• LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS AH32 Shipbuilding steel plate
  • Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS,Ah32 steel plate is used for shipbuiling&platform.The shipbuilding steel plate grade AH32 is the high tensile strength steel. Ah32 shipbuilding steel  has good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties. ASTM A131 Ah32 steel plate  can be used in the manufacture of the ship s hull structure whose weight is more than 10000 tons.

    AH32 Shipbuilding steel plate specification:
    Thickness: 4mm to 260mm,
    Width: 1200mm to 4000mm
    Length: 3000mm to 18000mm.

    Ah32 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

    AH32

    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.

    Ah32 steel plate Mechanical Property


    Grade

    Rm
    (MPa)

    Re(MPa) min

    A% min

    Akv/J min

    AH32

    440-570

    315

    22

    E.T °C

    Thickness (mm)

    0

    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.

    Ah32 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

    AH32

    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.

    Contrast in the different standard


    ASTM A131M

    TOCT 5521

    JIS G3106

    BS LR

    GB712

    AH32

    A32

    SM490B
    SM490C

    AH32

    A32

    Ah32 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

    Ah32 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

    Ah32 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