• Cold Rolled Steel/Black Steel Rolled different size System 1
  • Cold Rolled Steel/Black Steel Rolled different size System 2
  • Cold Rolled Steel/Black Steel Rolled different size System 3
Cold Rolled Steel/Black Steel Rolled different size

Cold Rolled Steel/Black Steel Rolled different size

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
9000 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

GradeChemical Components
CMnPSAlt
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/Black 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: I want to know if it is possible to make regular steel stainless.From what I understand stainless consist of chromium about 10 percent I think.Any way I'm wondering if properties can be added in a process or can this only be possible during actual manufacturing of the steel.And I'm not talking about chrome like stainless steel that's not to shiny.
Worth very little as far as I'm concerned. It has a very poor co efficient of heat, is hard to lubricate to keep the food from sticking and will develop a hot spot easily. My preference is a good quality cast iron, it is heavy but conducts heat well and spreads it evenly. Stainless with copper bottoms is marginal for boiling water but it does clean easily. There are several alloys on the market that are usable as cook ware. Aluminum is worse than stainless. Of the pure metals, copper is the best conductor of heat, cast iron is my choice, spun steel does work. Hope this helps. Never wash cast iron cookware with soap and water.
Q: How are steel coils used in the production of industrial storage tanks?
Industrial storage tanks commonly utilize steel coils due to their superior strength and durability. These coils are typically crafted from high-quality steel that is rolled into a coil shape, enabling convenient transportation and handling. During the production process, steel coils are initially uncoiled and flattened to create steel sheets. These sheets are then cut and formed into the desired shape and size for the storage tank. The steel sheets are joined together through welding or bolting to construct the tank's body, which is designed to endure high pressure and heavy loads. The utilization of steel coils in the production of industrial storage tanks offers numerous benefits. Firstly, the strength and durability of steel ensure that the tanks can withstand harsh conditions and resist corrosion. This is particularly vital for storage tanks containing corrosive substances or exposed to severe environments. Moreover, the flexibility of steel coils permits customization of the tank's design and size. This is especially advantageous in industries with varying storage requirements, like the oil and gas sector. Steel coils can be effortlessly cut and molded into diverse shapes and sizes, facilitating the creation of storage tanks tailored to specific storage needs. Furthermore, steel coils are easily transportable and storable, making them a cost-effective choice for industrial storage tank production. The coils can be efficiently transported to the manufacturing facility, reducing transportation costs and logistical complexities. In conclusion, steel coils play a crucial role in the production of industrial storage tanks by providing strength, durability, and customization options. Their usage guarantees the safe storage and protection of various substances, rendering them indispensable in a wide range of industries.
Q: How are steel coils used in the manufacturing of fasteners?
Steel coils are used in the manufacturing of fasteners by being processed and shaped into various forms, such as screws, bolts, and nails. The coils are fed into machines that cut, shape, and thread the steel to create the desired fastener. This process allows for efficient mass production and ensures the strength and durability of the fasteners.
Q: What are the common packaging methods for steel coils?
The common packaging methods for steel coils often involve using steel strapping or plastic banding to secure the coils, followed by either placing them on wooden pallets or loading them into steel crates for transportation and storage. Additionally, protective materials such as cardboard or stretch film may be used to prevent damage and ensure the integrity of the coils during shipping.
Q: Can steel coils be coated with tin?
Yes, steel coils can be coated with tin through a process called tinplating. Tinplating provides corrosion resistance and enhances the appearance of the steel surface.
Q: Can steel coils be used in the production of construction machinery?
Yes, steel coils can be used in the production of construction machinery. Steel coils are often used as raw materials for manufacturing various components of construction machinery, such as frames, supports, and structural parts. The strength, durability, and resistance to corrosion of steel make it an ideal material for construction machinery, ensuring the longevity and reliability of the equipment.
Q: What is the difference between hot-rolled and cold-rolled steel coils?
Hot-rolled steel coils are produced at high temperatures, resulting in a rough surface and less precise dimensions. Cold-rolled steel coils, on the other hand, are processed at lower temperatures, leading to a smoother surface and more accurate dimensions.
Q: Are steel coils recyclable?
Yes, steel coils are recyclable. Steel is a highly recyclable material that can be melted down and used to create new steel products, including steel coils. Recycling steel coils helps to conserve natural resources, reduce energy consumption, and minimize waste.
Q: What are the dimensions of steel coils used in the mining equipment industry?
The dimensions of steel coils used in the mining equipment industry can vary depending on the specific application and equipment. However, common dimensions for steel coils in this industry range from 0.5 to 3 millimeters in thickness and 600 to 2000 millimeters in width. The length can also vary but is typically around 1000 to 3000 meters.
Q: Is a steel plate the same as a steel coil?
Generally speaking, they can be used interchangeably, and the purchase price of the plate is slightly cheaper.

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