| SPECIFICATION PARAMETER |
| Commodity |
Galvanized Steel Sheet |
| Grade |
Q195, Q235 |
| SGCC, SGCH, SGC340, SGC400, SGC440, SGC490, SGC570 |
| SGHC, SGH340, SGH400, SGH440, SGH490, SGH540 |
| DX51D, DX52D, DX53D, DX54D |
| S220GD, S250GD, S280GD, S320GD, S350GD, S400GD, S500GD, S550GD |
| Standard: |
AISI, ASTM, BS, DIN, GB, JIS |
| Zinc coated: |
30 g/m2-275 g/m2 |
| Spangle |
Zero spangles (0.12-2.0 mm), 0.7-4 mm with small spangles, regular (big) spangles |
| Surface treatment |
Chromated, oiled and anti-fingerprint |
| Thickness |
0.12-4.0mm |
| Width |
600-2000mm |
| MOQ |
3MT |
| Packaging |
Export standard, seaworthy |
| Substrate |
Cold rolled, Hot rolled |
| ID |
508mm or 610mm |
| Certificates |
SGS, BV, ISO 9001 |
| Trade Term |
FOB, CFR, CIF |
| Payment terms |
T/T, L/C at sight, West Union, D/P, D/A, Paypal |
| Delivery time |
14days after confirmed order |
| Loading port |
Tianjin port |
| Container size |
20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High) |
| 40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High) |
| 40ft HC: 12032mm(Length)x2352mm(Width)x2698mm(High) |
| Galvanized Steel Sheet Gauge Chart |
| Gauge |
mm |
Inches |
| 8 |
4.27 |
0.1681 |
| 9 |
3.89 |
0.1532 |
| 10 |
3.51 |
0.1382 |
| 11 |
3.13 |
0.1233 |
| 12 |
2.75 |
0.1084 |
| 14 |
1.99 |
0.0785 |
| 16 |
1.61 |
0.0635 |
| 18 |
1.31 |
0.0516 |
| 20 |
1.01 |
0.0396 |
| 21 |
0.93 |
0.0366 |
| 22 |
0.85 |
0.0336 |
| 23 |
0.78 |
0.0306 |
| 24 |
0.7 |
0.0276 |
| 25 |
0.63 |
0.0247 |
| 26 |
0.55 |
0.0217 |
| 27 |
0.51 |
0.0202 |
| 28 |
0.47 |
0.0187 |
| 30 |
0.4 |
0.0157 |
| Standard |
GB/T 2518 |
EN10346 |
JIS G 3141 |
ASTM A663 |
| Grade |
DX51D+Z |
DX51D+Z |
SGCC |
CS Type C |
| DX52D+Z |
DX52D+Z |
SGCD1 |
CSTypeA.B |
| DX53D+Z |
DX53D+Z |
SGCD2 |
FS Type A, B |
| DX54D+Z |
DX54D+Z |
SGCD3 |
DDS Type C |
| S250GD+Z |
S250GD+Z |
SGC340 |
SS255 |
| S280GD+Z |
S280GD+Z |
SGC400 |
SS275 |
| S320GD+Z |
S320GD+Z |
- |
- |
| S350GD+Z |
S350GD+Z |
SGC440 |
SS340 Class4 |
| S550GD+Z |
S550GD+Z |
SGC590 |
SS550 Class2 |
Hot-dip Galvanized Steel Sheet
Hot-dip galvanized sheet is made by immersing the steel sheet in a molten zinc bath at about 500 °C to attach a zinc layer to the surface. This is the continuous galvanizing process. It will form a protective zinc layer on the surface so that it has good paint adhesion and weldability. It is the most widely used and cost-effective method to prolong the service life of steel sheets. .
Electro-galvanized Steel Sheet
Electro-galvanizing, also known as cold galvanizing, uses electrolysis to form a uniform and dense layer on the surface of the metal. The anti-corrosion zinc layer can protect steel parts from oxidation corrosion. Also, it can meet decorative purposes. But the zinc layer of the electro-galvanizing steel sheet is only 5-30 g/m2. So its corrosion resistance is not as good as hot-dip galvanized sheets.
Difference Between Hot-Dip and Electro-galvanized Steel Sheets
Anti-corrosion
The zinc coating thickness is one of the most important factors matters corrosion resistance. The greater the zinc layer thickness, the better the corrosion resistance. Generally, the thickness of hot-dip zinc coating is more than 30 g/m2, or even as high as 600 g/m2. While the electro-galvanized zinc layer is only 5~30 g/m2 thick. So the former steel sheet is much more corrosion resistant than the latter one. At Wanzhi Steel, the maximum zinc layer is 275 g/m2 (z275 galvanized steel sheet).
Method of Operation
The hot-dip galvanized steel sheet is galvanized in a molten zinc bath at about 500 degrees, while the electro-galvanized steel sheet is processed at room temperature by electroplating or other methods. That's why electro-galvanizing also refers to the cold galvanizing process.
Surface Smoothness & Adhesion
The surface of the electro-galvanized steel sheet looks smoother than hot-dip galvanized sheets. But its adhesion is not as good as that of the hot-dip galvanized sheet. If you want only one side galvanized, you can choose the electroplating method. However, if adopting hot-dip galvanizing, both sides are coated with a zinc layer fully.
Our Services:
1. We have multiple automatic production lines. We can make sure the timely delivery.
2. We offers high-quality products at reasonable prices. We provide professional services to each customer based on their needs.
3. All of our products are produce by our professional workman and we have our high work effect foreign trade team, you can totally believe our service.
4. We have many years experience for export, we cherish every order from our honor.
Transportation: We support sea transportation, air transportation, land transportation and other modes of transportation and Various express delivery methods.
Payment: We support L / C, T/ T, Western Union, MoneyGram and other payment methods
FAQ:
Q:Can you send samples?
A:Of course, we can send samples to all parts of the world.
Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao ports, you can choose other ports according to your needs.
Q:What are the certifications for your products?
A:We have ISO 9001, SGS, EWC and other certifications.
Q:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be delayed if the demand is extremely large or special circumstances occur.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.
Q:How to pack the products?
A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It caneffectively protect products from corrosion during ocean transportation.Send your message to this supplier
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