Galvanized Steel Coil
Galvanized steel coil is one of the hot-selling products of GNEE Steel. It is available in big, regular, small, and zero spangles. Compared to color steel coil, it is more affordable. Also, it has excellent corrosion resistance and durability. That's why it is extensively used in construction, automobile, furniture, home appliances, etc. Due to its wide applications and good machinability, it is also a great investment project. As a wholesale supplier, GNEE Steel has its own factory to meet bulk orders timely. Also, we will offer a direct-sale price to lower your cost. If you are interested, please contact us for details!
Specifications Table
|
Technical Standard |
EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653 |
|
Steel Grade |
Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440,SGH490,SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), |
|
Type |
Coil/Sheet/Plate/Strip |
|
Thickness |
0.12-6.00mm,or customer's requirement |
|
Width |
600mm-1500mm, according to customer's requirement |
|
Type of Coating |
Hot Dipped Galvanized Steel(HDGI) |
|
Zinc Coating |
30-275g/m2 |
|
Surface Treatment |
Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) |
|
Surface Structure |
Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS) |
|
Quality |
Approved by SGS,ISO |
|
ID |
508mm/610mm |
|
Coil Weight |
3-20 metric ton per coil |
|
Package |
Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by |
|
Export market |
Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc |
Galvanized steel coil, immersing the thin steel plate in the molten zinc bath, adhering a layer of zinc thin steelsheet on the surface.It is mainly produced by continuous galvanizing process,that is,the coiled steel plate iscontinuously immersed in the zinc-melted plating tank to make galvanized steel sheet; alloyed galvanized steelplate. This kind of steel plate is also made by hot dipped method, but itis heated to about 500 -C immediately afterexiting the tank to form an alloy film of zinc and iron. This galvanized coilhas good paint adhesion and weldability.
Coatings
The metal coated products are offered with Zinc (Z), Galfan zinc-aluminium (ZA), or Galvannealed zinc-iron alloy (ZF) coating. The cathodic corrosion protection of these metal coatings is in direct proportion to its thickness, i.e. a thick coating will provide better corrosion protection for the underlying steel than a thin coating. However, thin coatings are recommended for applications with high formability requirements.
Zinc
The Zinc (Z) coating has a composition consisting almost entirely of zinc (>99%) and is lead free, resulting in finely crystallized zinc spangle that meets high requirements for visual appearance. It is produced by hot-dip galvanizing process. Thanks to the good formability of lead-free coatings, the corrosion protection, for example, in areas which have been bent is good. The small spangle coating is designated by the letter M.
Galfan
Galfan (ZA) is a zinc-aluminium alloy coating with the eutectic composition approximately of 95% Zn and 5% Al. This coating has better anticorrosive and forming properties than normal zinc coatings. Galfan coating can be recognized by its bright metallic and mildly cellular-patterned surface. It is produced by hot-dip coating process.
Galvannealed
Galvannealed (ZF) is a zinc-iron alloy coating having an iron content of about 10%. This coating is produced by heat-treatment after continuous hot-dip coating process. ZF coated steels are excellent for resistance welding applications and are designed for use in high-quality painted products. Galvannealed coating can be recognized by its typically grayish, matte surface.
|
Coating designation |
Minimum total coating mass, both surfaces * |
Guidance value for coating thickness per surface |
|---|---|---|
|
Z100 |
100 |
7 |
|
Z140 |
140 |
10 |
|
Z180 |
180 |
13 |
|
Z200 |
200 |
14 |
|
Z225 |
225 |
16 |
|
Z275 |
275 |
20 |
|
Z350 |
350 |
25 |
|
Z450 |
450 |
32 |
|
Z600 |
600 |
42 |
|
ZA095 |
95 |
7 |
|
ZA130 |
130 |
10 |
|
ZA155 |
155 |
11 |
|
ZA185 |
185 |
14 |
|
ZA200 |
200 |
15 |
|
ZA255 |
255 |
20 |
|
ZA300 |
300 |
23 |
|
ZF080 |
80 |
6 |
|
ZF100 |
100 |
7 |
|
ZF120 |
120 |
8 |
|
ZF140 |
140 |
10 |
Available Steel Grade
|
Available Steel Grade(Ensure weight and support third-party testing) |
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|
Steel grade |
Coating |
Yield(MPA) |
Tensile(MPA) |
Elongation(%) |
|
DX51D |
Z,ZF |
-- |
270-500 |
20 |
|
DX52D |
Z,ZF |
140-300 |
270-420 |
22 |
|
DX53D |
Z,ZF |
140-260 |
270-380 |
26 |
|
DX54D |
Z,ZF |
140-220 |
270-350 |
30 |
|
S220GD |
Z,ZF |
220 |
300 |
18 |
|
S250GD |
Z,ZF |
250 |
330 |
17 |
|
S280GD |
Z,ZF |
280 |
360 |
16 |
|
S320GD |
Z,ZF |
320 |
390 |
15 |
|
S350GD |
Z,ZF |
350 |
420 |
14 |
|
S400GD |
Z,ZF |
400 |
470 |
-- |
|
S450GD |
Z,ZF |
450 |
530 |
-- |
|
S500GD |
Z,ZF |
500 |
560 |
-- |
|
Select type Galvanized Steel based on requirements |
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