Galvanized Galvalume PPGI Prepainted Corrugated Steel Roofing Sheet

Model NO.
ASTM, JIS, GB, AISI, DIN, BS
Technique
Hot Rolled/Cold Rolled
Application
Mold & Dies, Ship Plate, Boiler Plate, Container Plate, Flange Plate, Mold & Dies, Ship Plate, Boiler Plate, Container P
Special Use
Cutting Tools, Measuring Tools, Cutters in Common Steel, High-strength Steel Plate, Wear Resistant Steel, Silicon Steel
Stock
Stock
Processing Service
Bending, Welding, Cutting
Supply Ability
40000mt/Month
Edge
Mill
Substrate
Cold Rolled, Hot Rolled
Tolerance
±1%
Thickness
0.12-4.0mm
Length
as Customer′s Requirements
Width
600-2000mm
Zinc Coated
30 G/M2-275 G/M2
Spangle
Zero Spangles (0.12-2.0 mm), 0.7-4 mm with Small S
Transport Package
in Bulk, in Bunddle, in Water Proof Plastic Wrrapp
Specification
0.12-4.0mm*600-2000mm
Origin
China
HS Code
7208519000
Production Capacity
50000pices/Year
Reference Price
$ 378.00 - 522.00

Product Description

Product Description

GI Sheet Material Types

The commonly used galvanized steel grades are:

Commercial Sheet (CQ);
Forming Steel;
GI Sheet for Structural Use (HSLA);
Deep Drawing Steel Sheet (DDQ);
Extra Deep Drawing Steel (EDDS), etc.

How to Calculate GI Sheet Weight?
The GI sheet weight follows the calculation formula: W= Thickness (mm) * Width (m) * Length (m) * 7.85 (Density of steel = 7.85 kg/m3) + zinc layer weight

Taking gauge 18 GI sheets (G90) for example, the thickness is about 1.31 mm. The zinc layer is about 275 g/m2. So the galvanized sheet weight per square meter is about 10.58 kg. You can roughly get the weight. If your galvanized sheet is 0.7 mm in thickness, 1.2 m in width, and 2.5 m in length, the weight is about 16.5 kg/piece (0.7*1.2*2.5). If you order 50 tons, there will be about 3,000 pieces. You can estimate how many GI sheets are needed for your project easily.
Galvanized Galvalume PPGI Prepainted Corrugated Steel Roofing SheetGalvanized Galvalume PPGI Prepainted Corrugated Steel Roofing Sheet
SPECIFICATIONS

 

SPECIFICATION PARAMETER
CommodityGalvanized Steel Sheet
GradeQ195, 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
SpangleZero spangles (0.12-2.0 mm), 0.7-4 mm with small spangles, regular (big) spangles
Surface treatmentChromated, oiled and anti-fingerprint
Thickness0.12-4.0mm
Width600-2000mm
Supply Ability40000MT/month
MOQ5MT
PackagingExport standard, seaworthy
SubstrateCold rolled, Hot rolled
ID508mm or 610mm
CertificatesSGS, BV, ISO 9001
Trade TermFOB, CFR, CIF
Payment termsT/T, L/C at sight, West Union, D/P, D/A, Paypal
Delivery time14days after confirmed order
Loading portTianjin port
Container size20ft 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
GaugemmInches
84.270.1681
93.890.1532
103.510.1382
113.130.1233
122.750.1084
141.990.0785
161.610.0635
181.310.0516
201.010.0396
210.930.0366
220.850.0336
230.780.0306
240.70.0276
250.630.0247
260.550.0217
270.510.0202
280.470.0187
300.40.0157
StandardGB/T 2518EN10346JIS G 3141ASTM A663
GradeDX51D+ZDX51D+ZSGCCCS Type C
DX52D+ZDX52D+ZSGCD1CSTypeA.B
DX53D+ZDX53D+ZSGCD2FS Type A, B
DX54D+ZDX54D+ZSGCD3DDS Type C
S250GD+ZS250GD+ZSGC340SS255
S280GD+ZS280GD+ZSGC400SS275
S320GD+ZS320GD+Z--
S350GD+ZS350GD+ZSGC440SS340 Class4
S550GD+ZS550GD+ZSGC590SS550 Class2
Galvanized Galvalume PPGI Prepainted Corrugated Steel Roofing SheetGalvanized Galvalume PPGI Prepainted Corrugated Steel Roofing SheetGalvanized Galvalume PPGI Prepainted Corrugated Steel Roofing SheetHot-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).

 

 

PNEUTEC.IT, 2023