Hot Rolled Steel Coils with Standard ASTM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 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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Rolled to its final dimensions while it’s hot enough to scale, our hot-rolled steel is an amalgamation of the various qualities of steel.
It can be in the form of plates, sheets and coils.
Our hot rolled steel sheets and coils are applied to wide range of uses such as automobile, electrical appliance, machinery manufacturing, container manufacturing, shipbuilding bridge, pipeline, and receive high acclaim from our customers for its excellent quality.
Specification of Hot Rolled Steel Coils with Standard ASTM
Standard:ASTM, JIS, GB
Steel Grade:Q235
Technique:Hot Rolled
Packing:in Bundles or Coils
STANDARD & GRADE
APPLICATION
Automobile, Electrical Appliance, Machinery, Transport Equipment, Steel Structure, Pressure Vassel Tank, Welded Pipe, Bridge, Container Shipbuilding.
FAQ:
1. What is the minimum order quantity ?
Our MOQ is 50mt for each size.
And we will consider to give more discount if you make big order like 1000 tons and more.
Further more, the more appropriate payment term your offer the better price we can provide.
2. How long can we receive the product after purchase?
Usually within thirty working days after receiving buyer’s advance payment or LC.
We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.
3. How to guarantee the quality of the products？
We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;
We resolutely put an end to unqualified products flowing into the market.
At the same time, we will provide necessary follow-up service assurance.
4.What is the validity of your quotation?
Normally 7 days.
5.What is your advantage?
24 hour quick response /Customer oriented/ Credit foremost/ Top quality Excellent
- Q:How are steel coils used in the production of power transmission towers?
- Steel coils are used in the production of power transmission towers because they provide the necessary strength and structural integrity required to support the transmission lines. The coils are formed into various sections and welded together to create the tower's framework, ensuring it can withstand the weight of the cables and withstand external forces such as wind and seismic activity.
- Q:How are steel coils used in the manufacturing of shipping containers?
- Steel coils are used in the manufacturing of shipping containers as they are rolled into sheets, which are then cut and welded to create the walls, roof, and floor of the container. The high strength and durability of steel coils ensure that the shipping containers can withstand the rigors of transportation, protecting the goods inside.
- Q:What are the cost considerations when purchasing steel coils?
- When purchasing steel coils, there are several cost considerations that need to be taken into account. Firstly, the price per unit of steel coil is a significant factor. The cost of steel coils can vary depending on various factors such as the type of steel, its 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 needed. Purchasing larger quantities of steel coils often comes with volume discounts, so it is important to determine the required quantity and assess whether it is more cost-effective to buy in bulk or in smaller batches based on the demand and storage capacity. Transportation costs should also be considered when purchasing steel coils. The weight and size of the coils can impact the shipping costs, especially if they need to be transported over long distances. 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 take into account any additional costs associated with processing or customizing the steel coils. For instance, if the coils need to be cut, leveled, or coated, these additional services can add to the overall cost. It is important to obtain quotes from different suppliers and compare the prices for these value-added services. Lastly, it is crucial to consider the overall quality and reliability of the steel coils. While cheaper options may initially seem more cost-effective, they could end up costing more in the long run if they do not meet the required standards or have a shorter lifespan. It is advisable to choose reputable suppliers with a track record of delivering high-quality products 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. Evaluating these factors thoroughly will help make an informed decision that balances cost-effectiveness with the desired quality and specifications of the steel coils.
- Q:What are the different methods of surface inspection for steel coils?
- There are several different methods of surface inspection for steel coils, each with its own advantages and limitations. Some of the most commonly used methods include: 1. Visual Inspection: This is the simplest and most basic method, where an inspector visually examines the surface of the steel coils for any defects such as scratches, dents, or discoloration. While this method is subjective and dependent on the skill and experience of the inspector, it can be a cost-effective option for detecting obvious surface defects. 2. Magnetic Particle Inspection (MPI): This method involves applying a magnetic field to the steel coil and then applying iron particles on the surface. Any defects or cracks in the surface will disrupt the magnetic field, causing the particles to gather at those areas and making the defects visible. MPI is particularly useful for detecting surface cracks and defects that may not be easily visible to the naked eye. 3. Eddy Current Testing (ECT): ECT is a non-destructive testing method that uses electromagnetic induction to detect surface defects on steel coils. A probe with a coil is placed near the surface of the coil, generating an alternating magnetic field. Any changes in the electrical conductivity or magnetic permeability of the steel due to surface defects will cause a change in the induced current, which can be detected and analyzed. ECT is effective for detecting cracks, corrosion, or other surface irregularities. 4. Ultrasonic Testing (UT): This method uses high-frequency sound waves to inspect the surface and subsurface of steel coils. A transducer sends ultrasonic waves into the steel, and the reflected waves are analyzed to detect any changes or anomalies in the material. UT can identify defects such as cracks, delaminations, or voids within the coil, providing valuable information about the overall structural integrity of the steel. 5. Optical Inspection: This method utilizes advanced imaging techniques, such as cameras or laser scanners, to capture high-resolution images of the surface of steel coils. These images can be analyzed for defects, such as scratches, pits, or other irregularities. Optical inspection can provide detailed information and is often used in conjunction with other methods for a comprehensive inspection. It is important to note that each method has its own limitations and may be better suited for specific types of defects or surface conditions. Therefore, a combination of these methods is often employed to ensure a thorough and accurate inspection of steel coils.
- Q:What are the different types of steel coil surface finish treatments?
- There are several different types of steel coil surface finish treatments, including hot-dip galvanizing, electro-galvanizing, zinc plating, powder coating, and painting. These treatments are applied to steel coils to enhance their durability, corrosion resistance, and aesthetic appeal.
- Q:What are the common uses of stainless steel coils?
- Stainless steel coils are commonly used in various industries such as automotive, construction, manufacturing, and food processing. They are utilized for making a wide range of products including kitchen appliances, metal containers, piping systems, heat exchangers, and architectural components. The high corrosion resistance, durability, and aesthetic appeal of stainless steel make it an ideal material for these applications.
- Q:How are steel coils processed before being used in manufacturing?
- Steel coils undergo several processing steps before they are used in manufacturing. The first step is to uncoil the steel coil, which involves unwinding it from a large spool. This is usually done using a machine called a decoiler. Once the coil is uncoiled, it is inspected for any defects or damages. After inspection, the steel coil goes through a process called leveling. This process involves passing the coil through a series of rollers to remove any unevenness or waviness in the steel. Leveling ensures that the coil has a uniform thickness and flat surface, which is crucial for further processing. The next step is to clean the steel coil to remove any impurities, such as rust, oil, or dirt. This is usually done by running the coil through a cleaning line, where it is treated with chemicals and water sprays. The cleaning process ensures that the surface of the coil is free from contaminants, which can affect the quality of the final product. Once the coil is cleaned, it may undergo additional processes depending on the specific requirements of the manufacturing process. For example, the coil may be annealed to improve its ductility and reduce its hardness. Annealing involves heating the coil to a specific temperature and then slowly cooling it. This process helps to relieve internal stresses and improve the steel's mechanical properties. After all the necessary processing steps are completed, the steel coil is ready to be used in manufacturing. It can be further processed into various shapes and forms, such as sheets, plates, or strips, depending on the specific requirements of the manufacturing process. These processed steel coils are then used in a wide range of industries, including automotive, construction, appliances, and machinery.
- Q:I noticed a friend's appliances are not magnetic, and mine are. Both are stainless steel. Are there two types of stainless steel or something? Thanks
- If the non magnetic one is has a brighter finish it may be that it is a ferritc stainless steel which depends only on high chromium content to keep it stainless,the duller one is likely to be the austenitic type which contains nickel as well as chromium and is usually non or only faintly magnetic and with a dull finish.Chromium rich stainless steels(ferritic and martensitic grades) are designed to be used for cutlery and strength application are always strongly magnetic (quite often permanent magnets).Stainless steels containing at least 18%chromium and 8+% of nickel are designed to be corrosion resistant and weldable,this type of steel(austenitic) is not ferromagnetic in the annealed state but the lower grades do become magnetic after cold work(hammering bending etc.The difference between magnetic grade or not rests in the crystal structure.In the austenitic types the structure is the same as that of gold and copper which is cubic close pack and,in steel,is a non magnetic form;but in low grades cold working can cause some breakdown of the austenite to the magnetic room temperature form of iron known as ferrite.Ferrite has the ordinary body centred body centred cubic form of iron which is magnetic.All of the stainless steels depend upon Chromium to form an anti-corrosion barrier at their surface;but this is only reliable in oxidising conditions(like the open air)They nearly all discolour and even rust if trapped in damp conditions where oxygen potential is low(as under wet plastic or underground ).
- Q:There's this huge community of steelians (steelites?) in my town. Has anybody heard of this Dr. Steel?
- steel okorder thank you for posing this question. all hail dr.steel.
- Q:i am looking for an exact process of how to forge damascus steel.any tips or pointers and web sites or tutoreals will be helpfull.
- hand made folding knife English tip, blade of Damascus metallic sort Rose, 2,5mm thickness, no liners, teja spring embellished by using metallic report and billet surrounded of chrome metallic. A Damascus blade knife is characterised by using a wavy, mottled visual allure on the blade that’s led to by using the approach used to shape the metallic. the technique of transforming into Damascus metallic is derived from a centuries-previous forging technique used to create blades that grew to become very just about mythical of their attractiveness for power and sharpness it exchange into reported a Damascus knife ought to shrink with the aid of a rifle barrel to boot as with the aid of a hair falling on the blade.
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Hot Rolled Steel Coils with Standard ASTM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 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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