Surface Finish Cold Rolled Steel Coil for Buildings

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Shanghai
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Basic Info.

Model NO.:SPCC

Surface Treatment:Oiled

Technique:Cold Rolled

Standard:ASTM, JIS, GB, DIN, BS

Steel Grade:SPCC

Product Description:Cold Rolled Steel

Brand Name:Cheeho & OEM

Heat Treatment:Annealed

Temper Type:Ba

Margin Status:Ec & Em

Surface Condition:Sb & SD

Surface Quality:FC & Fd

Inner Diameter:508-610mm

Approved Certificate:SGS & ISO & BV & TUV

Export Markets:Global

Additional Info.

Trademark:CheeHo & OEM

Packing:Standard Seaworthy Package

Standard:SGS & ISO & BV & TUV Approved

Origin:Jiangyin, Jiangsu, China

HS Code:72091790

Production Capacity:250000mt/Year

Product Description


Brief Introduction
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. 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 coil 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%


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
SPCC≤0.12≤0.50≤0.035≤0.025≥0.020
SPCD≤0.10≤0.45≤0.030≤0.025≥0.020
SPCE≤0.08≤0.40≤0.025≤0.020≥0.020



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Q:Can carbon steel be solution annealed?
No. Carbon steel has two different crystal structures, FCC and BCC , depending on the temperature. when you heat steel up and then quench it, it locks the crystal structure into the BCC form. this makes it hard. whereas precipitation hardened austentic stainlesses remain BCC regardless of the temp, so the hardness change is not a function of thermally induced strain. you can anneal carbon steel but the thermal profile is closer to the precipitation profile of PH stainlesses than it is to the Solution annealing profile.
Q:is alloy steel is same with stainless steel?
Is Stainless Steel An Alloy
Q:what effect does reducing the carbon content have on the properties of steel?
decreasing the carbon content fabric will strengthen the ductility, which will make it greater versatile. Carbon in metallic varieties brittle cementite (iron carbide) which will strengthen the hardness and capability of metallic.
Q:Red steel games don't look alike...?
Well, since Red Steel was one of the games that released when the Wii came out, initially people thought it was would be amazing and bought it on impulse since there wasn't a lot of options in the beginning. Turns out that the game was extremely horrible and no one liked it. So the company who made Red Steel (sorry, I forgot their name) wanted to take a totally different approach to their next game. That's why its all different. I haven't played either game so if there were any cliffhangers in the first game unfortunately you never know what happened.
Q:Why do we galvanise steel?
The coating of zinc inhibits rust. First of all the zinc does not oxidize a readily as iron (steel). If the zinc coating gets scratched it still protects the exposed iron. When the zinc and exposed iron get wet they behave like a battery. Electrons flow from the zinc layer to the iron layer. The extra electrons in the iron layer replace any that might be lost to oxidation and help keep the iron metallic. Of course now the zinc oxidizes faster so eventually all of the metallic zinc is removed and the iron is unprotected and will rust. The fact that the zinc doesn't have to cover the steel is shown in another process. To protect the steel hulls of ocean going ships a block of zinc is attached to the bottom. The electrical circuit behaves as described above. When the zinc block has dissolved they just attach another one. If they keep this up the hull of the ship remains corrosion free. A tin coating on steel (as in a tin can) works just the opposite. When the tin is scratched the electrons flow from iron to tin so the iron rusts faster than it would have with no tin.
Q:What is Damascus steel.?
Damascus or Wootz was a type of steel that appeared around 300BC It originated in India before spreading throughout Asia and the Middle East. It was considered a good steel, and for it's date of origin, exceptionally advanced for the level of technology in the ancient world. However the techniques to create the steel were lost forever after a decline in the swords manufacturing. The most popular theory is that the metal containing the required trace elements became less available over time due to unreliable trade routes. In the modern area, many scientists and metallurgists have studied the surviving blades, resulting in many discoveries such as evidence of carbon molecules fused in a crystalline structure. While the blades do provide some clues, it's only a small part of a much bigger picture as to the full process of the metal from raw to finished product. Now many have claimed to have recreated Damascus/Wootz steel, but none are recognised as being authentic. It has become a market ploy these days that draws people to purchasing the blades but all you are actually seeing is one of the many various forms of folded or patterned steel, which has varying degrees of quality, strength etc. We do know the steel was folded similar to the way the Japanese did in creation of old Katana, so often people will sell Damascus steel Katana that are nothing but folded steel swords like others. (Which is beautiful and traditional, but was a process designed to uniform impurities in the metal, something we no longer need to do with modern metals)
Q:Can I put nylon strings on my steel string acoustic guitar?
No, okorder.com/... You will want a full size or possibly a 3/4 size guitar. A 3/4 size guitar is a little smaller and will be closer in neck width to a steel string guitar. I used one like that when I started out playing when I was young. Avoid the cheap ones on Amazon that only cost $30-$50.
Q:Why should you heat thicker steel before welding?
:you could attempt welding with whats pronounced as a filler rod. you could weld with the a million/8 rod interior the welder stinger and by conserving the a million/sixteen rod in the different hand, upload it as you weld.
Q:steel residential homes and solar energy?
Guide okorder.com/

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