Hight Quality of Cold Rolled Steel Sheet of China

Hight Quality of Cold Rolled Steel Sheet of China System 1

Hight Quality of Cold Rolled Steel Sheet of China

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 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

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

Hight Quality of Cold Rolled Steel Sheet of China

4.Cold Rolled Steel Specification

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

Grade: Q195~Q345

Thickness: 0.16mm~1.5mm,0.16-1.5mm

Width: 1250,600-1250mm

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:How are steel coils inspected for surface defects using non-destructive testing methods?: Steel coils are inspected for surface defects using non-destructive testing (NDT) methods to ensure their quality and integrity. There are several common NDT methods employed in this process. One of the most widely used methods is visual inspection, where trained inspectors visually examine the surface of the steel coils for any visible defects such as scratches, cracks, pits, or corrosion. This method is relatively simple and cost-effective but is limited to detecting only surface-level defects. Another commonly used NDT method is magnetic particle testing (MT). This method utilizes the principles of magnetism to identify surface and near-surface defects in ferromagnetic materials like steel. A magnetic field is applied to the steel coil, and iron particles are applied to the surface. If there is a defect, such as a crack or discontinuity, the iron particles will concentrate around it, making the defect visible to the inspector. Liquid penetrant testing (PT) is another NDT method used to inspect steel coils for surface defects. In this method, a liquid penetrant is applied to the surface of the coil. The penetrant is drawn into any surface defects by capillary action. After a certain period, excess penetrant is removed, and a developer is applied. The developer draws out the penetrant from any defects, making them visible to the inspector. Ultrasonic testing (UT) is a widely used NDT method that can detect both surface and subsurface defects in steel coils. High-frequency sound waves are transmitted into the steel coil, and the reflected waves are analyzed to identify any abnormalities. This method can detect defects such as cracks, inclusions, and voids that may not be visible to the naked eye. Additionally, eddy current testing (ECT) is another NDT method used for inspecting steel coils. This method utilizes electromagnetic induction to detect surface and near-surface defects. A coil carrying an alternating current is placed near the surface of the coil being inspected. Any changes in the coil's electrical conductivity caused by surface defects are detected and analyzed, allowing the inspector to identify and evaluate the severity of the defects. In conclusion, steel coils are inspected for surface defects using various non-destructive testing methods such as visual inspection, magnetic particle testing, liquid penetrant testing, ultrasonic testing, and eddy current testing. These methods ensure the quality and integrity of the steel coils before they are used in various applications.

Q:I am working on a hydrogen generator, but the stainless steel I am using corrodes and turns the water brown. Can anyone tell me if there is stainless steel that does not corrode, and if so, what is it called and where can I get some.Thank you.: Maybe okorder Hope this can help you.

Q:Is it possible that stainless steel watches get rust. Any experience? Thanks.: Stainless can oxidize over time but it doesn't look much like regular rust. Depending on the exact composition of the stainless alloy in question and what other materials are in contact with it, that's more or less of an issue. In constant contact with skin oils and gentle polishing from contact with skin and clothing, watches rarely rust regardless of what they're made of, I think you have nothing to worry about. Note: for future reference, bleach is absolute hell on stainless. It's bad enough on steel, worse on stainless. Especially because you have this idea that stainless is more or less impervious, when in reality it just isn't.

Q:Can steel coils be coated with QR codes?: Yes, steel coils can be coated with QR codes.

Q:How are steel coils used in the production of metal doors and windows?: Steel coils are an essential component in the production of metal doors and windows. These coils are typically made from high-quality steel and serve as the primary raw material for manufacturing these products. The first step in utilizing steel coils is the process of uncoiling. The coils are unwound and fed into a machine known as a roll former. This machine carefully shapes the steel into the desired profile for the door or window frame. The steel is typically cut to the required length before being fed into the roll former. Once the steel has been shaped, it is then sent through a series of additional manufacturing processes. These processes may include punching holes for hardware installation, bending the steel to create specific angles or curves, and welding different sections together to form a complete frame. The steel coils provide the necessary structural integrity and durability required for these processes. Furthermore, steel coils also play a crucial role in enhancing the aesthetic appeal of metal doors and windows. They can be coated with various finishes, such as galvanized or powder-coated, to provide protection against corrosion and improve the overall appearance of the final product. These coatings not only add a layer of durability but also allow for customization to match different architectural styles and design preferences. In summary, steel coils are the foundational material used in the production of metal doors and windows. They are shaped, cut, and processed to create the necessary components for these products. Additionally, steel coils can be coated to enhance their durability and aesthetic appeal. Ultimately, these coils contribute significantly to the strength, durability, and overall quality of metal doors and windows.

Q:How are steel coils inspected for uniformity using statistical analysis?: Various techniques and procedures can be employed to inspect steel coils for uniformity using statistical analysis. The primary goal is to guarantee that the coils meet the required specifications and exhibit consistent quality throughout. One prevalent inspection method involves obtaining a representative sample of steel coils from a batch or production run. These coils are selected randomly to ensure a fair representation of the entire batch. Statistical analysis is then conducted on this sample to assess the uniformity of the coils. The initial step entails measuring various physical properties of the coils, such as thickness, width, weight, and surface defects. These measurements are recorded for each coil in the sample. The collected data is subsequently subjected to statistical analysis, encompassing mean, standard deviation, and range calculations. By calculating the mean values of the measured properties, one can determine the average values for thickness, width, weight, etc. These mean values can be compared to the desired specifications to identify any deviations or inconsistencies. The standard deviation serves as an indicator of the variability or dispersion of the data, revealing the degree to which the coils adhere to the desired specifications. A smaller standard deviation denotes greater uniformity. Furthermore, range calculations can be executed to ascertain the difference between the maximum and minimum values of the measured properties within the sample. A smaller range implies a higher level of uniformity. Statistical analysis can also incorporate the use of control charts, such as X-bar and R-charts, to visually track the variation in the measured properties over time. These charts offer a graphical representation of the data, facilitating the identification of any trends or out-of-control conditions. In summary, statistical analysis provides a systematic approach to evaluating the uniformity of steel coils by providing objective measurements and statistical indicators. By analyzing the collected data, manufacturers can detect any deviations from the desired specifications and implement appropriate corrective measures to ensure consistent quality throughout the production process.

Q:How are steel coils used in the production of electronic devices?: Steel coils are used in the production of electronic devices in a variety of ways. One common use is in the manufacturing of transformers and inductors, which are crucial components in many electronic devices. Transformers and inductors consist of a coil of wire wound around a core, and steel coils are often used as the core material due to their magnetic properties. The steel coils used in these components help to enhance the magnetic fields generated by the coils, enabling efficient energy transfer and voltage regulation. The magnetic properties of steel, such as its high permeability and low hysteresis loss, make it an ideal material for these applications. Additionally, steel coils are also used in the production of printed circuit boards (PCBs). PCBs are the backbone of most electronic devices and consist of a flat board made of non-conductive material, such as fiberglass, with a thin layer of copper traces etched onto it. These copper traces form the electrical connections between various components on the board. Steel coils are used in the production of PCBs as part of the fabrication process. They are typically used to create the stencils that are used to apply solder paste onto the board before component placement. The steel coils are laser-cut to create precise stencil patterns, allowing for accurate and consistent solder paste application. In summary, steel coils play a vital role in the production of electronic devices. They are used in the manufacturing of transformers and inductors, where their magnetic properties enhance energy transfer and voltage regulation. Steel coils are also utilized in the fabrication of PCBs, where they are used to create stencils for solder paste application. Overall, the use of steel coils helps ensure the efficient and reliable operation of electronic devices.

Q:Can steel coils be coated with magnetic materials?: Yes, steel coils can be coated with magnetic materials. The coating process typically involves applying a thin layer of magnetic material, such as nickel or zinc, to the surface of the steel coils. This coating enhances the magnetic properties of the steel, making it more suitable for specific applications that require magnetism.

Q:Climbing ropes used by mountaineers are usually made of nylon. Would steel cable of equal strength as the nylon be just as good? What advantages and disadvantages would it have compared to the nylon?: steel is NOT as flexible and much slipperier if you fall the nylon stretches to slow the victim but a steel cable would stop short and kill you

Q:Im looking to learn guitar and i was wondering if steel strings are too hard to use as a beginner. I am also self teaching so any good lesson books/starting guitar recommendations are welcome !! thanks.: Steel strings are fine for a beginner. I learned to play on Steel strings and I have always preferred them to nylon strings.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range