Cold Rolled Steel Coil for the Building JIS G 3302

Cold Rolled Steel Coil for the Building JIS G 3302 System 1

Cold Rolled Steel Coil for the Building JIS G 3302

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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Cold Rolled Steel Coil for the Building JIS G 3302

1.Structure of Cold Rolled Steel Description：

The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling continuous rolling, degreasing, annealing,skin pass,slitting and cut to length line etc. Along with it many kinds of new technology and new process of global cold rolling production have been applied. Therefore the quality of the goods could be guaranteed. The product is widely used in outdoor and interior decoration, furnishing manufacturing, home appliance, automobile etc.

2.Main Features of the Cold Rolled Steel：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Cold Rolled Steel Images

Cold Rolled Steel Coil for the Building JIS G 3302

4.Cold Rolled Steel Specification

Standard:AISI,ASTM,DIN,GB,JIS,JIS G3302 ASTM 653M EN10142

Grade: Q195~Q345

Thickness: 0.16mm~2.0mm

Width: 1250mm MAX

Coil weight:3-12 MT

Coil ID:508/610mm

Chemical composition:

0.150

0.476

11.231

12.50

0.900

0.039

0.010

5.FAQ of Cold Rolled Steel

We have organized several common questions for our clients，may help you sincerely：

1.How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.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.

3. 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.

Q: What is the maximum temperature that steel coils can withstand?: The maximum temperature that steel coils can withstand depends on the specific grade and type of steel being used. However, in general, steel coils can withstand temperatures up to around 1,300 to 1,500 degrees Celsius (2,372 to 2,732 degrees Fahrenheit) before they start to lose their structural integrity and develop deformation or other forms of damage.

Q: How are steel coils secured during transportation?: Steel coils are typically secured during transportation using metal bands or straps, which are tightly fastened around the coils to prevent them from shifting or falling off. Additionally, wooden blocks or dunnage may be used to provide stability and prevent movement within the transportation container.

Q: How are steel coils inspected for dimensional accuracy after processing?: Steel coils are inspected for dimensional accuracy after processing using various methods, such as manual measurement with precision tools, laser scanning technology, or automated vision systems. These inspection methods ensure that the dimensions of the steel coils meet the required specifications and tolerances, ensuring their quality and suitability for the intended applications.

Q: What are the different methods of testing steel coils for quality control?: Steel coils undergo various methods for quality control testing to ensure they meet the necessary specifications and standards. These methods encompass visual inspection, dimensional measurement, hardness testing, tensile strength testing, chemical analysis, coating thickness measurement, surface roughness measurement, ultrasonic testing, and magnetic particle inspection. Visual inspection is the most fundamental technique, involving a thorough examination of the coils for surface defects like scratches, dents, or irregularities. This method enables the identification of visible defects in the material. Dimensional measurement, on the other hand, utilizes tools such as calipers, micrometers, or laser measuring devices to evaluate the dimensions of the steel coils. The measurements are compared against specified tolerances to ensure they meet the required standards. To assess the resistance of the steel coils to indentation or penetration, hardness testing is performed. This examination helps evaluate the material's strength and durability. Common hardness testing methods include Rockwell, Brinell, and Vickers hardness tests. Tensile strength testing measures the maximum tensile stress a steel coil can endure before breaking or deforming. This test helps determine the material's strength, elasticity, and compliance with the required specifications. Chemical analysis is crucial in testing the composition of the steel coils to verify the presence of specific elements in the desired amounts. This ensures that the coils are made from the correct grade of steel and comply with the required chemical composition standards. In cases where the steel coils have a protective coating, it is vital to measure the thickness of the coating. Non-destructive testing methods like magnetic induction or eddy current testing are typically employed for this purpose. The coating thickness is compared against the specified requirements to ensure it provides adequate protection. Surface roughness testing evaluates the smoothness or roughness of the steel coil's surface using instruments like profilometers or roughness testers. This testing method guarantees that the coils meet the required surface finish standards. Ultrasonic testing utilizes high-frequency sound waves to detect internal defects like cracks, voids, or inclusions within the steel coils. This non-destructive testing method provides valuable information about the structural integrity of the coil. Magnetic particle inspection is employed to identify surface and near-surface defects in steel coils. By applying magnetic particles to the surface and detecting any magnetic leakage caused by defects using magnetic sensors, this technique effectively detects cracks and other surface abnormalities. By combining these testing methods, manufacturers ensure that the steel coils produced meet the necessary quality standards and are suitable for their intended applications.

Q: I am currently writing a manuscript, and would like to know whether guns made out of steel, burn or melt when exposed to flames. Thanks.: Steel melts around 2500°F (1370°C). That's hotter than most normal fires (obviously, your steel pots don't melt on the stove, do they?) but a blowtorch or something like that could do it.

Q: Could someone please explain what happens when steel is heat treated and why these happenings cause the steel to become harder? Please dig down into the micro details of the crystallites but in somewhat laymen's terms. Also describe the processes which achieve these results; if you have the time. Thanks for your time and effort.: Alright, usually whu heat you heat treat mild steel, this is because you would like it stronger than you got it. To do this you must alter the grain structure of the part or in other words, the CRYSTALLITES. Ultimately you'll end up altering the nature of the grains structure changing the tensile strength it can handle, yield strength, and even change the elongation percentage that it can tolerate under load. Heat treatment controls the rate of diffusion, and the rate of cooling within the microstructure to create these elements. Usually what they use to do this is add an element to it to make it stronger such as carbon to increase its rockwell hardness, which by the way the lower you go the harder the part can become. Heat treatment can be used in more ways than this. It can also be used to weaken the parts grain structure. This will lower the parts mechanical properties making it softer and more ductile or easier to manipulate if you have to bend it into a particular shape. Typically if you allow the part to cool after heat treatment it does go through annealing. The part will be heat treated into different stages. The first being the austenitic crystal phase which depending on how hard and strong you want it, will be at its peak. When it is cooled, it will go through a will transform to martensite which is a hard yet brittle crystalline structure. Martenised part will usually be tempered to a certain degree to improve the mechanical properties to what is needed. There is more to this and you can use the link below to read more about it.

Q: I heard that titanium isn't the most hypoallergenic metal because it is treated and the chemicals can cause an allergic reaction. I also heard that surgical steel is the best because it is what is used in surgery and in hip replacement implants etc. Is this correct?I've always heard that titanium is best, but now I'm curious because surgical steel is much cheaper than titanium which can be expensive.Thanks: There is a lot of debate in the piercing community about guns vs. needles. In my opinion, needle piercing from a reputable piercing shop is the best choice. This is because guns can harbor a lot of bacteria, especially if they are used on more than one person which they often are. Yes, guns are fast and efficient, but they can be unsafe at times. My first lobe holes were done with a gun. I cried forever because it burned so bad...even after days. They lady was so impersonal, and they used sterling silver which I found out that day I was allergic to. My other 4 holes are were done with a needle. I had trouble healing them because I used sterling silver (my stupid fault), but besides the allergy, they healed beautifully and were virtually pain free. I would recommend getting them pierced at an actual shop, not the mall. If I were you, I would chose niobium metal or titanium to avoid any type of allergy that could happen. Choose studs and not rings because they are easier to heal. Good luck!

Q: is cold roll or hot roll mill roller is cast steel? or cast iron?: Casting is a process of forming a part just like forging or rolling are also processes of forming steel. Cast steel can be any grade of steel poured into a sand mold to form a part like a water pump housing in your car. To be classified as steel, the mixture usually contains less than 2% carbon. Cast iron is a mixture that generally contains more than 2% carbon. It also can be poured into a sand mold. There are many grades of iron. Many metals can be cast into shapes like the air intake plenum on your car is probably cast aluminum. Bronze statues are made by pouring molten bronze into a mold. The process used to create a part has an effect of that part's mechanical properties. A casting is weaker than a forging but certain parts cannot be formed by forging. The large diameter rolls used in steel mills to roll steel into thinner plates or sheets is a hot rolled steel that has probably been forged into shape then machined into the final diameter. Some rolls are fabricated from hot rolled steel plates into shape. This allows the ability to add internal cooling paths to keep the roll from overheating.

Q: What are the different types of steel coil handling equipment?: There are several types of steel coil handling equipment, including coil cars, coil tongs, coil lifters, coil upenders, coil grabbers, and coil transfer cars. These equipment are specifically designed to safely transport, lift, rotate, and transfer steel coils in various industrial settings.

Q: Can one assume that stainless steel that can be hardened is magnetic?: Most of the 300 series stainless metals are not magnetic, but if it is cast, it is magnetic. Welds are considered casting, so the welds are magnetic even though the items that are welded together are not. The 400 series stainless may have a few types that are magnetic. I suppose generally the hardenable factor has a bearing if you consider that 400 series can be hardened more readily than the 300 series. Source: Working in metal fabrication shops.

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