What to Consider When Searching for Galvanised Steel Coil Suppliers?
It’s important to cooperate with a reliable galvanised steel coil supplier for both agents and your own projects. A reliable supplier will offer you quality products according to the contract, as well as full service. Wanzhi Steel is a leading supplier of galvanized steel sheets and coils. Below are some details for your reference.
Basic Information About Galvanized Steel
1. What Is Galvanised Steel Coil?
The galvanized coil uses cold rolled or hot rolled steel sheet as base metal, and then it is coated with zinc on both sides. The main galvanizing methods include the continuous hot-dip galvanizing and electro galvanizing process. Hot-dip galvanizing process is immersing the steel product in molten zinc at high temperatures, the zinc layer then being rapidly oxidized in the open air. Zinc oxide further reacts with carbon dioxide to form the protective layer known as zinc carbonate. Generally, the thickness is thick and its corrosion resistance is excellent. While the electro galvanizing process is applying zinc through electrolytic treatment. Zinc paints may be applied by brushes, rollers, spray guns, etc. Cold galvanizing does not offer the same protection effect as hot-dip galvanizing. But it is ideal for cost-effective and rapid application on smaller structures and components. So when you purchase galvanized steel, the first thing you should know is what kind of GI steel you need, hot-dip galvanized or electro galvanized steel.
2. Everything About Galvanised Steel Quality
– Product standard, for example, the base metal, the maximum zinc coating thickness, width, thickness range, galvanizing method, spangles, packaging, etc.
Galvanizing is one of the most effective and economical methods for protecting bare steel from corrosive environments. You need to choose mainly on the basis of the use environment. During the continuous galvanizing process, the zinc layer will be performed on the surface of the steel coil. The coil runs at about 150 meters per minute. When the coil leaves the zinc bath, it takes away an extra layer of molten zinc. Use a high-pressure air knife to remove excess zinc to form the desired thickness. The material is then allowed to cool and form a shiny finish. The spangles will be formed when the zinc layer crystallized. The spangles will not influence the property of the galvanized steel. You can choose according to your preference.
Base Metal of Galvanised Steel Coil
The most common substrate for GI coil is hot rolled and cold rolled steel coil. The main difference between hot and cold rolled steel is in how they are processed. Hot rolled steel is steel that has been rolled at high temperatures (typically over 1700˚F), while cold rolled steel is essentially hot rolled steel that is further processed by being allowed to cool at room temperature and annealed or temper rolled. Cold rolling produces steel with closer dimensional tolerances and a wider range of surface finishes than hot rolling. While hot rolled steel tends to be cheaper than cold rolled steel. The material differences and zinc layer thickness can be tested by special equipment. If you want to know more information, you can ask for a third-party quality inspection.
– Quality Certificate
At Wanzhi Steel, our products will strictly meet the national standard. Also, third-party quality inspection is acceptable. Therefore, we can offer you the related certificates.
– Sample Service
At Wanzhi Steel, it is free to get an A4 size sample. If you need samples, please contact us. While if you have special requirements about the color or pattern for color coated steel coil, you can also send us a sample for reference.
3. Factory (manufacturers) or trading company?
They have different features. Most of us believe that factories will offer a cheaper price, but they may do domestic service only. While the trading company often has rich export experience. You can also find some suppliers who also have their own factories.
4. Supplying Capability
It includes the production capacity and stock available. If the supplier owns a huge inventory, it means that they can ensure their lead time greatly. Our monthly output of galvanized steel coil is about 50,000 tons. You may want to buy from famous and large-scale galvanized steel coils suppliers, such as Baosteel. But generally, their price will be much higher. In comparison, the factories like us will offer a more competitive price without compromising quality. If you have no special requirements, such as super thick zinc coating, you can choose suppliers like us.
– Delivery Time
Timely delivery is an important factor of a good supplier. Generally, the lead time is mainly influenced by the order quantity. If you are urgent for 200,000 tons, it may be difficult for us. But we will promise to deliver in accordance with the contract.
5. Payment Terms and Conditions
There are many payment terms to choose from, such as LC (Letters of Credit), TT (telegraphic transfer), etc. You need to negotiate with the supplier to find a mutually acceptable payment term.
6. After-sales Service
It is inevitable to have some issues during trading, such as scratches during transportation, etc. A good supplier will offer you worry-free after-sales service. Wanzhi Steel will never turn a blind eye to problems that arise. We promise to offer you a solution to your satisfaction.
7. Ease of Communication
Language and culture barriers can present real challenges for buyers when looking for galvanized steel coil suppliers online. Although we have benefited a lot from the translation tools, we can’t rely on them all the time when negotiating an order. Therefore, it is important to work with a supplier that’s easy to communicate with, which can prevent a variety of problems ranging from production delays to product nonconformities. As a global export company, Wanzhi Steel has developed a multilingual sales team, which can speak English, Chinese, Spanish, Russian, etc. Wherever you are from, you can feel free to contact us!
8. Other Things to Consider
– Price
Price is probably your biggest concern. We always want a lower price. That’s why most clients would like to purchase from China. But please do not rely on the cheap price only to avoid being deceived. You can choose some reliable suppliers and compare their prices and product details before purchasing.
– Experience
Looking for an experienced galvanised steel coil supplier will help you to save time and money. If they have been in this industry for decades, they have enough resources to serve you the best.
– Minimum order quantity (MOQ)
For steel products, the order quantity will directly influence the price and the shipping cost. Taking Wanzhi Steel for example, the MOQ for the galvanized coil is 5 tons. But considering the shipping cost, we will suggest buying at least 25 tons (a full container). If you are looking for 50 pieces of galvanized roofing sheets for your own houses, you’d better buy from the local market because of the expensive shipping costs.
There are many factors to consider when looking for galvanised steel coil suppliers. To be honest, it is difficult to find one who offers the right quality and right price directly. You need to ask and compare, and finally to the one that suits your needs best. Wanzhi Steel is a supplier of steel products in China. Except for galvanized steel coils, sheets, and strips, we also have pre-painted steel products and GI roofing sheets for sale. We are not a very big-scale supplier, but we won a good reputation among our customers. Since 2012, we have served hundreds of clients all over the world. Our rich export experience will help you to save time and money. If you want more details about GI steel, please feel free to contact us!
