Dip the sheet into the molten zinc bath to make a layer of zinc sheet stick to the surface. The main use of continuous galvanized process production, that is, into a roll of steel continuous immersion in the melting of zinc plating tank to make galvanized steel; Alloyed galvanized steel sheet. This kind of steel plate is also made by hot dip method, but after the groove, it is heated to about 500℃ immediately, so that it produces an alloy coating of zinc and iron. This galvanized coil has good coating tightness and weldability.
| Product Name | Galvanized Sheet |
| Material | ASTM/AISI/SGCC/CGCC/TDC51DZM/TDC52DTS350GD/TS550GD/DX51D+Z Q195-q345SGCH/DX51D+Z,DX52D+Z,DX53D+Z,DX54D+Z,S220GD+Z/A653 |
| Standard | AISI,ASTM,BS,DIN,GB,JIS |
| Grade | SGCC/CGCC/TDC51DZM/TDC52DTS350GD/TS550GD/DX51D+ZEN 10142,EN10147,EN 10292,JIS G3302, ASTM A653/A653M, BQB 420 |
| Width | 600-1500mm or as required |
| Thickness | 0.12-4.0mm or as required |
| Length | As customer's requirement |
| Surface Structure | Regular spangle, Minimal Spangle, Zero Spangle, Big Spangle |
| Surface Treatment | Oiled and chromated, Anti fingerprints |
| Zinc Coating(g/m2) | 30-275g/m2 |
| Coil Diameter | 508mm/610mm |
| Coil Weight | 3-5 Tons or as required |
| Certification | ISO , SGS , BV |
| Technique | Cold Rolled / Hot Rolled |
| Edge | Mill Edge/ Silt Edge(磨边/槛边) |
| Quality | Mill Test Certificate supplied with the shipment ,third party inspection is acceptable |
| Package | Standard Ocean Freight PackageInside: Anti-rust paper,Plastic. Outside: Steel inner and outside guard board,Circle . Iron guard board for both side,Outside iron guard board, 3 Radial Strapping and 3 Latitude |
Chemical composition
| Al | Zn | Si | Fe | Cu | Cd | Pb | Sn | Ni | Ti +Ba+Cr |
| 55-58 | 41-43 | 1.5-2 | 0.25 | 0.03 | 0.05 | 0.01 | 0.05 | 0.05 | 0.05 |
Mechanical behavior
| grade | Yield strength, MPa | Tensile strength of MPa | elongation A%≥ |
| DX51D+Z/ZM/AZ/AM | 240-380 | 270-500 | 22 |
| DX52D+Z/ZM/AZ/AM | 140-300 | 270-420 | 26 |
| DX53D+Z/ZM/AZ/AM | 140-260 | 270-380 | 30 |
| DX54D+Z/ZM/AZ/AM | 120-220 | 260-350 | 36 |
| S220GD+Z/ZM/AM | 220 | 300 | 20 |
| S250GD+Z/ZM/AZ/AM | 250 | 330 | 19 |
| S280GD+Z/ZM/AM | 280 | 360 | 18 |
| S300GD+AZ/AM | 300 | 380 | 18 |
| S320GD+Z/ZM/AM | 320 | 390 | 17 |
| S350GD+Z/ZM/AZ/AM | 350 | 420 | 16 |
| S450GD+AZ/AM | 450 | 480 | 15 |
| S550GD+Z/ZM/AZ/AM | 550 | 550 | - |
Galvanized surface options

| Coating type | Recommended coating weight |
| Aluminum zinc alloy | 30/40/50/60/75/90/100/150 |
| A: The coating mass is 50g/㎡, which is approximately equal to the coating thickness of 13.3pm. |
| Project | Classification | Symbol |
| Coating type | Aluminum zinc alloy | AZ |
| Surface finish | regular sequins | R |
| Minimize sequins | M |
| Skin pass | S |
| Surface treatment | Chromate passivation | c |
| Non-chromate passivation | C5 |
| Chromate passivation + oiling | CO |
| Chrome-free passivation + oiling | CO5 |
| Anti-fingerprint | N |
| Chromate-free anti-fingerprint | N5 |
| Chromate-free,highly weather-resistant and anti-fingerprint | NW |
| Oiling | 0 |
| No treatment | U |
Material comparison
| Chinese standard | European standard | American standard | Japanese standard |
| DC51D+AZ | DX51D+AZ | CS Type B, Type C | SGLCC |
| DC52D+AZ | DX52D+AZ | DS | SGLCD |
| S250GD+AZ | S250GD+AZ | 255 | - |
| S300GD+AZ | - | - | - |
| S350GD+AZ | S350GD+AZ | 345 | Class1 SGLC490 |
| S550GD+AZ | S550GD+AZ | 550 | SGLC570 |