Cold Rolled Steel/Black Steel Rolled different size
- Ref Price:
-
- 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
| Grade | Chemical Components | ||||
| 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 |
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: What are the different types of welding used for steel coils?
- There are several different types of welding used for steel coils, depending on the specific requirements and applications. Here are some of the most common types of welding techniques used for steel coil fabrication: 1. Shielded Metal Arc Welding (SMAW): Also known as stick welding, it involves the use of a flux-coated electrode and an electric current to create an arc between the electrode and the base material. SMAW is a versatile and widely used welding technique suitable for various steel coil applications. 2. Gas Metal Arc Welding (GMAW): Commonly known as MIG (Metal Inert Gas) welding, GMAW uses a continuous wire electrode and a shielding gas to protect the weld pool from atmospheric contamination. GMAW is known for its high welding speed and ease of automation, making it a popular choice for steel coil manufacturing. 3. Flux-Cored Arc Welding (FCAW): Similar to GMAW, FCAW uses a tubular electrode with flux inside. The flux provides both the shielding gas and additional alloying elements, resulting in increased efficiency and improved weld quality. FCAW is often used in high-speed welding applications for steel coils. 4. Gas Tungsten Arc Welding (GTAW): Also known as TIG (Tungsten Inert Gas) welding, GTAW uses a non-consumable tungsten electrode and an inert gas, typically argon, to shield the weld area. GTAW produces high-quality, precise welds with excellent control over the heat input, making it suitable for thin steel coil materials and critical welding applications. 5. Submerged Arc Welding (SAW): This welding technique involves the use of a continuously fed wire electrode and a granular flux that covers the weld area. The arc is submerged under the flux, providing excellent protection and reducing the need for post-weld cleaning. SAW is commonly used for welding thick steel coils due to its high deposition rates and deep penetration capabilities. These are just a few examples of the different types of welding techniques used for steel coil fabrication. The choice of welding method depends on factors such as the specific steel grade, thickness, desired weld quality, production speed, and cost considerations. It is essential to select the appropriate welding technique to ensure the durability and performance of the steel coils in various applications.
- Q: What is the process of uncoiling steel coils?
- The process of uncoiling steel coils involves carefully unwinding the tightly wound steel coil using specialized equipment. This typically includes a decoiler or uncoiler machine that holds and releases the coil, allowing it to gradually unwind. The coil is typically fed through a set of rollers or guides to ensure a smooth and controlled unwinding process. As the coil unwinds, it can be further processed or used for various applications, such as cutting, stamping, or forming into different shapes.
- Q: ok I got a dpms ar 15 and all i have put though it is good brass 223 ammo but is it ok to shoot the old crappy steel cased wolf ammo out of it will it hurt its function or will it hurt it cosmetically?
- I won't run steel through my Ar-15,why spend $700-$1200 on a rifle to run some cheap steel case **** in it? That is what an ak or sks is for.
- Q: How are steel coils used in the production of signage?
- Steel coils are used in the production of signage as they provide a durable and versatile material for creating sturdy sign structures. The steel coils are typically cut into desired shapes and sizes, then bent, welded, or formed to create the framework of the signs. This allows for the creation of different types of signs, such as billboards, street signs, or large display signs. The steel coils' strength and resistance to weather make them ideal for outdoor signage that needs to withstand various environmental conditions.
- Q: Can steel coils be cut to length?
- Yes, steel coils can be cut to length using various cutting methods such as shearing, slitting, or sawing.
- Q: How are steel coils used in the production of metal cabinets?
- Steel coils are used in the production of metal cabinets as they serve as the primary raw material. These coils are unwound and cut into precise lengths, which are then formed, shaped, and welded to create the various components of the cabinet, such as the sides, back, and shelves. The steel coils provide the necessary strength, durability, and rigidity required for the construction of sturdy and long-lasting metal cabinets.
- Q: How do steel coils perform in high-pressure applications?
- Due to their robust and durable nature, steel coils are highly effective in high-pressure scenarios. The exceptional tensile strength of steel enables it to endure immense pressure without any distortion or breakdown. Moreover, steel coils are specifically engineered to retain their shape and structural integrity even under the most extreme pressure, making them ideal for deployment in a wide range of high-pressure applications such as hydraulic systems, pressure vessels, and industrial machinery. Furthermore, the exceptional resistance of steel coils to corrosion and high temperatures further augments their performance in high-pressure environments. These qualities, coupled with their reliability and capacity to withstand high pressure, render steel coils the preferred choice for industries seeking resilient and efficient equipment.
- Q: Is there any other way of testing whether or not you have a 1944 Steel penny that won't damage the penny. The magnet test doesn't seem to work cause even when I try to get a 2007 penny to stick to the magnet...it won't. So is there some kind of magnet needed? Like power wise or anything like that, if not then I need to know what are other ways of testing the 1944 penny.
- Weigh it. I'm not an expert on coins, but if the 1944 was 100% steel, I would expect it to weigh something different then modern pennies. Another test would be to measure the resistance with a micro-ohm meter. This is a specialized device that can measure resistance to a millionth of an ohm. Steel should have a different resistance than the metals used on other pennies. Here are some comments from wikipedia: In 1943, at the peak of World War II, cents of zinc-coated steel were made for a short time due to war demands for copper. A few (the U.S. Mint reports forty) copper cents from 1943 were produced from the 1942 planchets remaining in the bins. Similarly, some 1944 steel cents have been reported. Following 1943, salvaged ammunition shells made their way into the minting process, and it was not uncommon to see coins featuring streaks of brass or having a considerably darker finish than other issues.
- Q: How are steel coils used in the production of furniture components?
- Due to their strength, durability, and versatility, steel coils are frequently utilized in the manufacturing of furniture components. These coils, crafted from high-quality steel, undergo a process of uncoiling before being fed into a machine known as a stamping press. Within the stamping press, a die is employed to shape and cut the steel coil into various components necessary for furniture production, such as chair frames, table legs, or brackets. The utilization of steel coils facilitates the mass production of furniture components with uniform dimensions and exceptional accuracy. The robustness of steel guarantees that these components can withstand heavy loads, providing stability to the furniture. Additionally, steel coils possess the ability to be effortlessly molded into diverse shapes and sizes, enabling the creation of a vast array of furniture designs. Furthermore, steel coils are frequently subjected to protective treatments or coatings, such as paints or galvanization, in order to enhance their resistance to corrosion, moisture, and wear. This ensures that the furniture components possess a longer lifespan and retain their aesthetic appeal over time. In conclusion, the presence of steel coils plays a vital role in the production of furniture components, as they offer strength, durability, and versatility. They enable the mass production of precise and consistent components, while their protective coatings guarantee the durability and quality of the final furniture products.
- Q: every time i look for steel over the internet like to build cars motorcycles ect i only get steel pipes where can i get steel sheets
- This okorder /... Most towns have a steel supply house/ business, check your yellow pages. Also check with local welding and machine shops. They can give you ideas and or their suppliers. They often have bits and pieces that you might buy, instead of ordering a full sheet of material. Wingman
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Cold Rolled Steel/Black Steel Rolled different size
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 9000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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