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 storage tanks?: Steel coils are used in the manufacturing of storage tanks as they serve as the primary material for constructing the tank shell. The coils are processed and shaped into cylindrical sections, which are then welded together to form the tank. This ensures strength, durability, and leak-proof construction, making steel coils an essential component in the fabrication process of storage tanks.

Q:I want to buy steel. My problem is i purchase it from a middle man, so i need to know what MIld steel is. What it's real name or specifications is/are. I dont want to end up purchasing Black steel or other stuff i can sell or use...: Mild okorder /... Seamless usually refers to a method for making tubing, as opposed to the alloy of steel. Seamless tubing is usually drawn, rather than made from a sheet welded into the form of a tube.

Q:The length of a steel beam increases by 0.78 mm when its temperature is raised from 22 degrees C to 35 degrees C. What is the length of the beam at 22 degrees C (in meters)?I used: L = (0.78 mm)/[(9/5)(.00000645 F)(13)] = 5.17 meters but Mastering Physics said Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures. I'm confused because this is how we learned this kind of problem in class, so if anybody knows what I did wrong, feel free to correct my errors! Thanks: we may use the formula ΔL=α(Lo)(Tf-To) where Lf is the length of steel at temp. Tf Lo is length at To α is the coefficient of linear expansion of steel which is 11x10^-6/°C ΔL=0.78mm (the change in length) Lo=? ΔL=α(Lo)(Tf-To) Lo=ΔL/[α(Tf-To)] Lo=(0.78x10^-3m)/[(11x10^-6/°C)(35°C-2...? Lo=5.455m answer

Q:Explain why a steel nail sinks but a steel ship floats.: Its all about dispersing.weigh and mass. Over a larger area .And the surface tention of the water.A piece of glass will float as long as the water is calm. and doesn't break over the edge of the glass. I don't remember the formula. been away from school to long.

Q:i have been playing with hand me down graphite shaft irons and wedges. i was wondering if someone of my stature (5'3, 90 lbs., 12 years old) should be using steel shafted irons. i can definately swing them im just wondering if they are better for making contact: Steel will give you more consistency as they don't flex as much as graphite but at the same time are less forgiving. Graphite can give you more flex which increases club head speed for distance but you lose some consistency. I would say stick with your current clubs being your only 12yo and will being a lot in the next 5-6 years. You don't want to be stuck at 17yo and 5'10 swinging clubs that are for someone much shorter.

Q:How are steel coils protected from condensation?: Steel coils are typically protected from condensation by applying a thin layer of oil or another corrosion-resistant coating to the surface. This acts as a barrier, preventing moisture from coming into direct contact with the steel and minimizing the risk of condensation forming. Additionally, the coils are often stored in a controlled environment with proper ventilation to minimize humidity levels and prevent condensation from occurring.

Q:How are steel coils packaged for shipping?: Steel coils are typically packaged for shipping by being tightly wound and secured with steel strapping or bands. They are then placed onto pallets or into crates to protect them during transportation. Additionally, wooden or metal dunnage is often used to separate and stabilize the coils, ensuring they remain intact and in proper condition throughout the shipping process.

Q:What are the common applications of steel coils in construction?: Steel coils are commonly used in construction for a variety of applications such as roofing, wall cladding, structural beams, and framing components. They provide strength, durability, and versatility, making them ideal for supporting and reinforcing various structures and ensuring their stability and longevity.

Q:What are the typical lead times for steel coil orders?: The typical lead times for steel coil orders can vary depending on factors such as the quantity, specifications, and availability. However, on average, lead times can range from a few weeks to several months. It is recommended to check with the specific supplier or manufacturer for accurate lead time estimates.

Q:Hello,I have been thinking about buying a Tungsten Carbide Diamond wedding band for my husband but one of my family members keep telling me that Tungsten Carbide is merely steel and hence, a low quality metal, therefore, I shouldn't buy it. I don't really know much about it. Please if anyone can tell me more about this metal? Thanks.: Tungsten is not steel. Tungsten is a chemical element. What they do is add an alloy mixture to tungsten and it turns into Tungsten Carbide. You want to find a ring with a nickel alloy, some manufacturers cheap out and add cobalt instead. Make sure the ring you buy does not contain cobalt. Steel is an alloy consisting mostly of iron, with a carbon.

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