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G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g

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    Buy cheap G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g from wholesalers
     
    Buy cheap G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g from wholesalers
    • Buy cheap G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g from wholesalers
    • Buy cheap G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g from wholesalers
    • Buy cheap G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g from wholesalers

    G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g

    Ask Lasest Price
    Price : 850 USD/MT
    Payment Terms : L/C, T/T
    Supply Ability : 700 MT/DAY
    Delivery Time : 30-40 DAYS
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    G550/G450 Galvanized Steel Coil Sheet GI Zero Spangle G60 Z180g

    G550/G450 Structure Steel Grade G60=Z180g Galvanised Steel with Zero spangle used for Light Steel Vill

    Zero spangle Galvanized Steel Sheet in Coils Introductions

    Zero Spangle Galvanized Steel : In hot dip galvanising, only a certain amount of aluminium is added to the zinc solution and no lead-free, antimony or tin is added to produce a non-bright product.

    Hot-dip galvanised steel coil (GI) is made by passing a fully hardened steel sheet, which has undergone a pickling and rolling process, through a zinc pot, thereby coating the surface with a zinc film. Due to the properties of zinc, it offers excellent corrosion resistance, paintability and workability. Typically, the process and specifications for hot-dip galvanised steel sheet and galvanised steel coil are essentially the same.

    Galvanised steel coil applications:

    Galvanised steel coils are used in a wide range of applications and have the advantage of a long corrosion protection period. It is mainly used as a building and substrate for household appliances, office panels, roof panels, automotive panels, and pre-painted steel coils.

    Automotive Steel Sheet

    To use automotive steel plates must first be stamped and formed, where the plates are stamped into parts of the desired shape and size.

    Spot welding, as an important welding method for joining thin plates, has a wide range of applications in manufacturing, especially in the automotive industry.

    Galvanised Roof Sheet

    The performance requirements for galvanised roof sheets mainly include the mechanical properties of the material (tensile strength, yield strength, elongation), coating properties (coating type, coating thickness and coating adhesion).

    Household Office Galvanised Sheet

    Including air conditioners, washing machines, refrigerators, photocopiers, etc. Household galvanised sheet is mainly used for general forming applications and stamping.

    PrePainted Steel Base Metal Substrates

    Another use for galvanised steel coils is as a substrate for pre-painted steel coils. Pre-painted steel coils are more durable than galvanised coils as they have a polyethylene coating.

    The annual design capacity of galvanised sheet in the first phase 1450mm series production line is 300,000 tonnes. The project was constructed with the participation of China Steel Research Institute and other leading construction and design units in China. In view of the demand for plates for the household appliance industry, it has specially developed the grades for use in household appliance plates, and on the basis of the original production, through the adjustment of the composition of zinc liquid, the parameters of the air knife, the parameters of the finishing machine, as well as the improvement of the three-roll and six-arm equipment, it has made the quality of non-blooming galvanised plates to meet the demand for household appliance plates in the market.

    The zinc layer of hot-dip galvanised steel sheet without zinc flower is even and firm, which is conducive to coating, strong corrosion resistance, and a smoother and more beautiful surface.

    There are zinc flower steel plate coating prone to intergranular corrosion, its corrosion resistance is not as good as the zinc flower steel plate. Zinc flowers caused by the surface of the steel plate unevenness in the paint is still clearly visible, the addition of lead and antimony in the zinc solution makes the zinc layer of heavy metal content is high, not conducive to environmental protection.

    Index

    Regular spangle

    Galvanized Steel Coil/Sheets

    Zero spangle

    Galvanized Steel Coil/Sheets

    Thickness

    0.13-2.50mm

    0.20-2.0mm

    Width

    600~1500mm

    600~1500mm

    Zinc Coating

    Z30~Z400 g/㎡

    Z30~Z275 g/㎡

    Surface Treatment

    Passivated / Chromated 6+,3+, Free;

    Oiled

    Skin passed, Chromated 6+, 3+, Free

    Oiled, AFP (anti-finger print)

    Steel Grade

    DX51D/52D/53D/

    S250GD/280GD/350GD/550GD

    ASTM A653M, SS255-SS550

    JIS G3302-SGCC, SGCH (Full hard-G550)

    DX51D/52D/53D/

    S250GD/280GD/350GD/550GD

    ASTM A653M, SS255-SS550

    JIS G3302-SGCC, SGCH (Full hard-G550)

    Coil I.D.

    508 / 610 mm

    508 / 610 mm

    Coil weight

    2 ~ 20 tons

    2 ~ 20 tons

    Packaging

    Standard export packing ( Eye to Side)

    Vertical Packing ( Eye to Sky) with wooden pallet

    Horizontal Packing ( Eye to Side) with wooden pallet

    MOQ.

    16 tons

    16 tons

    Loading port

    Tianjin / Qingdao / Rizhao port

    Usage

    Purlins, light steel frame, ventilation duct, downpipe, round pipe, square pipe, roof panel, corrugated sheets.

    Coated steel coil production, household appliances ( pre-coated metal PCM)

    Roof panel, corrugated sheets

    Usage

    Steel Grade

    Yield Strength(MPa)

    Tensile Strength(MPa)

    Elongation at Brake A80mm

    %

    Elongation at BrakeA50mm

    %

    Structural usage

    S250GD+Z

    250

    330

    19

    /

    S300GD+Z

    300

    380

    18

    /

    S350GD+Z

    350

    420

    16

    /

    S450GD+Z

    450

    480

    15

    /

    S550GD+Z

    550

    550

    /

    2


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