Product Item: GI Corrugated Steel Sheet, Galvanized Corrugated Sheet, GI Corrugated Steel Roofing Sheet
Effective Width: 650-1250 mm
Thickness: 0.13-0.8 mm
Materials: Aluzinc or Zinc Coating PPGI Steel Coil
Length: 1m - 11.8m according to the container
Zinc-coating: 40g/m2 to 150g/m2
Color: White, Blue or any RAL Colors
Top Color Coating: 12um-25um
Our Galvanized Corrugated Steel Sheets are made from Aluzinc or Zinc Coated PPGI Steel Coils, with an effective width of 650-1250 mm, thickness of 0.13-0.8 mm, and lengths ranging from 1-11.8 meters.
These sheets offer excellent durability, corrosion resistance, and are ideal for roofing and cladding applications.
Product Details
GI Corrugated Roofing Sheet is protected from corrosion by a zinc coating applied to the steel sheet.The zinc coating should be thick enough to ensure the durability of the GI Corrugated Roofing Sheet by preventing corrosion.
A 20 µm coat of zinc should be applied per side of the GI Corrugated Roofing Sheet (total of 40µm for both sides of the GI Corrugated Roofing Sheet equivalent to 275g/m²). Zinc coating thickness and method of galvanization are the most important factors for durability.
The galvanization method used must be hot-dip galvanization as it better ensures the durability of the GI Corrugated Roofing Sheet. Other methods such as electro-galvanization should be avoided because the coating thickness is thinner than hot-dip galvanization and the durability of the GI Corrugated Roofing Sheet will be reduced, as a result.
It's possible to increase the zinc coating thickness in order to increase the service life (durability) of the GI Corrugated Roofing Sheet.
|
Commodity |
GI Corrugated Roofing Sheet |
|
Thickness |
0.12-2.0mm |
|
Width |
600-1250mm(750mm, 762mm, 880mm, 900mm, 914mm, 940mm, 1040mm, 1219mm,1250mm,1000mm the most common) |
|
Zinc coating |
30-275 g/m2 |
|
Type |
hot dipped galvanized zinc coated steel sheet |
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Weight |
2-5MT Per Pallet, or as per customers' requests |
|
Material |
SGCC,DX51D+Z,SGCC/CGCC/Dx51D/DX52D,S350GD,S550GD/DX53D+Z ,DX54D+Z ,Q195 ,Q235 ,Q345 |
|
Grade |
JIS G3302,SGCC-SGC570 , SGCH(Full Hard-G550),EN 10346-DX51D+Z, S250GD-S550GD,ASTM A653M CS-B, SS255~SS550,DX53D+Z ,DX54D+Z ,Q195 ,Q235 ,Q345 |
| Surface treatment | Coated,oiling/passivation or chromium free passivation/skin pass/oiled, chrome plated, anti-fingerprint, lacquered, etc. |
|
Package |
PVC film Water-proof paper, galvanized steel covered and steel strip packed |
What is Aluzinc Sheet?
Aluzinc steel sheet, also known as galvalume steel, is an alloy-coated steel product made from a hot-dip-plated, cold-rolled steel substrate that is coated with an aluminum-zinc alloy consisting of 55% aluminum, 43.4% zinc, and 1.6% silicon.
Aluminum: provides heat resistance and forms a protective barrier against oxidation.
Zinc: provides sacrificial protection against rust.
Silicon: enhances adhesion and uniformity of the coating.
Product form
Aluzinc sheet: Supplied as coil or cut sheet. It can be stocked as a base material or used directly as a color coated substrate.
Aluzinc Corrugated Sheet: GL flat sheet formed by continuous roll forming, wave height is 10-50mm, wave pitch is 60-400mm. Good structural rigidity.
Aluzinc Sandwich Panel: Aluminum-zinc plated sheet as the surface layer, the middle filled with polyurethane/rock wool and other insulation core material composite panels.
Aluzinc Profiles: C/Z Purlin, Drainage Gutter, Stamping Parts, etc.
Classification
Architectural Aluzinc Sheet: AZ60/AZ75, regular zinc flower or small zinc flower metal roof panel, wall panel, ridge cover, ventilator, guttering, downpipe, etc.
Appliance Aluzinc Sheet: no zinc flower AZ50/AZ60 Refrigerator, freezer back/side plate/casing, washing machine casing/tumbler/panel, air conditioning casing/partition, water heater casing, oven casing, etc.
Industrial Aluzinc Sheet: Industrial Plant enclosures, grain bins, garage doors, industrial doors, ventilation ducts (especially high-temperature-resistant parts), electrical cabinets, reflectors for lamps (to take advantage of the high reflectivity), general containers, agricultural equipment parts, etc.
Processing
Passivation: Chromate passivation/chrome-free passivation, which significantly improves the resistance to white rust
Oiling: Coating of the surface with a very thin layer of rust preventive oil.
Skin Passing / Tension Leveling: Slight cold rolling to improve surface flatness, finish and hardness.
