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LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS, DH32 Shipbuilding steel plate
LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS, DH32 Shipbuilding steel plate
Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS,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.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.What's more, DH32 shipbuilding steel plate can be used in manufacturing the ship's hull structure whose weight is below 10000 tons.
DH32 Shipbuilding steel plate specification:
Thickness: 4mm to 260mm,
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.DH32 shipbuilding steel plate Chemical Composition %
GradeC max
Si max
Mn
P max
S max
Als min
Ti max
Cu max
Cr
maxNi
maxMo
maxDH32
0.18
0.50
0.90-1.60
0.035
0.035
0.015
0.02
0.35
0.20
0.40
0.08
Note: Generally speaking CE will be ≤ 0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.36% (thickness ≤ 50mm),≤0.38%( when the thickness >50-100). Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
DH32 shipbuilding steel plate MechanicaL Property
GradeRm
(MPa)Re(MPa) min
A% min
Akv/J min
DH32
440-570
315
22
E.T °C
Thickness (mm)
-20
≤ 50
>50-70
>70-100
L
C
L
C
L
C
31
22
38
26
46
31
Note: In the list , Rm: .tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.
DH32 shipbuilding steel plate Condition Of Delivery
GradeFine grains elements
category
The thickness of steel
≤ 12
>12.5-20
>20-25
>25-35
>35-50
>50-100
DH32
Nb+V or V
Plate/
sheetA(50)
N(50),CR(50),TM(50)
N(50),CR(25),TM(50)
Profile steel
N(50),CR(50),TM(50),AR*(25)
-
Al or Al+Ti
Plate/
sheetA(50)
AR*(25)
-
N(50),CR(50),TM(50)
N(50),CR(25),TM(50)
Profile steel
A(50)
N(50),CR(50),TM(50),AR*(25)
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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.DH32 shipbuilding steel plate Contrast in the different standard
ASTM A131MTOCT 5521
JIS G3106
BS LR
GB712
DH32
D32
SM490B
SM490CDH32
D32
DH32 shipbuilding steel plate Available Specification
varietyThickness (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 DH32 shipbuilding 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 DH32 shipbuilding 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