HDGI/GI Hot-Dipped Galvanized Steel Sheet in Coil/GI Coil/G550/G90
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 500 m.t./month
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The main technology of Galvanized steel sheet is proceeding by the chemistry degrease and electroanalysis with the cold rolled steel coil and sheet ,clean the oils on the surface of steel, sufficiently heated to the proper temperature for zinc coating, pass by level up, strain rectify , and then passivation or annoit etc.. Hot dip zinc is in order to improve anti-erode and prolong the usage period of material, at the same time it can beautify the surface and add arty.
Our hot dip galvanized steel sheet is widely used in such field as light industry, electrical home appliances, motorcar and construction.
Base material: |
cold rolled steel coil hot roll steel coil |
Steel type: | low carbon mild steel, extra lower carbon mild steel, low alloy steel, high strength steel |
Zinc coating weight: | 60-275g/m2, Al-Zn: 60-180g/m2 |
Thickness: | 0.15-1.5mm |
Width: | 20-1250mm |
Internal Diameter: | 508mm, 610mm |
Quality standard: | EN10142, EN10326, EN10169,JIS3302, ASTMA755M, GB/T12754 |
Steel Grade | DX51D, DX52D, DX53D, S220GD, S250GD, SGCC |
Surface Finish: | Normal spangle, Minimized spangle ,Skin-passed spangle, No spangle |
Surface Treatment: | Chromate-passivated (C),Oiled (O),Chromate-passivated + Oiled (C+O),Untreated (U),Anti-finger treatment,Phosphate treated(P) |
Weight of coil: | 1-8 MT |
Package method | Vertical, Horizontal |
- Q: How are steel coils protected against scratches and damage?
- To protect steel coils from scratches and damage, various methods are utilized. One widely used approach involves applying a protective coating or film to the surface of the coils. This coating acts as a barrier, preventing direct contact between the steel and potential sources of harm. It may consist of materials like polyethylene, PVC, or other abrasion and impact-resistant plastics. Moreover, steel coils are frequently wrapped or packaged using materials such as paper, cardboard, or plastic. This wrapping provides an additional layer of defense during storage, transportation, and handling. The wrapping material acts as a cushion, absorbing any potential impacts or friction that could cause scratches. Furthermore, special containers or pallets with protective features are employed to minimize the risk of damage to steel coils. These containers or pallets may have padded interiors, secure fastenings, or dividers that keep the coils in place and prevent them from rubbing against each other. In certain situations, steel coils are stored or transported in controlled environments to minimize damage. This may involve temperature-controlled warehouses or shipping containers that prevent the formation of moisture, which can lead to corrosion or other types of harm. Overall, a combination of protective coatings, wrapping materials, specialized containers, and controlled environments is utilized to ensure the adequate protection of steel coils against scratches and damage throughout their lifecycle.
- Q: I asked a question last week about stainless steel and got some great answers. I combed all over the internet to try to figure this one out but could not find anything. What resists bending better: chrome vanadium steel (i.e. a steel commonly used to make tools) or stainless steel 304. My guess would be the chrome vanadium alloy but thats just a guess. Which on resist's bending better and by how much (#'s please :-)). Also, if anyone knows if chrome vanadium steel is cheaper than stainless steel 304 that would be awesome? I can't find a price per pound on chrome vanadium steel anywhere! Please help. Thanks in advance-Josh
- Steel Bending Strength
- Q: Can steel coils be coated with scratch-resistant materials?
- Yes, steel coils can be coated with scratch-resistant materials. These materials can provide a protective layer that minimizes the risk of scratches and damage to the steel coils during transportation, handling, and storage.
- Q: How are steel coils used in the production of metal ceilings?
- Steel coils are used in the production of metal ceilings as they serve as the raw material. The steel coils are processed and shaped into the desired dimensions and patterns before being installed as ceiling panels.
- Q: I have a need to connect various stainless steel tubes and fitting together and was wondering how to do it. I know a TIG welder is an option but have heard rumors that there is a way to solder it in much the same way you affix copper pipe. Perhaps with higher heat and different flux. I need step by step and maybe suppliers of the materials. Thanks in advance and please I do not need the call a plumber answers as I've gotten in the past
- Soft Soldering All grades of stainless steel can be soldered with lead-tin soft solder. Leaded solders should not be used when the product being soldered is used for food processing, serving or transport. Soldered joints are relatively weak compared to the strength of the steel, so this method should not be used where the mechanical strength is dependent upon the soldered joint. Strength can be added if the edges are first lock-seamed, spot welded or riveted. In general, welding is always preferable to soldering. Recommended procedure for soldering: · 1. The steel surfaces must be clean and free of oxidation. · 2. A rough surface improves adherence of the solder, so roughening with grinding wheel, file or coarse abrasive paper is recommended. · 3. Use a phosphoric acid based flux. Hydrochloric acid based fluxes require neutralising after soldering as any remnant traces will be highly corrosive to the steel. Hydrochloric acid based fluxes are not recommended for soldering of stainless steels. · 4. Flux should be applied with a brush, to only the area being soldered. · 5. A large, hot iron is recommended. Use the same temperature as for carbon steel, but a longer time will be required because of stainless steel's low thermal conductivity. · 6. Any type of solder can be used, but at least 50% tin is recommended. Solder with 60-70% tin and 30-40% lead has a better colour match and greater strength.
- Q: I have a knife with AUS8 Stainless Steel. No idea what that means. I want to know some of the best stainless steels for knifes and all you can tell me about stainless steel would be great. I was browsing google and looking at grades and had no idea what all the numbers meant. Thanks!
- Actually-good grades of stainless is superior to high carbon steels which has been proven by countless tests. Aus8 is a japanese steel from what I know, so I'm not sure what the letter and number designation means. From what I know, Aus8 has similar properties to 440B though with a carbon content of around ~.74%. This is lower content then most other blade steels meaning it has lower edge retention. The stainless steels I'd consider to be best are: Ats-34: Less corrosion resistant then 440c, but is tougher then 440c and still holds a edge quite well 440c: Probably the best all around steel on the market for its price. Highest corrosion resistance and very good edge retention. I wouldn't recommend it on choppers though, a tougher steel like the one mentioned above would probably be better for that. A/B/C indicates the carbon content going from least to greatest. 4xx indicates that its a chrome martensitic steel. 40 indicates that its a high carbon grade compared to (4)20 which has less then .5 percent. CpmS30v: Slightly lower corrosion resistance then 440c due to it not taking a mirror finish, but very high edge retention and improved toughness. Cpm indicates that it's made by compressed particle metallurgy while the v indicates that its a vanadium alloy. I'm not sure what the S30 indicates.
- Q: How are steel coils protected from extreme weather conditions?
- Steel coils are typically protected from extreme weather conditions using various methods such as covering them with waterproof wraps, storing them in climate-controlled warehouses, or applying anti-corrosion coatings. These measures ensure that the coils are shielded from moisture, temperature fluctuations, and other environmental factors that could potentially damage or degrade the steel.
- Q: Can steel coils be stored in unheated warehouses?
- Yes, steel coils can be stored in unheated warehouses as long as proper precautions are taken to protect them from moisture, condensation, and extreme temperature fluctuations.
- Q: What are the different methods of forming steel coils into sheets?
- Steel coils can be formed into sheets using various methods, each having its own benefits and uses. 1. The most commonly employed technique is hot rolling. This involves heating the steel above its recrystallization temperature and passing it through rollers. The rollers apply pressure to reduce the thickness of the steel and elongate it into a sheet. Hot rolling yields smooth sheets suitable for a wide range of applications. 2. Cold rolling, on the other hand, does not require heating the steel. Instead, the steel coil is passed through rollers at room temperature. This process results in sheets with higher dimensional accuracy and a smoother surface finish. Cold-rolled sheets are ideal for applications requiring precise dimensions and a polished appearance, such as automotive body panels and appliances. 3. Annealing and pickling is a method that involves subjecting the steel coil to a heat treatment process called annealing, followed by pickling. Annealing entails heating the steel to a specific temperature and then slowly cooling it to relieve stress and enhance its mechanical properties. Pickling involves removing impurities and scale from the steel surface. These steps are typically performed before hot or cold rolling to ensure a high-quality end product. 4. Galvanizing is a process where steel sheets are coated with a layer of zinc to protect against corrosion. The steel coil is first cleaned and then immersed in molten zinc. The zinc adheres to the steel, forming a protective layer that prevents rust and corrosion. Galvanized sheets find common use in construction, automotive manufacturing, and electrical appliances. 5. Electro-galvanizing is similar to galvanizing, but instead of immersing the steel coil in molten zinc, an electric current is used to deposit zinc onto the steel surface. Electro-galvanizing provides similar corrosion resistance to traditional galvanizing but with a thinner coating. It is often favored for applications requiring thinner and more lightweight sheets. In conclusion, the formation of steel coils into sheets can be achieved through various methods such as hot rolling, cold rolling, annealing and pickling, galvanizing, and electro-galvanizing. Each method offers distinct advantages and is suitable for specific applications based on factors like surface finish, dimensional accuracy, and corrosion resistance.
- Q: What are the cost considerations when purchasing steel coils?
- When buying steel coils, there are several factors to consider regarding cost. To begin with, the price per unit of steel coil is a significant consideration. The cost of steel coils can vary depending on factors such as the type of steel, grade, thickness, width, and length. Higher-grade steel coils tend to be more expensive than lower-grade ones, and thicker or wider coils can also come at a higher cost. Another cost consideration is the quantity of steel coils required. Purchasing larger quantities often comes with volume discounts, so it is important to determine the necessary quantity and assess whether it is more cost-effective to buy in bulk or smaller batches based on demand and storage capacity. Transportation costs should also be taken into account. The weight and size of the coils can impact shipping costs, especially for long-distance transportation. Additionally, the distance between the supplier and the buyer can affect freight charges, so it is crucial to evaluate different shipping options and choose the most cost-effective method. Furthermore, it is essential to consider any additional costs associated with processing or customizing the steel coils. For example, if the coils need to be cut, leveled, or coated, these extra services can add to the overall cost. Obtaining quotes from different suppliers and comparing prices for these value-added services is important. Lastly, the overall quality and reliability of the steel coils must be taken into consideration. Although cheaper options may seem more cost-effective initially, they may end up costing more in the long run if they do not meet required standards or have a shorter lifespan. Choosing reputable suppliers with a history of delivering high-quality products is advisable to ensure that the investment in steel coils is worthwhile. In conclusion, the cost considerations when purchasing steel coils include the price per unit, quantity discounts, transportation costs, additional processing services, and the overall quality and reliability of the coils. Thoroughly evaluating these factors will help make an informed decision that balances cost-effectiveness with the desired quality and specifications of the steel coils.
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HDGI/GI Hot-Dipped Galvanized Steel Sheet in Coil/GI Coil/G550/G90
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 500 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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