Specifications
price galvanized steel sheetbuilding materials
various application prepainted steel coil
Good resistance of corrosion/water
gi sheet / galvanized steel sheet is a form of galvanization. It is the process of coating iron, steel, or aluminum with a thin zinc layer, by passing the metal through a molten bath of zinc at a temperature of around 860 °F (460 °C). When exposed to the atmosphere, the pure zinc (Zn) reacts with oxygen (O2) to form zinc oxide (ZnO), which further reacts with carbon dioxide (CO2) to form zinc carbonate (ZnCO3), a usually dull grey, fairly strong material that stops further corrosion in many circumstances, protecting the steel below from the elements.
gi sheet / galvanized steel sheet is widely used in applications where rust resistance is needed, and can be identified by the crystallization patterning on the surface (often called a “spangle”).
gi sheet / galvanized steel sheet has gone through a chemical process to keep it from corroding. The steel gets coated in layers of zinc because rust won't attack this protective metal. For countless outdoor, marine, or industrial applications, galvanized steel is an essential fabrication component.
Corporation Introduction
Shandong Longfa is a logistics, new building materials, galvanized steel processing, plastics machinery research and development as one group of the large-scale private enterprises.It has two production lines of PPGI/PPGL, one roduction line of GI and six lines of Sandwich Board.

We mainly manufacture all kinds of pre-painted galvanized steel coils (PPGI), hot dipped galvanized steel coils (GI), galvalume steel coil (GL), roofing sheet, composite boards, galvanized corrugated sheet and so on.
1) Available Designation
Quality | Q/BQB 440-2003 | JIS G3312-1994 | EN 10326-2004 | ASTM A653-02a |
EN 10327-2004 | (BASE PLATE) | |||
(BASE PLATE) |
| |||
Commercial Steel | TDC51D | CGCC | DX51D+Z/AZ | CS Type A/B/C |
Forming Steel | (TSt01,TSt02,TSt03) | CGCD1 | FS Type A, Type B | |
Drawing | TDC52D /TDC53D | - | DX52D+Z/AZ | DDS TYPE A/C |
Steel | DX53D+Z/AZ | |||
Structural | TS280GD(TStE28) | CGC400 | S280D+Z/AZ | SS275 |
Steel | TS350GD(TStE34) | CGC440 | S350D+Z/AZ | SS340 Class1 |
2) Available Size:
Manufacturer | Thickness | Width | Length of plate | Inner diameter of coil |
SHANDONG LONGFA STEEL PLATE CO., LTD | 0.135~1.2mm | 800/914/1000/1200/1219/1250mm | 1000-6000mm | 508mm/610mm |
3) Coated Mass:
Base plate | Available Coated Mass(g/m^2) |
Galvanized Steel | 30,50,60,80, 100, 120, 160, 180,200 |
Galvalume Steel | 30,50, 60, 80,100,120 |
4) Available Painting:
Category of Painting | Item | Code | |
Polyester | PE | ||
High-durability polyester | HDP | ||
Silicon modified polyesters | SMP | ||
Polyvinylidene fluoride | PVDF | ||
Easy-Cleaning | — | ||
Painting Thickness | Top side: 20+5microns; | ||
Bottom side: 5~7microns. | |||
Color System | Produce according to RAL Color System or as per buyer’s color sample. | ||
Painting structure | Top surface | Bottom surface |
|
Primer coating | No coating | 1/0 | |
Primer coating | Primer coating | 1/1 | |
Primer coating + Finish coating | No coating | 2/0 | |
Primer coating + Finish coating | Primer coating or single back coating | 2/1 | |
Primer coating + Finish coating | Primer coating + Finish back coating | 2/2 | |
Note: Protect film available
Application
Construction | Outside | Workshop, agricultural warehouse, residential precast unit, corrugated roof, roller shutter door, rainwater drainage pipe, retailer booth |
Inside | Door, doorcase, light steel roof structure, folding screen, elevator, stairway, vent gutter | |
Electrical appliance | Refrigerator, washer, switch cabinet, instrument cabinet, air conditioning, micro-wave oven, bread maker | |
Furniture | Central heating slice, lampshade, chifforobe, desk, bed, locker, bookshelf | |
Carrying trade | Exterior decoration of auto and train, clapboard, container, isolation lairage, isolation board | |
Others | Writing panel, garbage can, billboard, timekeeper, typewriter, instrument panel, weight sensor, photographic equipment | |
Pre-painted galvanized steel coils (ppgi coils)
Galvanized corrugated sheet, colored corrugated metal roofing sheet, roof tile, sandwich panels
Packing
Each bare coil to be securely tied with two bands through the eye of coil (or not) and one circumferential, the contact points of these bands on the coil edge to be protect with edge protectors. Coil then to be properly wrapped with water proof /resistant paper, it then to be properly and completely metal wrapped. And each packed coil to be properly wrapped with band, three-six such band through the eye of coil at about equal distance, and two-four such bands securely tied around belly of coil at about equal distance.
Certificate
Our company operates to the stringent ISO 9001 and ISO 14001 quality standards and is committed to being a first-class coated steelmaker.
If you do have interest in our company or products .You may contact with me.
Best regards & thanks
Shmily Song
Send Inquiry to This Supplier
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