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 steel coil surface treatments?
- The different steel coil surface treatments include mill finish, galvanized, galvannealed, painted, and coated with various materials such as zinc, aluminum, or polymer.
- Q: What is the thickness of a steel coil?
- The thickness of a steel coil can vary depending on the specific requirements and application. Typically, the thickness of a steel coil can range from a few millimeters to several centimeters.
- Q: What are the dimensions of steel coils used in the electrical equipment industry?
- The dimensions of steel coils utilized in the electrical equipment industry may differ based on the particular application and requirements of the equipment being produced. However, there are certain dimensions that are commonly employed in this industry. Typically, the width of steel coils employed in the manufacturing of electrical equipment ranges from 0.5 inches to 72 inches (1.27 cm to 182.88 cm). The thickness of these coils can vary from extremely thin, measuring 0.005 inches (0.0127 cm), to considerably thick, measuring 0.25 inches (0.635 cm). The length of steel coils employed in the electrical equipment industry can also vary, but it is often determined by the production process and the specific equipment being manufactured. Coils can range in length from a few feet to several hundred feet. Moreover, the weight of steel coils can differ based on their dimensions and the type of steel being utilized. For example, a common weight range for steel coils employed in the electrical equipment industry falls between 5,000 pounds (2,268 kg) and 50,000 pounds (22,680 kg). It should be noted that these dimensions are not fixed and can vary depending on the specific requirements of the electrical equipment industry. Manufacturers may have their own distinct specifications and requirements for the steel coils they utilize in their products.
- Q: How are steel coils shipped internationally?
- Steel coils are shipped internationally using various methods to ensure their safe and efficient transportation. The most common method is through container shipping, where steel coils are loaded into standard shipping containers for transportation. These containers are specifically designed to handle heavy and bulky cargo, such as steel coils. To load the steel coils into the containers, they are usually stacked horizontally and secured with steel strapping or metal bands to prevent movement during transit. This ensures stability and minimizes the risk of damage. Additionally, wooden or metal dunnage may be used to separate and secure the coils to further prevent shifting. Once loaded, the containers are sealed and transported to the port using trucks or trains. At the port, the containers are loaded onto cargo ships, either by crane or using specialized equipment such as roll-on/roll-off (RO-RO) vessels or semi-submersible ships. These ships provide a secure environment for the steel coils during the journey, protecting them from weather conditions and potential damage. During the voyage, the steel coils are subjected to various safety measures to prevent corrosion and protect their integrity. These measures include applying protective coatings, such as oil or special paints, and using desiccants or humidity control systems inside the containers to regulate moisture levels and minimize the risk of rusting. Upon reaching the destination port, the containers are unloaded from the ship and transferred to trucks or trains for further transportation to their final destination. At this stage, the steel coils may undergo customs clearance and inspection procedures before being delivered to the intended recipients. Overall, international shipping of steel coils involves meticulous planning, secure packaging, and the use of specialized containers and equipment to ensure their safe and successful transport.
- Q: I feel really stupid asking this question but i feel like a put metal/steel strings on my classical guitar how do you tell the difference?
- you do NOT want to put steel strings on a nylon string guitar, it will ruin it. It does get a little confusing. With steel strings, all 6 strings are metal. (usually steel, but not always, nickel, copper may be used too) And they use a steel core. with nylon strings, the high 3 strings, are obviously nylon/plastic. the 3 bass strings look metal, but they have a silk type core, with metal wrapped around it. The steel strings have a LOT more tension,, they can break the plastic tuners, beak the nut, pull the top up, and pull the bridge off, If you're not sure yet, have a real music store explain it, not a toy store, or costco or walmart.
- Q: i would like to make a dmascus steel knife, i have the cable but im not sure if its damascus steel or not, how do i tell? and if it isnt damascus steel how do i make a bar of it?
- Here's what you need, the cable should be a minimum of 9/16 with large wires. You need some borax (20 mule team from the store). A good hot coal, coke, or gas forge. If the cable has fiber rope in the center it will need to be removed. Fuse the ends of the cable to keep them from coming apart. I use my welder and while I'm at it I weld a handle to make it easier. Heat it in the forge when the forge is properly heated, rotate it. Some people will burn the oil out, but I've found that the forge does that just fine. Rotate the cable while it's heating. When it begins the turn red pull it out and sprinkle the borax over it, don't hold back use a lot. It will begin to melt and bubble into the steel. Put the cable back in the forge, rotate and watch. This is the critical part. When the steel starts to turn from orange/yellow to almost yellow/white take it out and lightly (I use a 2lb hammer) begin hammering the cable into a square or rectangle. If you do it right you'll notice that it will begin to fight the hammer, that's when you know the weld it taking place. You'll have to repeat the process down the length of the cable. Once you have the billet made you can begin the process of shaping the edge and tang. Once you have it shaped, follow proper forge procedure then grind all the yuck off and finish shaping. Then harden and temper and finish it out. Good luck. I almost forgot a very important part. Befor you start hammering put the cable in a vice while at welding temp (if you are strong you can use a couple of plyers) and twist it tight. On the next heat hold the cable in your left and and lay it on the anvil. Concentrate on your light hammer blows being on your side of the cable. This forces the cable strands together. If you are using smaller cable like 9/16 you can double the cable up and weld two peices together, it is easier and makes for a prettier blade. Doing this you don't have to worry about twisting the cable and you can hit it much harder to start with.
- Q: I beat fallout 3 and i downloaded broken steel expansion. I have no idea how to get to broken steel in other words i do not know how to start playing it.
- after-wards you will have to sit through the end movie, which I felt was longer than the original, then the broken steel part will start, which I wont ruin. If your still having problems, go into your DLC and delete broken steel, and re-install it.
- Q: What are the different coil surface finishes?
- There are several different coil surface finishes, including mill finish, brushed finish, embossed finish, and coated finish.
- Q: Steels like YHB-2, MVS-8, and SK-5. Also if you know anything about these steels that would be helpful.
- White steel is a common shorthand name for white paper steel (shirogami hagane) which can be any of several fairly simple high carbon, water hardening steel grades. The carbon content varies by grade, and runs from 0.8 to 1.4%. The range of carbon content within a grade is a tight 0.1%. For example, the carbon content of Shirogami Hagani No1A is specified to be between 1.3 and 1.4%. Each grade also contains 0.1-0.2% silicon and 0.2-0.3% manganese, and only trace amounts of the impurities sulfur and phosphorus. Blue paper steel (aogami hagane) is also offered in several grades, with carbon content ranging similarly to the white grades. However, blue steel contains the additional alloying elements chromium and tungsten, and one grade (aogami super) also contains molybdenum and vanadium. The blue steels can be quenched in water or oil, whereas most of the white grades need a faster quench and require water.
- Q: Hi, I have ranch style home. I would like to remove a barring wall, And leave it open it will become a 18' foot 7 inch opening , and I'm interested in installing a steel beam so that i may remove the barring wall that supporting the ceiling and rafters. My house is about 57' feet long 28' feet 7 inch wide and it is 13' feet high from the floor to the top of the roof ridge. I heard there is aluminum beams but I never heard of that, I've only heard of steel beams. I don't want to use wood. I would also like to now how much longer do i need the beam to be the opening would be 18'7 plus the extra that i would need to put on the block wall to hold the beam up, do I make it 2' feet bigger so i can have a foot on each side that would sit on a block wall. or do i need more then that.THanks for your help
- My okorder for help
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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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