Specifications of Galvanized Angle Steel
1. Invoicing on theoretical weight or actual weight as customer request
2. Length: 6m
3. Sizes:
Galvanized Angle Steel Zinc Thickness: 15-80μ
HOT DIPPED GALVANZED EQUAL ANGLES SIZES |
| ||
a(mm) | a1(mm) | thickness(mm) | length |
25 | 25 | 2.5---3.0 | 6M |
30 | 30 | 2.5---4.0 | 6M |
38 | 38 | 2.5 | 6M |
38 | 38 | 3.0---5.0 | 6M |
40 | 40 | 3.0---6.0 | 6M |
50 | 50 | 3 | 6M |
50 | 50 | 3.7---6.0 | 6M |
60 | 60 | 5.0---6.0 | 6M |
63 | 63 | 6.0---8.0 | 6M |
65 | 65 | 5.0---8.0 | 6M |
70 | 70 | 6.0---7.0 | 6M |
75 | 75 | 5.0---10.0 | 6M |
80 | 80 | 6.0---10.0 | 6M |
90 | 90 | 6.0---10.0 | 6M |
100 | 100 | 6.0---12.0 | 6M |
120 | 120 | 8.0-12.0 | 6M |
125 | 125 | 8.0---12.0 | 6M |
130 | 130 | 9.0-12.0 | 6M |
140 | 140 | 10.0-16.0 | 6M |
150 | 150 | 10---15 | 6M |
160 | 160 | 10---16 | 6M |
180 | 180 | 12---18 | 6M |
200 | 200 | 14---20 | 6M |
5. PROCESS: HOT-DIP GALVANIZATION
Hot-dip galvanization is a form of galvanization. It is the process of coating iron, steel or aluminium with a layer of zinc by immersing the metal in a bath of molten 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. Galvanized steel is widely used in applications where corrosion resistance is needed, and can be identified by the crystallization patterning on the surface (often called a "spangle").
Usage & Applications of Galvanized Angle Steel
Galvanized steel can be welded; however, one must exercise caution around the resulting zinc fumes. Galvanized steel is suitable for high-temperature applications of up to 392 °F (200 °C). The use of galvanized steel at temperatures above this will result in peeling of the zinc at the inter metallic layer. Electrogalvanized sheet steel is often used in automotive manufacturing to enhance the corrosion performance of exterior body panels; this is, however, a completely different process which tends to achieve lower coating thicknesses of zinc.
Like all other corrosion protection systems, galvanizing protects steel by acting as a barrier between steel and the atmosphere. However, zinc is a more electronegative metal in comparison to steel, this is a unique characteristic for galvanizing which means that when a galvanized coating is damaged and steel is exposed to the atmosphere, zinc can continue to protect steel (often within an annulus of 5 mm above which electron transfer rate decreases)..
Packaging & Delivery of Galvanized Angle Steel
1. Packing: it is nude packed in bundles by steel wire rod
2. Bundle weight: not more than 3.5MT for bulk vessel; less than 3 MT for container load
3. Marks:
Color marking: There will be color marking on both end of the bundle for the cargo delivered by bulk vessel. That makes it easily to distinguish at the destination port.
Tag mark: there will be tag mark tied up on the bundles. The information usually including supplier logo and name, product name, made in China, shipping marks and other information request by the customer.
If loading by container the marking is not needed, but we will prepare it as customer request.
4. Transportation: the goods are delivered by truck from mill to loading port, the maximum quantity can be loaded is around 40MTs by each truck. If the order quantity cannot reach the full truck loaded, the transportation cost per ton will be little higher than full load.
5. Delivered by container or bulk vessel
