• MARINE STEEL 0143 MARINE STEEL 0143 MARINE STEEL 0143
    HVG MARINE STEEL 0143

    HVG MARINE STEEL 0143: AB DQ70 Shipbuilding Steel Plate

    The shipbuilding steel plate is ABS grade DQ70. Its steel grade is equivalent with CCSDH690, BVDH690, NV D690, GL-D690, KRDH70, LRDH70, KD70, and RINA-D690. The AB/DQ70 is a super high strength steel grade. It is used in offshore drilling platforms, shipping engineering and shipbuilding projects. We are able to provide normal strength, high strength, and super high strength shipbuilding steel plates. Customization of plate size is available. We are able to provide relevant certificates, such as CCS, ABS, LR, BV, GL,KR,NK,RINA, DNV… If you are interested in our products, please feel free to contact us!

    Why choose us?

    • High quality products, certified by the classification societies
    • An ample supply, in partnership with strong factories
    • Professional service, rich experience in import & export trade
    • Fast delivery, efficient logistics distribution system
    • Reasonable price, high cost performance

    Technical specification:

    • Specifications of AB DQ70 Shipbuilding Steel Plate
    Project Data
    Steel Grade AB/DQ70
    Chemical Composition C % ≦0.20
    Si % ≦0.55
    Mn % ≦1.70
    P % ≦0.025
    S % ≦0.025
    N % ≦0.020
    Mechanical Property Upper Yield strength (ReH/MPa) ≧690
    Tensile Strength (Rm/MPa) 770~940
    Elongation after Fracture

    (A/%)

    ≧14
    Charpy V-Notch Impact Test Longitudinal (KV2/J) ≧69
    Transverse (KV2/J) ≧46
    Test Temperature (℃) -20
    Heat Treatment TM/QT/TM+T
    Plate Size Thickness (mm) 6~350
    Width (mm) 900~4850
    Length (mm) 3000~25000
    Notes It is available to customize the size of steel plate.