Prime quantity Cold Rolled Steel Coils/Sheets, CNBM

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
100000 m.t./month
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Specification

Product Name

Cold   Rolled Sheet Coil

Material

SPCC/SPCD/SPCE/DC01/ST12/   ST14/SPCD/DC03/DC04 ect.

Grade Standard

JIS   G3302, EN10142, ASTM653, ASTM95

Thickness

0.15-3.5mm

Width

600mm-1500mm

Coil ID

508-610mm

Coil OD

max   1500mm

Weight

3-10   Tons

Tolerance

Thickness   tolerance:+/-0.02mm; Width tolerance:+/-5mm

Surface

No-skin   passed or Skin passed, Tensile leveled

Surface Treatment

Chromate/Unchromate   passivation, fingerprint resistant treatment, oiled/unoiled

Annual Output

350,000MT

Application

Construction,   hardware, home applicances, interior decoration

 

General Application of Cold Rolled Steel Coil:

Classification

Designation

Characteristics

Main   applications

Commercial   quality

SPCC

SPCCT

Commercial   quality suitable for bending fabrication and simple forming; this is the type   in greatest demand.

Refrigerators,   cabinets, power distribution baords and drums.

Drawing   quality

SPCD

Drawing   quality second only to that of SPCEN. Excellent uniformity.

Automobile   floor and roof panels.

Deep-drawing   quality

SPCE

SPCF

Deep-drawing   quality.With metallurgically controlled grain size, it retains its beautiful   finish even after being deep-drawn.

Automobile   fenders and quarter panels

Extra   deep-drawing quality

SPCG

Extra-low-carbon   steel sheets with highest workability

Automobile   internal panels and deep-drawn parts

 

Specification

1. Thickness: 0.4-2.0mm

2. Width: 900-1250mm

3. Inner Diameter: 508 & 610mm

4. Weight of Steel Coil: 3-15MT

5. Heat Treatment: Annealed + Smoothed

6. Margin Status: EC & EM

7. Surface Quality: FC & FD

8. Surface Treatment: Oiling

9. Surface Status: Bright


 

Chemical Components

Grade

Chemical Components

C

Mn

P

S

Alt

St12

≤0.10

≤0.50

≤0.035

≤0.025

≥0.020

St13

≤0.08

≤0.45

≤0.030

≤0.025

≥0.020

St14

≤0.08

≤0.40

≤0.025

≤0.020

≥0.020

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%


Q:
The manufacturing process and resulting characteristics of steel sheets differ between hot-rolled and cold-rolled varieties. Hot-rolled steel sheets are produced by heating a large steel slab and passing it through high-temperature rollers. This allows for easy shaping and forming into various sizes and thicknesses. The elevated temperature also removes any residual stress in the steel, making it more flexible and moldable. Consequently, hot-rolled steel sheets possess a rougher surface finish and may exhibit a thin oxide layer called scale. However, they are generally less expensive and come in a wider range of sizes. In contrast, cold-rolled steel sheets are created by cooling down the hot-rolled steel and passing it through rollers at room temperature. This process not only reduces the steel's thickness but also enhances its surface finish and dimensional accuracy. Cold-rolling gives the steel sheets a smooth and shiny appearance, making them suitable for applications where aesthetics matter. Additionally, cold-rolling improves the steel's strength and hardness, making it more appropriate for high-stress uses. However, cold-rolled steel sheets are typically more costly due to the additional processing involved. In summary, hot-rolled steel sheets offer greater formability and lower cost, but have a rougher surface finish and may exhibit scale. On the other hand, cold-rolled steel sheets have superior surface finish, dimensional accuracy, and strength, but are pricier. Choosing between hot-rolled and cold-rolled steel sheets depends on the specific requirements of the application, including desired surface finish, strength, and cost considerations.
Q:
There are various certification standards for steel sheets, including ISO 9001 which ensures quality management systems, ISO 14001 which focuses on environmental management systems, and ASTM A568/A568M which specifies the general requirements for steel sheet products. Additionally, there are standards such as ASTM A653/A653M for hot-dip galvanized steel sheets and ASTM A1008/A1008M for cold-rolled steel sheets. These standards help ensure the quality, performance, and compliance of steel sheets in different applications.
Q:
Yes, steel sheets can be bent without cracking. The ability of steel sheets to be bent without cracking depends on a few factors such as the type and grade of steel, the thickness of the sheet, and the bending process used. Generally, steel sheets can be successfully bent without cracking as long as the bending radius and angle are within the recommended limits for that specific type and grade of steel. Additionally, preheating the steel sheet before bending can also help reduce the risk of cracking. It is important to follow proper bending techniques and use appropriate tools to ensure successful and crack-free bending of steel sheets.
Q:
Yes, steel sheets are suitable for agricultural applications. Steel is a versatile and durable material that can withstand harsh weather conditions and provide long-term structural support. Steel sheets can be used in various agricultural applications such as constructing farm buildings, barns, sheds, and storage facilities. They can also be used for fencing, roofing, and siding purposes. Steel sheets offer excellent strength and resistance to pests, fire, and rot, making them ideal for protecting agricultural equipment and crops. Additionally, steel is recyclable, which makes it an environmentally-friendly choice for sustainable farming practices. Overall, steel sheets are a reliable and cost-effective solution for various agricultural applications.
Q:
The process of etching or engraving on steel sheets involves several steps to create intricate designs or patterns on the surface of the metal. Here is a general overview of the process: 1. Design and Preparation: The first step is to create or choose a design that will be etched or engraved onto the steel sheet. This design can be hand-drawn or created using computer software. Once the design is finalized, it is transferred onto a film or stencil. 2. Cleaning the Steel Sheet: Before beginning the etching or engraving process, the steel sheet needs to be thoroughly cleaned to remove any dirt, grease, or oxidation. This is typically done using a solvent or a degreasing agent to ensure a clean and smooth surface for the etching or engraving. 3. Applying the Stencil: The stencil or film with the desired design is carefully applied to the steel sheet. This stencil acts as a protective barrier, preventing the etching or engraving solution from affecting the areas that should not be etched or engraved. 4. Etching or Engraving Solution: A specialized etching or engraving solution is selected based on the desired effect and the type of steel being worked on. This solution is applied to the exposed areas of the steel sheet, where the stencil has not been applied. The etching or engraving solution chemically reacts with the steel, removing a thin layer of metal to create the desired design or pattern. 5. Control and Timing: The etching or engraving process requires careful control of factors such as temperature, time, and concentration of the solution. These parameters can affect the depth and quality of the etching or engraving, so it is crucial to closely monitor and adjust them as needed. 6. Rinsing and Cleaning: Once the desired etching or engraving depth is achieved, the steel sheet is thoroughly rinsed to remove any remaining solution. This step is essential to stop the chemical reaction and prevent any further etching or engraving. 7. Finishing Touches: After rinsing, the steel sheet may undergo additional steps to enhance the appearance of the etched or engraved design. This can include polishing, buffing, or applying protective coatings to improve durability and visual appeal. Overall, the process of etching or engraving on steel sheets requires precision, attention to detail, and the use of specialized tools and chemicals. It is a skillful art form that can produce stunning and intricate designs on steel surfaces.
Q:
Yes, steel sheets can be used in food processing industries. Stainless steel sheets are commonly used in food processing industries due to their many beneficial properties. Stainless steel is resistant to corrosion, which is essential in an environment where food is processed, as it prevents contamination and ensures the safety of the final product. Steel sheets are also easy to clean and maintain, making them ideal for use in industries where hygiene is of utmost importance. Additionally, stainless steel is non-reactive to food, meaning it does not leach any harmful chemicals into the processed food. Steel sheets are versatile and can be used for various applications in food processing industries, such as countertops, worktables, shelving, and equipment surfaces.
Q:
Yes, steel sheets are suitable for outdoor sculptures. Steel has high durability, strength, and resistance to weathering, making it an ideal material for withstanding outdoor conditions. Additionally, steel can be easily manipulated and shaped, allowing for intricate and creative sculptures to be crafted.
Q:What material can be replaced by 345D steel plate?
Higher than its level of material of steel plate can replace.Q345D. yield in more than 345 of the steel.D class -20 degree of shock. Can replace the Q370D.Q390D.Q420D.Q460D.Q550D.Q690D., generally in engineering machinery can be higher generation low
Q:
Yes, steel sheets can be etched or engraved using various techniques such as chemical etching, laser engraving, or mechanical engraving.
Q:
Yes, steel sheets can be used for storage racks. Steel sheets are known for their durability and strength, making them an ideal material for storage racks. They can support heavy loads and provide stability to the storage system. Steel sheets can be easily fabricated and customized to fit the specific requirements of the storage space. Additionally, steel is resistant to corrosion, ensuring the longevity of the storage racks and making them suitable for both indoor and outdoor use.

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