Cold rolled steel coils and sheets System 1

Cold rolled steel coils and sheets

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 5000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Quick Details

Standard:	AISI,ASTM,DIN,GB,JIS,JIS G3302 ASTM 653M EN10142	Grade:	Q195~Q345	Thickness:	0.16mm~1.5mm,0.16-1.5mm
Place of Origin:		Brand Name:		Model Number:	Hot dipped zinc coating
Type:	Steel Coil	Technique:	Hot Rolled	Surface Treatment:	Coated
Application:	building and constructions	Special Use:	High-strength Steel Plate	Width:	1250,600-1250mm
Length:	as required	Zinc Coating:	30-275g/ m2	Package:	standard seaworthy export packing or as required
Delivery Time:	Within 20 days after the deposit	Coil weight::	3-12 MT	Coil ID:	508/610mm
FOB:	780-920	MOQ:	50 Tons

Packaging & Delivery

Packaging Detail:	standard seaworthy export package
Delivery Detail:	5-15days after recevied your L/c or T/T

Specifications

Thickness: 0.12-1.5mm
Coil width:600-1250mm
One weight: 2.0-6.0MT
Surface finish : 30-275g/m2 zinc

Description	Prepainted color coated steel coil
Executive Standard:	JIS G3302, SGCC / ASTM 653M CQ/ EN10142 DX51D+Z
Material	CGCC, CGCH ,CGC340-CGC570, CGCD1-CGCD3
Thickness	0.16-1.5mm
Sizes	Width	600-1250mm
	Coil ID	508/610mm
	Coil weight:	3-12 MT
Zinc Coating	30-275g/ m2
Color:	RAL No. or customers' sample color
Painting	Topside: 5microns primer+15microns polyester, Backside: 5-7microns primer epoxy
Price	USD780-840/Mt
Payment Term	1) Payment term : T/T ;L/C;D/P 2) Trade Terms : FOB / CFR /CIF 3) Minimum quantity of order : 5 MT
Package	standard seaworthy export packing or as required
Delivery Time	Within 20 days after the deposit
Application	office furniture, household electric appliances, food package
Trademark:
Origin:	China
Contacts
Export Markets:	North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Q: Are steel coils affected by magnetic fields?: Magnetic fields can indeed have an impact on steel coils. Steel, being a ferromagnetic material, has the ability to be magnetized or attracted to magnets. When a steel coil is subjected to a magnetic field, it can develop its own magnetic field, resulting in magnetization. The consequences of this magnetization depend on the strength and duration of the magnetic field. In situations where the magnetic field is strong and the coil remains exposed to it for a considerable period, the steel coil may retain some magnetism even after the magnetic field is no longer present. This can create difficulties in certain applications that call for a non-magnetic material, as the magnetized steel coil may attract or disrupt nearby objects. Conversely, if the magnetic field experiences frequent changes or fluctuations, it can induce electrical currents within the steel coil through a process called electromagnetic induction. These currents, known as eddy currents, can generate heat within the coil. This heat can lead to energy losses and potentially damage the coil. Therefore, it is vital to carefully consider the impact of magnetic fields on steel coils in various applications. Protective measures, such as shielding or demagnetization processes, may be necessary to minimize the consequences of magnetic fields on steel coils, when deemed necessary.

Q: Procedures for sharpening a knife with the stone and the steel?: The site listed above gives you a great step by step procedure on how to do this yourself. A Sharpening Steel is used to sharpen the fine edge of a knife. Many knives only need this done to have a refined edge. Any fine edge of a knife can have minor burrs that occur with normal use. To sharpen this type of edge, merely run the knife at an approximate 7-8 degree angle, away from yourself on the Sharpening steel repeatedly (no more than about 8-10 times each side, alternating each side as you go). Give the knife a quick wash, to remove any unwanted detritus, and you are ready to go. If you want to resharpen an entire knife, use a wet stone. Remember some stones have a natural oil in it, some do not. If you are already using a stone with oil, continue to use it with Mineral Oil as the lubricant. If it is a dry stone, use warm water. You'll never be able to change a stone once you use oil. Make sure its as flat as you can. Wet it with warm water, or the mineral oil, rub the knife away from yourself (on the coarse side) at a 5 degree angle on both sides. Alternating sides approximately 20-30 times each. Flip the stone over (dry finer side), and at a 6 degree angle, rub the knife blade toward you on both sides approximately 10 times on each side. Using either your Sharpening steel, or 550-600 coarse emory paper, rub the knife away from you 5-7 alternating times on each side at about a 7-8 degree angle. Clean the knife well. You now have a VERY sharp knife that will require this entire treatment ony 2-4 times a year at most. Otherwise, keep using the sharpening steel. I GUARANTEE this works best.

Q: What are the common methods of forming steel coils?: There are several common methods for forming steel coils, each with its own unique advantages and applications. The most common method is known as hot rolling. This involves heating a large steel slab to a high temperature and passing it through a series of rollers to reduce its thickness. The steel is then coiled into a large, continuous roll. Hot rolling is typically used for producing steel coils with a consistent thickness and a smooth surface finish. It is commonly used in industries such as automotive, construction, and manufacturing. Another method is cold rolling, which is similar to hot rolling but is performed at room temperature. Cold rolling involves passing the steel through a set of rollers to further reduce its thickness and improve its surface finish. This process is often used to produce steel coils with precise dimensions and excellent mechanical properties. Cold-rolled steel coils are commonly used in applications that require high strength, such as in the production of appliances, electrical components, and structural components. A third method is known as galvanizing. This involves coating the steel coil with a layer of zinc to protect it from corrosion. The steel coil is first cleaned and then immersed in a bath of molten zinc. The zinc adheres to the surface of the steel, forming a protective layer. Galvanized steel coils are widely used in outdoor applications, such as roofing, fencing, and automotive parts, due to their excellent corrosion resistance. Lastly, there is the electro-galvanizing method. This process involves applying a thin layer of zinc to the surface of the steel coil through an electroplating process. The steel coil is immersed in an electrolyte solution and an electric current is passed through it, causing the zinc to deposit onto the surface of the steel. Electro-galvanized steel coils are commonly used in industries that require a smooth and aesthetically pleasing finish, such as in the production of appliances, automotive parts, and decorative items. Overall, these common methods of forming steel coils provide a wide range of options for different applications and requirements. Whether it is hot rolling, cold rolling, galvanizing, or electro-galvanizing, each method offers unique benefits in terms of strength, durability, surface finish, and corrosion resistance.

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.: Mild steel is a solution of carbon within iron, etc. When the steel is very hot the carbon is well distributed. As the steel is cooled iron crystals form excluding the carbon that will then collect at the boundaries (grain boundaries) between iron crystals. If cooling is rapid at any point in the cool down crystal growth will cease (affecting final grain size and the mix of carbon and iron at the grain boundaries). The ductility or hardness of the resulting steel will be determined by the grain sizes and makeup of the carbon/iron mix between grains. Ductile iron permits 'slabs' of iron to slip past each other within iron crystals and location of carbon atoms may help prevent slip resulting in hardness. Therefore, heat treatment usually consists of 'soaking' the steel at a temperature high enough to dissolve all the carbon uniformly then cooling it down slowly or rapidly to obtain optimum grain size and interstitial carbon between grains to obtain desired properties.

Q: What are the challenges in coil blanking for high-strength steel?: Coil blanking for high-strength steel presents several hurdles due to the unique properties of this material. One of the main obstacles lies in the steel's high tensile strength, which makes cutting and blanking more difficult when compared to traditional steel grades. High-strength steel is typically harder and less malleable, resulting in heightened tool wear and greater cutting forces. Therefore, specialized cutting tools capable of enduring these extreme conditions are necessary. Additionally, the augmented cutting forces can cause increased vibrations, potentially impacting the accuracy and quality of the blanks. Another challenge arises from the spring-back effect displayed by high-strength steel after it is cut. This means that the material tends to return to its original shape, creating difficulties in achieving precise dimensions and tolerances in the blanks. Consequently, careful consideration and adjustment of the cutting parameters are required to minimize the spring-back effect. Furthermore, high-strength steel often contains a higher carbon content, leading to increased work hardening during the blanking process. As a result, the material becomes even harder and more brittle, making it more susceptible to cracks and fractures. To overcome this challenge, proper lubrication and cooling techniques are crucial in reducing heat buildup and minimizing the risk of cracking. Additionally, the heightened strength of the steel can also impact overall production efficiency. The increased cutting forces and tool wear may necessitate a reduction in cutting speeds, resulting in longer processing times. This can affect the productivity and throughput of the coil blanking process, requiring meticulous optimization and planning. In conclusion, the challenges involved in coil blanking for high-strength steel encompass increased cutting forces, tool wear, the spring-back effect, work hardening, and reduced production efficiency. Overcoming these challenges necessitates the use of specialized cutting tools, precise cutting parameters, proper lubrication and cooling techniques, and meticulous optimization of the production process.

Q: can anyone tell me the way to bring back the shine to the stainless steel kitchen sink . It has become dull.: these stainless steel are easy clean and polish so you can purchase online these website given as below: www.gecanderson .uk/product/made-to-measure/shelving/

Q: How are steel coils annealed to improve their properties?: Steel coils are annealed to improve their properties through a process called annealing, which involves heating the coils to a specific temperature and then slowly cooling them. This process helps to relieve internal stresses, enhance ductility and toughness, and refine the grain structure of the steel, resulting in improved mechanical properties such as increased strength and reduced brittleness.

Q: How do you prevent damage to steel coils during transportation?: To prevent damage to steel coils during transportation, several measures can be taken: 1. Proper packing and securing: Steel coils should be packed tightly and securely in order to prevent any movement or shifting during transportation. This can be achieved by using appropriate packaging materials such as steel cradles, wooden dunnage, or steel straps to hold the coils in place. 2. Cushioning and padding: Adding cushioning materials such as foam padding, cardboard, or bubble wrap between coils can help absorb shocks and vibrations during transit. This extra layer of protection minimizes the risk of scratches, dents, or other damages caused by contact with other objects or surfaces. 3. Adequate handling and loading: Using proper lifting equipment and techniques is crucial to avoid mishandling and dropping of the steel coils. Forklifts or cranes should be used to lift and load the coils carefully onto transportation vehicles. Additionally, coils should be stacked in a way that distributes weight evenly to maintain stability. 4. Weather protection: Steel coils are susceptible to corrosion, so it is essential to protect them from moisture and adverse weather conditions during transportation. Coils should be covered with waterproof and weather-resistant tarps or shrink wrap to prevent water or moisture from reaching the steel surfaces. 5. Regular inspections: Regularly inspecting the coils before, during, and after transportation is vital to identify any potential damage or issues. This allows for timely intervention to rectify any problems and prevent further damage. 6. Properly trained personnel: Ensuring that personnel involved in handling, loading, and transporting the steel coils are adequately trained is crucial. They should be aware of the proper procedures and techniques to safely handle and transport the coils, minimizing the risk of damage. By implementing these preventative measures, the risk of damage to steel coils during transportation can be significantly reduced, ensuring that the coils reach their destination in optimal condition.

Q: Theirs this two handed chinese sword on amazon with a forged combat steel blade and i was wandering if it means combat steel in the same sense that tempered carbon steel can be used?: Great answer by JayDub. Amazon isn't exactly a great site for legitimate sword shopping. Look for legitimate retailers specializing in handmade swords.

Q: I have taylormade burner steel irons and I was wondering what would the flex of steel be if you were to compare it to graphite shafts, like regular, stiff, super stiff, etc...THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!: If i understand you correctly, i think you misunderstand shafts. Steel shafts vs. graphite shafts these days is more of a competition of weights, not flexibility. Both steel and Graphite have different flex profiles available from Ladies (L) to super stiff (X). Graphite may feel a little more whippy than steel because of the lighter weight. Shafts will vary by company as well. Stiff from True temper may not be as stiff as one from Aldila, or vice verse. You can also make a shaft play stiffer or more flexible by where you cut the length. This is called tipping. Take more from the bottom and it will be stiffer, more from the grip end and it will play more flexible.

Send your message to us

*Email

*TEL

*Quantity

*Unit