Coil steel cold rolled made in China 2016
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 52634 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Item specifice
Standard:
ASTM,EN,JIS
Technique:
Cold Rolled
Shape:
Square,Round,Rectangular
Surface Treatment:
Oiled,Polished,Bright
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO
Thickness:
0.08-4.00mm
Width:
50-2000mm
Length:
customized
Outer Diameter:
508/610mm
Net Weight:
2-25 mt
Packaging:
standard seaworthy packing
Cold rolled sheet steel products are used in a wide variety of end applications such as appliances, automobiles - exposed as
well as unexposed parts, electric motors, plumbing fixtures, drum manufacturing, shelving, furniture, doors, toolboxes, tubing
products, unexposed construction products, as well as many other areas of manufacturing.
Because cold rolled steel sheet is prone to rusting, standard practice is to apply a rust-preventative oil at the exit end of the temper mill (the last processing step). Rust-preventative oils are different than forming lubricants in that they contain special corrosion-inhibiting additions. In addition to the oil, Curtis Steel maintains clean, dry environments in climate controlled warehouses at
all its facilities to ensure our coils and sheets arrive to you in prime condition.
.
Standard and Grade :
Cold rolled steel coils | ||||
JIS G3141-2005 | EN10130-2006 | ASTM A1008-12a | ||
Commercial quality | SPCC | DC01 | CS Type A/B/C | |
Drawing quality | SPCD | DC03 | DS Type A/B | |
Deep drawing quality | SPCE SPCF(non aging) | DC04 | DDS | |
Extra deep drawing quality | SPCG(non aging) | DC05/06 | EDDS | |
Application :
Automobile Industry, White Goods, Home Applicances, Oil & Air filters, semi product for coating with enamel or zinc, construction &
building sector, air-conditioning, furniture, radiators, tubes, profiles, mechanical construction, shelving, containers, drums
Packing:
Packaging Detail | The packing of coil consists of anti-damp paper ,PVC film ,hardboard paper , steel box , strapped with steel strips, fitted with locks and edge protectors and guarantees the optimal condition of the delivered goods. Each coil can be additionally fitted with wooden/steel skids(eye of the side) or wooden pallets(eye of the sky) |
Delivery Time | within 30 days of receipt of LC original or prepayment |
Our Services:
MOQ | FCL, 25 metric tons per 20GP, can be assorted with different sizes. |
LCL for trial order is acceptable. | |
Price Term | EX-WORK, FOB China Port, CNF, CIF |
Payment | T/T, 30% advanced payment before production and balance before shipment; OR Irrevocable L/C at sight. |
Delivery Time | within 30 days of receipt of LC original or prepayment |
FAQ:
1. Can you offer OEM to me? What about MOQ?
Of course, we are a professional with OEM manufacturer for 9 years. the MOQ can be 50 ton/ order.
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.
4.How Can I Get Some Sample?
We are honored to offer you free sample, but courier charges will be on your side.
- Q:I like steel strings but don't want to get a new guitar. Is that my only option?
- Don't EVER put steel strings on a nylon stringed guitar. Steel strings have many times more tension than nylon strings. The bodies on nylon stringed guitars are braced lighter than their steel stringed cousins. If you put steel strings on a guitar designed for nylon, they will belly the top up as well as warp the neck. Since they're attached differently, you'd (luckily) have a hard time even getting steel strings to fit. Enjoy your nylon string guitar for what it is, and if you want to play steel strings, buy a guitar designed for them.
- Q:What are the advantages of using pre-painted steel coils?
- There are several advantages of using pre-painted steel coils. Firstly, they offer a wide range of color options, allowing for greater design flexibility and customization. Secondly, pre-painted steel coils have a protective coating that enhances their durability and resistance to corrosion, extending their lifespan. Additionally, pre-painted steel coils are available in various finishes, such as matte, glossy, or textured, providing aesthetic appeal. Furthermore, these coils are ready for immediate use, saving time and labor costs associated with painting on-site. Overall, pre-painted steel coils offer convenience, durability, versatility, and enhanced aesthetics, making them a preferred choice in various industries.
- Q:What are the different methods of annealing steel coils?
- There are several different methods of annealing steel coils, each with its own advantages and applications. The main methods include full annealing, process annealing, and spheroidize annealing. Full annealing is the most common method and involves heating the steel coils to a temperature above its critical point, typically between 800 and 900 degrees Celsius (1472 and 1652 degrees Fahrenheit), and then slowly cooling it down in a controlled manner. This process helps to refine the grain structure of the steel, making it softer and more ductile. Full annealing is often used to relieve internal stresses, improve machinability, and enhance the overall mechanical properties of the steel. Process annealing, also known as subcritical annealing or stress relief annealing, is a method used to reduce the hardness and brittleness of steel coils. It involves heating the coils to a temperature below its critical point, typically between 550 and 650 degrees Celsius (1022 and 1202 degrees Fahrenheit), and then slowly cooling them down. This process helps to relieve internal stresses that may have developed during previous manufacturing processes, such as cold working or welding. Process annealing is commonly used to improve the formability and toughness of steel coils. Spheroidize annealing is a specific type of annealing that is used to soften high carbon and alloy steels. It involves heating the steel coils to a temperature slightly below its critical point, typically between 650 and 700 degrees Celsius (1202 and 1292 degrees Fahrenheit), and then holding it at that temperature for a prolonged period of time. This allows the carbides within the steel to transform into rounded or spheroidal shapes, which increases the steel's machinability and ductility. Spheroidize annealing is often employed in the production of cutting tools, bearings, and other applications where improved machinability is desired. In addition to these main methods, there are also variations and specialized techniques that can be used for specific purposes, such as recrystallization annealing, intercritical annealing, and solution annealing. Each method has its own set of parameters and temperature ranges, and the choice of annealing method depends on factors such as the type of steel, desired mechanical properties, and the intended application of the steel coils.
- Q:What are the dimensions of steel coils used in the metal furniture industry?
- The dimensions of steel coils used in the metal furniture industry can vary depending on the specific application and requirements. However, common dimensions for steel coils used in this industry range from 0.5mm to 3mm in thickness and 600mm to 2000mm in width.
- Q:What are the different methods of welding steel coils?
- Steel coils can be welded using various methods, each with its own advantages and applications. The most commonly used methods for welding steel coils are: 1. Resistance Welding: By applying pressure and electric current, this method generates heat and joins the steel coils. It is ideal for high-speed production and can be categorized into spot welding, seam welding, and projection welding. 2. Arc Welding: This technique involves creating an electric arc between an electrode and the steel coils, resulting in intense heat and metal melting. Different arc welding techniques include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), and flux-cored arc welding (FCAW). 3. Laser Welding: Laser welding employs a highly focused laser beam to melt and join the steel coils precisely. It offers excellent control, high welding speeds, and minimal heat-affected zones, making it suitable for thin materials and complex designs. 4. Electron Beam Welding: This method uses a concentrated beam of high-velocity electrons to melt and fuse the steel coils. It is commonly used for welding stainless steel and other high-temperature alloys, providing deep penetration and minimal distortion. 5. Friction Stir Welding: By plunging a rotating tool with a pin into the steel coils, heat is generated through friction, and the softened material is stirred together to form a solid joint. Although primarily used for joining aluminum, it can also be applied to steel coils. 6. Ultrasonic Welding: This technique involves applying high-frequency vibrations to the steel coils, creating friction and heat for fusing the materials. It is commonly used for smaller steel coils and provides fast and efficient welding with minimal distortion. These methods offer distinct advantages and are suitable for specific applications. The choice of welding method depends on factors such as the type and thickness of the steel, desired strength and quality of the weld, production speed, and cost considerations.
- Q:What are the dimensions of steel coils used in the metalworking tool industry?
- The dimensions of steel coils used in the metalworking tool industry can vary depending on the specific application and requirements of the tool being used. However, there are some common dimensions that are often seen in the industry. Typically, steel coils used in metalworking tools are available in various widths ranging from 24 inches to 72 inches. The thickness of the coils can vary as well, with common thicknesses ranging from 0.020 inches to 0.250 inches. The length of the coils can vary significantly, with standard lengths typically ranging from 100 feet to 2000 feet or more. These dimensions are chosen based on factors such as the type of metal being worked, the specific tool being used, and the desired outcome of the metalworking process. Additionally, other factors such as the weight and handling capabilities of the tool and the efficiency of the manufacturing process may also influence the dimensions of the steel coils used. It is crucial to consult with manufacturers, suppliers, or industry experts to determine the most suitable dimensions for steel coils in the metalworking tool industry, as these dimensions can vary based on specific needs and preferences.
- Q:I understand that Stainless Steel is a low carbon steel having minimum 10.5% chromium content in it there r 60 different type of stainless steel. Kindly informa) Is this info correct?????b) Which stainless steel can get rusted or can have superficial rust????
- Stainless steel is a generic term for a whole range (there are more than 60 types) of Fe-Cr alloys. They all contain some amount of C and some alloys include a good number of other alloying elements. In almost all cases, the materials have corrosion resistance due the Cr atoms that are in solid solution with the Fe matrix. Under corrosive conditions, the Cr forms a thin tight coherent layer of Cr-oxide. This Cr oxide coating prevents further corrosion so long as it is not chemically or physically removed. If the SS has been subject to mechanical abrasion, the corrosion resistance can sometimes be restored by a light exposure to nitric acid which passivates the surface, restoring the Cr-oxide layer. The carbon content is an important factor in corrosion preformance but so is the heat treatment. Under the wrong conditions and in different environments, all SSs can rust. One of the most common corrosion problems is sensitization which occurs in the heat affect zone (HAZ) around welds. If the C content is high enough and the heat is high enough, the Cr atoms in solid solution form Cr-carbides and are no longer available to form a protective Cr-oxide. The corrosion resistance can be restored by appropriate heat treatment.
- Q:Are steel coils affected by temperature changes?
- Yes, steel coils are indeed affected by temperature changes. Steel is known to expand and contract with temperature fluctuations. When exposed to high temperatures, steel coils expand, and when subjected to low temperatures, they contract. These thermal expansions and contractions can cause changes in the dimensions and shape of the steel coils, which can potentially affect their performance and functionality.
- Q:How are steel coils coated for added protection?
- To enhance their durability and resistance to corrosion, steel coils undergo a process known as coil coating, wherein a protective layer is applied onto their surfaces. There are several methods employed to coat steel coils, but the most commonly used one is the continuous coil coating process. Under this process, the steel coil is unwound and extensively cleansed to eliminate any contaminants or impurities on its surface. This step ensures proper adhesion of the coating material. Once the steel coil is cleansed, it undergoes a pre-treatment to enhance its surface properties. Typically, this involves the application of a chemical solution or a conversion coating onto the coil's surface. The aim of this step is to create a surface that is receptive to the coating material and improves its adhesion. Following the pre-treatment, the steel coil is coated with a protective layer, which can be in the form of liquid paint, powder coating, or a combination of both. The coating material is applied evenly onto the coil's surface using techniques like roll coating, spray coating, or electrostatic coating. Once the coating is applied, the steel coil is cured or dried using heat or, in some cases, ultraviolet light. This curing process ensures a strong bond between the coating material and the steel surface, resulting in the desired protective properties. The coated steel coil then undergoes inspection to ensure quality control measures like thickness, adhesion, and appearance are met. If the specifications are satisfied, further processing may take place, involving cutting, slitting, or forming the coil into the desired shape or size. In conclusion, the process of coating steel coils for added protection involves thorough cleansing, pre-treatment, application of a protective coating, curing, and quality control. This ensures that the steel coils exhibit excellent resistance to corrosion, abrasion, and other environmental factors, making them suitable for a wide range of applications across various industries.
- Q:What are the different types of corrosion protection for steel coils?
- There are several types of corrosion protection for steel coils, including hot-dip galvanizing, electro-galvanizing, paint coatings, and organic coatings. Hot-dip galvanizing involves immersing the steel coil in a bath of molten zinc, creating a protective layer on the surface. Electro-galvanizing is a similar process, but uses an electric current to deposit a layer of zinc onto the steel. Paint coatings provide a barrier between the steel and the environment, preventing corrosion. Organic coatings, such as epoxy or polyurethane, also provide a protective layer and can be applied by various methods such as spraying or dipping.
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Coil steel cold rolled made in China 2016
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 52634 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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