Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS,ASTM A131 DH40 steel plate is a kind of steel for shipbuilding and platform.Shipbuilding steel plate DH40 is the high tensile strength steel. As a professional shipbuilding steel plate exporter, Bebon international can supply steel plate DH40. ASTM A 131 DH40 shipbuilding steel plates can be used in the manufacture of the ship s hull structure whose weight is below 10000 tons.
DH40 Shipbuilding Steel Specification:
Thickness: 4 mm to 260mm,
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.
DH40 steel plate Chemical Composition %
Grade
|
C max
|
Si max
|
Mn
|
P max
|
S max
|
Als min
|
Ti max
|
Cu max
|
Cr
max
|
Ni
max
|
Mo
max
|
Nb
|
V
|
|
DH40
|
0.18
|
0.50
|
0.90-1.60
|
0.035
|
0.035
|
0.015
|
0.02
|
0.35
|
0.20
|
0.40
|
0.08
|
0.02-0.05
|
0.05-0.10
|
Note: Generally speaking CE will be ≤ 0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.40% (thickness ≤ 50mm). Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
DH40 steel plate Mechanical Property
Grade
|
Rm
(MPa)
|
Re(MPa) min
|
A% min
|
Akv/J min
|
|
DH40
|
510-660
|
390
|
20
|
E.T °C
|
Thickness (mm)
|
|
0
|
≤ 50
|
>50-70
|
>70-100
|
|
L
|
C
|
L
|
C
|
L
|
C
|
|
41
|
27
|
-
|
Note: In the list , Rm: tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.
DH40 steel plate Condition Of Delivery
Grade
|
Fine grains elements
|
category
|
The thickness of steel
|
|
≤ 12
|
>12.5-20
|
>20-25
|
>25-35
|
>35-50
|
>50-100
|
|
DH40
|
any
|
Plate/
sheet
|
N(50),CR(50),TM(50)
|
-
|
|
Profile steel
|
Note: 1. DH40 Shipbuilding steel 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.
DH40 steel plate Available Specification
variety
|
Thickness (mm)
|
Width (mm)
|
Longth/ inner diameter (mm)
|
|
Shipbuilidng plate
|
cutting edges
|
6~200
|
1500~3000
|
3000~15000
|
|
non- cutting edges
|
1300~3000
|
|
Shipbuilidng coil
|
cutting edges
|
1.2~19
|
1500~2000
|
760+20~760-70
|
|
non-cutting edges
|
1510~2010
|
DH40 steel plate theoretical weight
Thickness (mm)
|
theoretical weight
|
Thickness (mm)
|
theoretical weight
|
|
Kg/ft2
|
Kg/m2
|
Kg/ ft2
|
Kg/m2
|
|
6
|
4.376
|
47.10
|
25
|
18.962
|
196.25
|
|
7
|
5.105
|
54.95
|
26
|
20.420
|
204.10
|
|
8
|
5.834
|
62.80
|
28
|
21.879
|
219.80
|
|
10
|
7.293
|
78.50
|
30
|
23.337
|
235.50
|
|
11
|
8.751
|
86.35
|
32
|
25.525
|
251.20
|
|
12
|
10.21
|
94.20
|
34
|
26.254
|
266.90
|
|
14
|
10.939
|
109.90
|
35
|
27.713
|
274.75
|
|
16
|
11.669
|
125.60
|
40
|
29.172
|
314.00
|
|
18
|
13.127
|
141.30
|
45
|
32.818
|
353.25
|
|
20
|
14.586
|
157.00
|
48
|
35.006
|
376.80
|
|
22
|
16.044
|
172.70
|
50
|
36.464
|
392.50
|
|
24
|
18.232
|
188.40
|
|
|
|
DH40 steel plate dimensional deviation
nominal thickness（mm）
|
The thickness deviation with following width (mm)
|
|
≤1200
|
>1200~1500
|
>1500~1800
|
>1800
|
|
>6.0~8.0
|
±0.29
|
±0.30
|
±0.31
|
±0.35
|
|
>8.0~10.0
|
±0.32
|
±0.33
|
±0.34
|
±0.35
|
|
>10.0~12.0
|
±0.35
|
±0.36
|
±0.37
|
±0.43
|
|
nominal thickness（mm）
|
minus deviation (mm)
|
The thickness deviation with following width (mm)
|
|
> 1000 ~1200
|
> 1200 ~1500
|
> 1500 ~1700
|
> 1700 ~1800
|
> 1800 ~2000
|
> 2000 ~2300
|
> 2300 ~2500
|
> 2500 ~2600
|
2600 ~2800
|
> 2800 ~3000
|
|
>12~25
|
-0.8
|
+0.2
|
+0.2
|
+0.3
|
+0.4
|
+0.6
|
+0.8
|
+0.8
|
+1.0
|
+1.1
|
+1.2
|
|
>25~30
|
-0.9
|
+0.2
|
+0.2
|
+0.3
|
+0.4
|
+0.6
|
+0.8
|
+0.9
|
+1.0
|
+1.1
|
+1.2
|
|
>30~34
|
-1.0
|
+0.2
|
+0.3
|
+0.3
|
+0.4
|
+0.6
|
+0.8
|
+0.9
|
+1.0
|
+1.2
|
+1.3
|
|
>34~40
|
-1.1
|
+0.3
|
+0.4
|
+0.5
|
+0.6
|
+0.7
|
+0.9
|
+1.0
|
+1.1
|
+1.3
|
+1.4
|
|
>40~45
|
-1.2
|
+0.4
|
+0.5
|
+0.6
|
+0.7
|
+0.8
|
+1.0
|
+1.1
|
+1.2
|
+1.4
|
+1.5
|