20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate

Model NO.
galvanized steel sheet
Special Use
Cutting Tools, Measuring Tools, Cutters in Common Steel, High-strength Steel Plate, Wear Resistant Steel, Silicon Steel
Stock
Stock
Surface
Cheomated/Non-Chromated, Non Oiled, Anti Finger
Temper
Full Hard, Half Hard, Sort
Width
30mm-2050mm, as Required
Length
1000-8000mm.as Required
Transport Package
Standard Sea-Worthy Packing or as Requried
Specification
AS customer required
Trademark
zhongtongboda
Origin
China
Production Capacity
2000 Ton Per Month
Reference Price
$ 387.00 - 468.00
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Product Description

20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate

Product Description

20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate

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.
20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate
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
Supply Ability 40000MT/month
MOQ 5MT
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
20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate 20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate 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.
APPLICATION
20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate Types of GI Sheets
In terms of the manufacturing process, we divide it into hot-dip galvanized steel sheets and electro-galvanized steel sheets. Hot-dip galvanized sheet is mainly used in construction, home appliances, automobiles, light industry, and other industries. Below are more details for your reference.
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Company Profile

20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate Shandong Zhongtong Boda Steel Co., Ltd has been engaged in steel production and sales for many years. It mainly produce and sell pipe materials (stainless steel pipe, seamless pipe, precision pipe, alloy pipe, carbon steel pipe, seamless square rectangular pipe, straight seam welded pipe, spiral welded pipe, galvanized pipe, steel plastic pipe, greenhouse pipe), plate (common plate, cold plate, alloy plate, stainless steel plate, galvanized sheet), profile (flat steel, angle steel, round steel, I-beam, channel steel) and copper alloy, aluminum alloy materials and large-scale comprehensive enterprises.

With a complete and scientific quality management system, it now has 4 domestic advanced cold drawn seamless steel pipe production lines, 4 hot-rolled seamless steel pipe production lines, 30 sets of finishing rolling seamless steel pipe production lines, 1 seamless rectangular tube production line, 2 straight welded pipe production lines, 2 square rectangular pipe production lines, 2 spiral pipe production lines, 1 galvanized pipe production line, which can produce various specifications and materials annually.

The company has business relations with Baosteel, Baotou Steel, Angang, Yegang, Henggang, Pangang, Tiangang, Anyang, WISCO, Shagang, Shangang, Handan steel, Maanshan Iron and Steel Co., Ltd., Masteel, NISCO and so on. The total stock of all kinds of steel is up to 100000 tons. All products are in accordance with the national and European standards.

20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate
With 20 years experience of  steel industry, we supplied trading companies and domestic market quality steel products. We are dedicated to meeting our customers steel requirements. With our conscientious approach, excellent customer service and utmost customer satisfaction as the guiding force, we believe our company will grow by leaps and bounds.
20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate
Packaging & Shipping

20 21 22 23 24 25 Gauge S320gd S350gd S400gd Gi Roofing Sheet Galvanized/Galvanised Steel Plate

FAQ

 
Q:May I have an inspection of your factory?
A:Sure, you're welcome any time.
 
Q: Can I personalize the product?
A:The minimum order quantity is more than 10 tons, we can meet your personalized requirements.
 
Q: How I believe you?
A:We consider honest as the life of our company, Besides, there is trade assurance from Alibaba, your order and money will be  well guaranteed.
 
Q:What is your delivery time?
A:We are based on the quantity of products to determine the delivery time, you can consult us for the answer.

 

Steel Sheet & Plate

PNEUTEC.IT, 2023