and  sheet

DNV E  Steel Description:

The steel for shipbuilding and oil platform---E, is the common tensile strength steel.
DNV E steel is the Hull structural steel,with it's good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties.

DNV E Steel Application :

DNV E steel can be used in the manufacture of the ship's hull structure whose weight is below 10000 tons,and usually do navigation around coastal and river area.

DNV E Steel chemical composition by [%]:

Grade

C max

Si max

Mn

P max

S max

Als min

DNV E

0.18

0.35

 0.70-1.20

0.035

0.035

0.015

Note:

1.CE: C+1/6Mn ≤ 0.40%,Cu ≤ 0.35%,Ni ≤ 0.30

2.Some residual elements ,like Cu and Sn ,can be controlled,because they are harmful to the property .

DNV E Steel  Mechanical properties:

Grade

Rm (MPa)

Re(MPa) min

A% min

Akv/J min

DNV E

400-520

235

22

E.T °C

Thickness (mm)

-40

≤ 50

>50-70

>70-100

L

C

L

C

L

C

27

20

34

24

41

27

Note: In the list , Rm: tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.

DNV E steel is a low-carbon steel with excellent welding performance. A variety of welding method can be used for welding.
DNV  E Steel  Delivery state:

Grade

category

The thickness of steel

≤ 12

>12.5-25

>25-35

>35-50

>50-100

DNV E

Plate/sheet

N,TM

Profile steel

N(25),TM(25),AR*(15),CR*(15)

-

Note:
1. delivery condition: A =Any ; N=Normalized ; CR=Control Rolled ; TM=TMPC, Temperature - deformation control rolling; AR*= Can be hot rolled with the agreement of Classification Society ; CR*=Can be control rolled with the agreement of Classification Society .
2. The Figure in the ( ) means the sampling volume to do the impact test, the unit is Ton.(-) means without impact test.

Contrast in the different standard

ASTM A131M

TOCT 5521

JIS G3106

BS LR

GB712

E

E

SM400B SM400C

E

E

Shipbuilding steel,generally speaking,a hull structure steel , is to manufacture hull as the requirements of  register of shipping. Shipbuilding steel includes four grades,that is A,B,C,D. Grade A means impact test at 20°C; Grade B is impact test at 0°C; Grade C means impact test at -20°C; Grade D is impact test at -40°C. DNV E has little alloy elements and grain refinement elements added, so its weldability is good.

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