The weight of a galvanized sheet can be calculated by its density and dimensions. The density of galvanized sheets is generally considered to be 7.85 tons/cubic meter (or 7.85g/cm³). This density value is applicable to galvanized sheets of different thicknesses.
For instance, a 1.0mm thick galvanized sheet weighs 7.85Kg per square meter, while a 0.75mm thick sheet weighs 5.8875Kg per square meter.
The specific weight calculation formula is: Theoretical weight of galvanized sheet = Length of galvanized sheet x Width of galvanized sheet x Thickness of galvanized sheet x Density of galvanized sheet.
For example, if there’s a galvanized sheet with a thickness of 0.2mm, a width of 1000mm, and a length of 1000mm, its weight can be calculated by substituting these values into the above formula. For such dimensions and thickness, the density of the galvanized roll is 7.58x1000kg/cubic meter, thus the weight of a steel plate that is 1 meter long, 1 meter wide, and 0.2mm thick is: 0.21.01.0*7.85=1.57kg.
It’s important to note that the weight of the galvanized sheet may also be affected by the galvanizing layer, as galvanized sheets are processed by galvanizing on the basis of cold-rolled or hot-rolled steel sheets.
Moreover, the specification table and theoretical weight knowledge of galvanized sheets also show that the nominal thickness range of galvanized sheets is 0.3mm~5.0mm, the nominal width is 600mm~2050mm, and the nominal length is 1000mm~8000mm, which further illustrates the complexity and diversity of calculating the weight of galvanized sheets.
Galvanized Sheet Weight Calculator
Galvanized sheets are usually delivered based on their theoretical weight, whereas galvanized steel strips are typically delivered based on their actual weight.
The theoretical weight of galvanized sheets takes into account the weight of the cold-rolled or hot-rolled steel plate on which they are based. This weight includes two parts:
- one is the theoretical weight of cold-rolled or hot-rolled steel plate (substrate) for processing galvanized sheet;
- the other is the theoretical weight of the galvanized layer.
You can use the below galvanized sheet weight calculator to calculate the weight of the galvanized sheet.
Related Calculator:
Nominal Coating Weight Range
| Coating form | Applicable coating surface structure | Nominal coating weight range (g/m2) | |
|---|---|---|---|
| Pure zinc coating (Z) | Zinc iron alloy coating (ZF) | ||
| Equal thickness coating | N, M, F, R | 50~600 | 60~180 |
| Differential coating | N, M, F | 25 ~ 150 (each side) | — |
Note:
- N, M and F are pure zinc coatings.
- N indicates that the surface structure of the coating is ordinary zinc flower.
- M indicates small zinc flower;
- F indicates no zinc flower;
- R is the common zinc flower of zinc-iron alloy coating.
Nominal Coating Weight and Corresponding Coating Code
| Coating type | Coating form | Recommended nominal coating weight (g/m²) | Coating code |
|---|---|---|---|
| Pure zinc coating (Z) | Equal thickness coating | 60 | 60 |
| 80 | 80 | ||
| 100 | 100 | ||
| 120 | 120 | ||
| 150 | 150 | ||
| 180 | 180 | ||
| 200 | 200 | ||
| 220 | 220 | ||
| 250 | 250 | ||
| 275 | 275 | ||
| 350 | 350 | ||
| 450 | 450 | ||
| 600 | 600 | ||
| Zinc iron alloy coating (ZF) | Equal thickness coating | 60 | 60 |
| 90 | 90 | ||
| 120 | 120 | ||
| 140 | 140 | ||
| Pure zinc coating (Z) | Differential coating | 30/40 | 30/40 |
| 40/60 | 40/60 | ||
| 40/100 | 40/100 |
Galvanized Sheet Weight Chart in Kg
| Thickness (mm) | Weight (Kg/m²) | Thickness (mm) | Weight (Kg/m²) |
| 0.1 | 0.785 | 1.5 | 11.775 |
| 0.12 | 0.942 | 1.6 | 12.56 |
| 0.15 | 1.1775 | 1.7 | 13.35 |
| 0.18 | 1.413 | 1.8 | 14.13 |
| 0.2 | 1.57 | 1.9 | 14.92 |
| 0.22 | 1.727 | 2 | 15.7 |
| 0.24 | 1.884 | 2.2 | 17.27 |
| 0.25 | 1.9625 | 2.5 | 19.625 |
| 0.28 | 2.198 | 2.8 | 21.98 |
| 0.3 | 2.355 | 3 | 23.55 |
| 0.32 | 2.512 | 3.2 | 25.12 |
| 0.35 | 2.7475 | 3.5 | 27.475 |
| 0.38 | 2.983 | 3.8 | 29.83 |
| 0.4 | 3.14 | 4 | 31.4 |
| 0.42 | 3.297 | 4.2 | 32.97 |
| 0.45 | 3.5325 | 4.5 | 35.325 |
| 0.48 | 3.768 | 4.8 | 37.68 |
| 0.5 | 3.925 | 5 | 39.25 |
| 0.55 | 4.318 | 5.5 | 43.18 |
| 0.6 | 4.71 | 6 | 47.1 |
| 0.65 | 5.103 | 6.5 | 51.03 |
| 0.7 | 5.496 | 7 | 54.96 |
| 0.75 | 5.8875 | 8 | 62.8 |
| 0.8 | 6.28 | 9 | 70.65 |
| 0.9 | 7.065 | 10 | 78.5 |
| 1 | 7.85 | 11 | 86.35 |
| 1.1 | 8.635 | 12 | 94.2 |
| 1.2 | 9.42 | 13 | 102.1 |
| 1.3 | 10.21 | 14 | 109.9 |
| 1.4 | 10.99 | 15 | 117.75 |
Steel plate weight(kg)=7.85×Thickness×Length×Width
1 m long and 1 m wide respectively
See also:
Generally, the thicker the galvanized sheet, the greater the allowable error range, rather than a fixed 0.02-0.04 millimeters. The thickness deviation also varies depending on factors such as yield point and tensile coefficient. This implies that galvanized sheets of different thicknesses will have noticeable weight differences, especially in the case of thicker galvanized sheets.
What Is Galvanized Sheet?
Galvanized sheet refers to a steel plate that has a layer of zinc on its surface. Galvanizing is a widely used, economical, and effective method of preventing corrosion.
Approximately half of the world’s zinc production is utilized in this process to prevent corrosion on the surface of steel plates and extend their service life.
Types of Galvanized Sheet?
According to different production and processing methods, galvanized steel sheet can be divided into:
- hot-dip galvanized steel sheet
- alloyed galvanized steel sheet
- electro galvanized steel sheet
- single-sided galvanized steel sheet
- double-sided differential galvanized steel sheet
- alloy and composite galvanized steel sheet
- color galvanized steel sheet
- printing coated galvanized steel sheet
- PVC laminated galvanized steel sheet, etc
The most commonly used type of coating surface is still hot-dip galvanized plate.
There are three types of surface coatings available, namely ordinary zincification, small zinc flower, and no zinc flower.
As per the current national standard for continuous hot dip galvanized steel sheet and strip (GB/t2518-2008), the nominal thickness of the galvanized sheet ranges from 0.3mm to 5.0mm, the nominal width ranges from 600mm to 2050mm, and the nominal length ranges from 1000mm to 8000mm.
How to Accurately Measure the Actual Weight of a Galvanized Sheet?
To accurately measure the actual weight of a galvanized sheet, you first need to understand the density and thickness of the galvanized sheet. The density of a galvanized sheet is typically 7.85g/cm³. Next, there are several methods to measure the weight of the galvanized sheet.
Weighing Method: This is a direct method by calculating the weight of the galvanized layer through the weight difference before and after weighing the galvanized sheet. This method is simple and direct, and is suitable for situations recommended in product standards.
X-Ray Fluorescence Spectrometry: This method determines the weight of the galvanized layer by analyzing the radiation intensity of zinc in the sample plating layer. First, a set of standard plates is made, and a relationship curve between the X-ray intensity of zinc and the weight of the coating is established. Then, the zinc radiation intensity in the sample is measured by regression.
Coulometric Analysis: This is a method described in the ASTM A90/A90M-13 standard for measuring the weight of galvanized and galvanized alloy steel products.
Weighing Method by Removing Galvanized Layer: By using a stripping solution to dissolve the zinc on the surface, then weighing the weight of the sample before and after stripping, the thickness of the coating is calculated according to the density of zinc (7.2g/cm³). This method is suitable for situations where the galvanized layer needs to be removed to assess its thickness.
Which method to choose depends on the specific testing requirements and available equipment conditions. In actual operation, it may be necessary to combine various methods to ensure the accuracy of the measurement results.
FAQs
What’s the weight of 18 gauge GI sheet in kg?
The weight of 18 gauge GI sheet is 9.42kg/m2.
What’s the weight of 20 gauge GI sheet in kg?
The weight of 20 gauge GI sheet is 7.06kg/m2.
What’s the weight of 22 gauge GI sheet in kg?
The weight of 22 gauge GI sheet is 5.88kg/m2.
What’s the weight of 24 gauge GI sheet in kg?
The weight of 24 gauge GI sheet is 4.71kg/m2.
What’s the weight of 26 gauge GI sheet in kg?
The weight of 26 gauge GI sheet is 3.53kg/m2.
What’s the weight of 1.2mm GI sheet in kg?
The weight of 1.2mm GI sheet is 9.42kg/m2.
See also:
what is the weight ofone squaree meter of plain GI sheet , 15 Gauge.