Cold Rolled Steel/ Hot Steel Rolled different size

Cold Rolled Steel/ Hot Steel Rolled different size System 1

Cold Rolled Steel/ Hot Steel Rolled different size

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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

Brief Introduction
The Cold Rolled Steel is steel that has been worked below its recrystallization temperature by passing it between a pair of rollers. Recrystallization temperature is the temperature at which grains in the lattice structure of the metal have been rearranged, leaving it free of strain and deformations. The Cold Rolled Steel is pre-treated before being cold rolled with a process known as pickling, which uses strong acids to remove scale and other impurities. The Cold Rolled Steel is then passed through rollers to reduce its thickness. Most cold rolling takes place in multiple passes and as the size of the Cold Rolled Steel is further reduced, its strength and hardness both increase, but its ductility decreases. After cold rolling, heating the metal up in a process known as annealing can restore some of its ductility. The final Cold Rolled Steel may be manufactured in the form of sheets, strips, bars, or other forms.

Specification
1. Thickness: 0.4-2.0mm
2. Width: 900-1250mm
3. Inner Diameter: 508mm
4. Weight of Steel Coil: 3-15MT
5. Heat Treatment: Annealed
6. Margin Status: EC & EM
7. Surface Quality: FB&FC
8. Surface Status: SB & SD
9. Surface Treatment: Oiling

Mechanical Properties
1. Yield Strength: ≤ 320MPa
2. Tensile Strength: ≤ 370MPa
3. Elongation (L=50mm, b=25mm) When:
(1) Nominal Thickness<0.25mm: 30%
(2) Nominal Thickness 0.25mm-<0.40: 32%
(3) Nominal Thickness 0.40-<0.60mm: 34%
(4) Nominal Thickness 0.60-<1.0mm: 36%
(5) Nominal Thickness 1.0-<1.6mm: 37%
(6) Nominal Thickness >1.6mm: 38%

Packing
We use Seaworthy Package to make sure Cold Rolled Steel is well-protected during the long ocean voyage.

Application
1. Base metal for coated and dipped products.
2. Home appliance
3. Precise welding tube
4. Flux cored welding wire
5. Bicycle, battery shell,
6. Automobile fitting, hardware
7. Enameling industry etc.

Superiority
1. High precision of dimensional tolerance
2. Excellent mechanical property such as the yield strength and tensile strength, etc.
3. Being highly resistant to denting
4. Exhibits useful magnetic properties
5. High quality surface finish and get well prepared for the surface coating
6. Available in a variety of sizes and shapes with characteristics useful in a wide range of applications

Chemical Components

Grade	Chemical Components
Grade	C	Mn	P	S	Alt
DC01	≤0.12	≤0.50	≤0.035	≤0.025	≥0.020
DC03	≤0.10	≤0.45	≤0.030	≤0.025	≥0.020
DC04	≤0.08	≤0.40	≤0.025	≤0.020	≥0.020

Cold Rolled Steel/ Hot Steel Rolled different size

FAQ

1. Do you have QC team?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.for quality inspection every day.

Q: How are steel coils used in the manufacturing of telecommunications equipment?: Steel coils are used in the manufacturing of telecommunications equipment as they are commonly used as a raw material for various components, such as enclosures, cabinets, and brackets. The coils are processed and shaped to create the necessary parts that provide structural support, protection, and stability to the telecommunications equipment.

Q: What are the common defects found in steel coils?: Some common defects found in steel coils include surface defects like scratches, indentations, and pits, as well as internal defects such as cracks, lamination, and segregation. Other defects can include edge wave, coil breaks, and coil set.

Q: .Yea, so I just saw the old Conan movie with Arnold. Good movie, but I still don't get it. What IS the riddle of steel???I get that like from the begining Conan's dad is like telling him a story about Crom and giants, and people got steel once Crom killef the giants. Then, later on in the movie Conan's talking to his lil' asian homie, and Conan tells him that when he dies... he'll go before Crom, and Crom will ask him what the riddle of steel is, and if he doesn't know it he'll get kicked out of barbarian heaven!But, what is the riddle of steel???C'mon guys... I want to in to barbarian heaven! LolBut, seriously though... what us it???.: Doom answers this question by explaining to Conan that the true strength of steel is in the hand that wields it – in other words, it is the resolve and commitment we bring to a task, not the quality or quantity of tools we use in performing it, that is the most important factor in determining success

Q: How are steel coils used in the manufacturing of agricultural trailers?: Steel coils are used in the manufacturing of agricultural trailers to provide strength, durability, and stability to the trailer's frame, ensuring it can withstand heavy loads and harsh working conditions. These coils are typically shaped and welded to create the trailer's structural components, such as the chassis, sidewalls, and flooring. Additionally, steel coils can be cut and formed into various parts, including axles, suspension systems, and hitch assemblies, to further enhance the trailer's performance and functionality in agricultural operations.

Q: How are steel coils used in the production of electrical systems?: Steel coils are used in the production of electrical systems as they serve as the key component in the construction of transformers and electric motors. These coils are wound with insulated copper wire and when an electric current passes through them, they generate a magnetic field that enables the conversion of electrical energy into mechanical energy or vice versa.

Q: How are steel coils used in the production of metal buildings?: Steel coils are used in the production of metal buildings as they are rolled into sheets and then formed into various structural components such as beams, columns, and roof panels. These coils allow for efficient mass production and provide a high-strength and durable material that ensures the structural integrity of the metal building.

Q: what is the refining process doing to raw materials in steel: Refining process for steel include burning out the extra carbon and impurities with oxygen lancing and protecting the steel from atmospheric gas inclusion by protective environment during such process . Measured % of ferralloys are also added to produce various grades of steel . These may be done in induction furnace/ laddle refining furnace / crucibles converters etc.

Q: What is the standard weight of steel coils?: The weight of steel coils can differ based on the particular type and dimensions of the coil. Nevertheless, in broad terms, the weight of steel coils usually spans from a few hundred kilograms to multiple metric tons. The thickness, width, and length of a steel coil play a crucial role in determining its weight. Numerous industry standards and specifications are in place to govern the production and commerce of steel coils, encompassing directives for establishing the suitable weight range for different coil sizes.

Q: What are the common methods of transporting steel coils?: There are several common methods of transporting steel coils, depending on the distance, quantity, and specific requirements of the shipment. The most commonly used methods include: 1. Flatbed trucks: This is the most basic and widely used method for short-distance transportation of steel coils. Flatbed trucks have a flat, open trailer bed that allows for easy loading and unloading of the coils. The coils are secured and strapped down to prevent movement during transit. 2. Rail transport: For longer distances, rail transport is often preferred due to its cost-effectiveness and efficiency. Coils are loaded onto specially designed railcars, known as coil cars or gondola cars, which have curved troughs or cradles to hold the coils securely in place. This method is particularly advantageous for large quantities of steel coils. 3. Ocean freight: When transporting steel coils internationally or over long distances across oceans, shipping by sea is a common method. The coils are typically loaded into specialized shipping containers, known as coil containers or coiled steel containers, which have internal cradles to prevent movement and damage during transit. These containers are then loaded onto cargo ships for transportation. 4. Barge transport: In regions with navigable waterways, barges can be used to transport steel coils. Similar to ocean freight, the coils are loaded into specially designed containers or barges with cradles to secure them during transport. Barges offer an economical and environmentally friendly option, especially for inland waterway transportation. 5. Intermodal transport: In some cases, a combination of different modes of transportation may be used for transporting steel coils. This is referred to as intermodal transport. For example, steel coils may be initially transported by truck to a rail yard, where they are then loaded onto railcars for long-distance transport. This method allows for the advantages of different modes of transportation to be combined, optimizing cost and efficiency. It is worth noting that the specific method of transporting steel coils may vary depending on factors such as coil size, weight, destination, and any specific handling requirements.