Cold Steel Rolled different size/Cold Rolled Steel/

Cold Steel Rolled different size/Cold Rolled Steel/ System 1

Cold Steel Rolled different size/Cold Rolled Steel/

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 10000 m.t./month

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Product Description

The detail specification of cold rolled stainless steel coils are as below:

Grade:	201/202/301/304/304L/316/316L/317L/321/409/409L/410/410S/430/439
Standard:	ASTM,AISI,JIS,EN,DIN,GB
Surface:	2D,2E,2B,2BB,SB,NO.4,BA,HL,6K,7K,8K
Width:	1000mm/1219mm/1250mm/1500mm/1524mm/1829mm/2000mm
Thickness:	0.3mm to 6mm
Edge:	Slit/Mill Edge
Origin:	TISCO,POSCO,LISCO,JISCO,BAOSTEEL,Baoxin,Eastern Special Steel and so on
Productivity:	5000MT/Mont
MOQ:	according to buyer's order
Payment Term:	TT,L/C at sight/, L/C 30,60,90,180 days,WEST UNION
Price Term:	FOB/CFR/CIF Ningbo,Shanghai,Tianjin,Shenzhen Port
Delivery:	7-10 days after receive buyer's advance deposit or LC copy
Packaging:	Seaworthy Export Standard Package.Products are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might otherwise be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.
Detail Application:	construction field;ship building industry;petroleum and chemical industries;war and electricity industries;food processing and medical industry; boiler heat exchanger; machinery and hardware industry

Technical notes:

Surface Finish	Definition	Application
NO.1	The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.	Chemical tank, pipe.
2D	Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment.	Construction Material, heat exchanger,exhaust pipe
2B	Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.	Medical equipment, Food industry, Construction material, Kitchen utensils.
BA	Those processed with bright heat treatment after cold rolling.	Kitchen utensils, Electric equipment, Building construction.
NO.3	Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001.	Kitchen utensils, Building construction.
NO.4	Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.	Kitchen utensils, Building construction, Medical equipment.
HL	Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.	Building Construction.
No.8	A highly reflective finish obtained by polishing with successively finer abrasive and buffing extensively free of grit lines	Indoor decoration & Reflector, Hospital Equipment

Our Advantages
All products are made of high-quality imported raw materials.
Excellent shipment after-sales service & Prompt
The Authorized agent of TISCO,JIISCO,the stainless steel distributor of BOSTEEL,ZPSS,LISCO and also can get the resources from all the stainless steel mills in China.
Have own processing and distribution center & can take the orders according to customers' requirements.
The transport in Hangzhou is very convenient & nearby Shanghai and Ningbo Port.
Our products are certified by ISO9001:2008 authentication quality systems.
We are held by Zhejiang Materials Group,which is one of the world Top 500 Enterprise
Quick Response to Your Enquiry

Cold Steel Rolled different size/Cold Rolled Steel/

Q: What are the different types of surface defects in steel coils?: There are several different types of surface defects that can occur in steel coils. Some common examples include scratches, pits, scale, rust, and roll marks. Additionally, there can be issues such as waviness, edge cracks, and oil stains. These defects can affect the quality and appearance of the steel, and it is important to properly identify and address them during production and inspection processes.

Q: How are steel coils inspected for hardness?: Steel coils are inspected for hardness using various methods to ensure their quality and suitability for specific applications. One common method is the Rockwell hardness test, which involves pressing a diamond or ball indenter into the surface of the coil and measuring the depth of indentation. The hardness value is then determined based on the depth measurement. Another method used is the Brinell hardness test, which employs a hardened steel or tungsten carbide ball indenter to create an indentation on the coil's surface. The diameter of the indentation is measured, and the hardness value is calculated using a formula based on the applied load and the diameter of the indentation. Vickers hardness test, on the other hand, uses a pyramidal diamond indenter to create an indentation on the coil's surface. The indentation diagonal lengths are measured, and the hardness value is calculated using a formula based on the applied load and the diagonal lengths. Apart from these traditional methods, modern technology has introduced non-destructive testing techniques such as ultrasonic testing and eddy current testing. Ultrasonic testing involves transmitting ultrasonic waves through the coil and measuring the time taken for the waves to return. Changes in the wave pattern can indicate variations in hardness. Eddy current testing uses electromagnetic induction to detect changes in electrical conductivity, which can be correlated to hardness variations in the steel coil. Overall, steel coils undergo rigorous inspection processes using a combination of traditional and advanced techniques to ensure their hardness meets the required specifications. These inspections play a crucial role in maintaining the quality and reliability of steel products in various industries.

Q: How are steel coils used in the production of food processing equipment?: Due to their advantageous properties, steel coils find widespread use in the manufacturing of food processing equipment. These coils, typically crafted from stainless steel, are employed in the production of a diverse array of equipment, including mixers, blenders, conveyors, ovens, and fryers. The excellent resistance to corrosion exhibited by steel coils is one of the primary reasons they are preferred for use in food processing equipment. Stainless steel coils possess a high resistance to rust and can endure exposure to moisture and various food substances without deteriorating. This crucial characteristic ensures that the equipment remains hygienic and safe for food processing. In addition, steel coils provide exceptional strength and durability, enabling food processing equipment to withstand heavy use and harsh operating conditions. These coils can be shaped into various forms and sizes, making it possible to fabricate complex equipment components. This versatility facilitates the design and construction of equipment that is both efficient and reliable in processing a wide range of food products. Moreover, steel coils are simple to clean and maintain. The smooth surface of stainless steel prevents staining and simplifies the removal of food residues, thereby preventing the growth of bacteria. Regular cleaning and sanitation of food processing equipment are indispensable in maintaining food safety standards, and steel coils streamline this process, making it more effective. Furthermore, steel coils possess excellent heat conductivity properties, which facilitate efficient heat transfer in food processing equipment, such as ovens and fryers. This allows for precise temperature control and uniform cooking, ensuring consistent quality in the processed food products. In summary, steel coils assume a vital role in the production of food processing equipment by providing corrosion resistance, strength, durability, ease of cleaning, and efficient heat transfer. These qualities render steel coils an ideal material for manufacturing equipment that meets the stringent hygiene, safety, and quality standards required in the food processing industry.

Q: i wanna know all the similarities between iron and steel: 1. Both victim of corrosion

Q: How are steel coils used in the manufacturing of suspension springs?: Steel coils are used in the manufacturing of suspension springs by being tightly wound and then shaped into a helical or spiral form. These coils provide the necessary flexibility and strength required to absorb and distribute the weight and force exerted on the suspension system, allowing for a smooth and stable ride.

Q: How are steel coils inspected for chemical composition using spectroscopy?: Spectroscopy techniques such as X-ray fluorescence (XRF) and laser-induced breakdown spectroscopy (LIBS) can be employed to examine the chemical makeup of steel coils. XRF involves directing an X-ray beam onto the surface of the steel coil, prompting the sample's atoms to emit distinct X-ray fluorescence radiation. By examining the energy and intensity of these emitted X-rays, one can determine the elemental composition of the steel. This method is both rapid and non-destructive, enabling swift and accurate assessment of the steel coil's chemical composition. On the other hand, LIBS entails focusing a laser beam onto the steel coil's surface, generating a high-temperature plasma. The plasma emits light, which is subsequently collected and analyzed using a spectrometer. This emitted light contains characteristic atomic and ionic emissions, allowing for the identification and quantification of various elements present in the steel. LIBS is also a non-destructive technique, providing real-time results and requiring minimal sample preparation. Both XRF and LIBS offer multiple benefits in terms of speed, non-destructiveness, and user-friendliness for inspecting the chemical composition of steel coils. These spectroscopic techniques play a vital role in quality control and assurance, ensuring that the steel meets the necessary specifications and standards for diverse industrial applications.

Q: How does the steel coil market vary regionally?: The steel coil market varies regionally based on factors such as demand, production capacity, and market dynamics. Different regions have different levels of industrial development and infrastructure, which can affect the demand for steel coils. Additionally, variations in raw material availability, labor costs, and government policies also contribute to regional differences in the steel coil market. For example, developing regions may have higher demand for steel coils due to infrastructure projects, while mature markets may focus on specialized steel coil products for specific industries. Overall, regional variations in the steel coil market reflect the unique economic and industrial characteristics of each region.

Q: How are steel coils inspected for hardness using hardness testers?: Steel coils are inspected for hardness using hardness testers in order to determine the strength and durability of the steel. Hardness testers are devices specifically designed to measure the resistance of a material to indentation or penetration. In the case of steel coils, the hardness testers typically used are either Rockwell or Brinell testers. Both methods involve applying a specific force to the surface of the steel coil and measuring the depth of indentation or the size of the impression made. For Rockwell testing, a steel ball or a diamond cone is pressed into the surface of the coil with a predetermined force. The depth of penetration is measured and compared to a standardized scale to determine the hardness value. Different scales are used depending on the size and type of indenter used. Brinell testing, on the other hand, involves using a spherical indenter made of tungsten carbide or hardened steel, which is pressed into the surface of the steel coil with a known force. The size of the resulting indentation is measured and compared to a standardized table to determine the hardness value. Both methods provide a quantitative measure of the steel coil's hardness, which indicates its ability to resist deformation, wear, and cracking. The results obtained from hardness testing can then be used to ensure the steel meets specific quality standards or customer requirements. It is important to note that the inspection process may involve sampling, where representative sections of the steel coil are tested, or it may involve testing the entire coil, depending on the specific requirements of the inspection. Additionally, proper calibration and maintenance of the hardness testers are crucial to ensure accurate and reliable results.

Q: I wrote in my assignment that mild steel has a high carbon content (4%).This is why it has its strong and rigid properties.. is this correct?: High carbon steel is much harder than iron. In fact, steel -is- iron with carbon in it. Mild steel has a very low carbon content and is much softer. High carbon steel is much stronger after heat treatment. However, about 2% carbon, it is considered cast iron. Mild steel contains about 0.16% to 0.29% carbon content. It has a relatively low strength but is highly malleable.