Prepainted Galvanized Steel Coil 2019
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Prepainted Galvanized Steel Coil 2019

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Product Description

Product Detail    Prepainted Galvanized Steel Coil 2019

Material: SGCC, SGCD, SGC340, SGC570, ASTM A653 CS Type, ASTM A653 SS550, DX51D, DX52D, DX53D, etc.

Standard: EN10142, EN10147, EN10292, EN10214, EN10215, JIS G3302, JIS G3321, JIS G 3317, ASTM A653, ASTM A792, ASTM A875

Thickness:0.12-2mm


Hot Products:

EN: DX51D+Z/ZF/ZA/AZ, DX52D+Z/ZF/ZA/AZ, DX53D+Z/ZF/ZA/AZ, S250GD+Z/ZF/AZ/ZA, S280GD+Z/ZF/ZA/AZ, S320GD+Z/ZF/ZA/AZ, S350GD+Z/ZF/ZA/AZ, S550GD+Z/ZF/ZA/AZ.  

ASTM:  A653 CS, SS340, SS550.

JIS: SGCC, SGCD1, SGC340, SGC570.


Galvanized steel

Galvanized steel is the steel plate surface coated with a layer of zinc to prevent the steel plate surface from corrosion to extend its service life.

Surface treatment of hot-dip galvanized steel we can offer: chromating, oiled, phosphating, etc.

Zinc-coat thickness (g/m2): 40, 60, 80, 90,100, 120, 140,180, 200, 250, 275 and so on.


Specification:

Item

Type

Coating types

Zinc coat(Z)

Zinc-iron alloy coating(ZF)

Surface structure

Zinc coat

Normal spangle

Minimized spangle

Spangle free/Zero spangle

Zinc-iron alloy coating

Regular spangle

Prepainted Galvanized Steel

Prepainted steel is steel products that take cold rolled steel or galvanized steel as steel substrate, go through the surface pretreatment (degreasing, cleaning, chemical conversion treatment), then was continuously coated with paint (roller coating method), finally go throught the process of  baking and cooling.

Specification:

Item

Type

Steel substrate

hot-dip zinc-coated (Z)

hot-dip zinc-iron alloy coated steel (ZF)

hot-dip zinc-aluminum alloy coated steel (ZA)

hot-dip aluminum-zinc alloy coated steel (AZ)

Coating surface

coated

embossed

printed

Painting

polyester(PE)

silicon modified polyester (SMP)

high-durability polyester (HDP)

polyvinylidene fluoride (PVDF)

Painting structure

top side painted twice, bottom side painted once (2/1)

both top side and bottom side painted twice (2/2)

Surface structure of steel substrate

Minimized spangle

Spangle- free/Zero spangle


Selection of Prepainted Steel

Type and coating weight of steel substrate:

The type and coating weight of steel substrate are the most important factors that influence the corrosion resistance of prepainted steel coil.

The selection should determined in accordance with the usage, envrionmental corrosion, service life and durability. For example, in the severe industrial or humid coastal area, the zinc coating of prepainted steel should be more than 180g/m2.

However, when used for decoration or household appliances, the prepainted steel with normal zinc coated steel substrate can be adopted.

Types of painting:

Painting is the key factor that influences the usage of colour-coated/prepainted steel.

For example, in the humid coastal area, the higher durability painting was suggested such as PVDF, HDP.

Grades and usage of base metal

Grades and usage of colour-coated plate/coil

Grades, standard, type of base plate

Grade Usage Grade Standard Type
TSGCC,TSGCC-GC In general use SGCC JIS G3302 Hot galvanized steel plate/coil
TDX51D+Z,TDX51D+Z-GC DX51D+Z EN 10327
TSGCD1 use for Stamping SGCD1 JIS G3302
TDX52D+Z DX52D+Z EN 10327
TDX53D+Z,TDX54D+Z use for Deep drawing DX53D+ZDX54D+Z EN10327
TSGC340,TSGC340-GC use for Structure SGC340 JIS G3302
TSGC400,TSGC400-GC SGC400
TSGC440,TSGC440-GC SGC440
TSGC490,TSGC490-GC SGC490
TSGC570,TSGC570-GC SGC570
TS220GD+Z,TS220GD+Z-GC use for Structure S220GD+Z EN 10326
TS250GD+Z,TS250GD+Z-GC S250GD+Z
TS280GD+Z,TS280GD+Z-GC S280GD+Z
TS320GD+Z,TS320GD+Z-GC S320GD+Z
TS350GD+Z,TS350GD+Z-GC S350GD+Z
TS550GD+Z,TS550GD+Z-GC S550GD+Z
TSPCC In general use SPCC JIS G3141 Cold-rolled steel plate/coil
TDC01 DC01 EN 10130
TSPCD use for Stamping SPCD JIS G3141
TDC03 DC03 EN 10130
TSPCE use for Deep drawing SPCE JIS G3141
TDC04 DC04 EN 10130

Equivalent Grades List of Hot-Dip Galvanized Steel

EN

ASTM A653M-04a

JIS

DX51D+Z

CS

SGCC

DX52D+Z

FS

SGCD1

DX53D+Z

DDS

SGCD2

DX54D+Z

-

SGCD3

S250GD+Z

SS255

SGC340

S280GD+Z

SS275

-

S320GD+Z

-

-

S350GD+Z

SS340

SGC440

S550GD+Z

SS550

SGC570



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Prepainted Galvanized Steel Coil 2019

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