• 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 %


    Grade

    C max

    Si max

    Mn

    P max

    S max

    Als min

    Ti max

    Cu max

    Cr
    max

    Ni
    max

    Mo
    max

    DH32

    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


    Grade

    Rm
    (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


    Grade

    Fine 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/
    sheet

    A(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/
    sheet

    A(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)

    -

    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 A131M

    TOCT 5521

    JIS G3106

    BS LR

    GB712

    DH32

    D32

    SM490B
    SM490C

    DH32

    D32


    DH32 shipbuilding 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

    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