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Carbon steel coil is steel that has been roll-pressed at very high temperatures—over 1,700˚F, which is above the re-crystallization temperature for most steels. This makes the steel easier to form, and resulting in products that are easier to work with.
To process ,carbon coils, manufacturers first start with a large, rectangular length of metal, called a billet. The billet is heated and then sent for pre-processing, where it is flattened into a large roll. From there, it is kept at a high temperature and run through a series of rollers to achieve its finished dimensions. The white-hot strands of steel are pushed through the rollers at high speeds. For sheet metal, rolled steel is spun into coils and left to cool. For other forms, such as bars or plates, materials are sectioned and packaged.
Steel shrinks slightly as it cools. Since hot rolled steel is cooled after processing, there is less control over its final shape, making it less suitable for precision applications. Hot rolled steel is often used in applications where minutely specific dimensions aren't crucial. Railroad tracks and construction projects often use hot rolled steel.
Steel coil can often be identified by the following characteristics:
A scaled surface—a remnant of cooling from extreme temperatures
Slightly rounded edges and corners for bar and plate products (due to shrinkage and less precise finishing)
Slight distortions, where cooling may result in slightly trapezoidal forms, as opposed to perfectly squared angles
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Product name |
Carbon Steel Sheet |
|
Standard |
ASTM A778 , ASTM A312,JIS G3448, EN10312, CJ/T 151 |
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Material |
Carbon steel :Q195-Q420 Series,SS400-SS540 Series,S235JR-S355JR Series,ST Series,A36-A992 Series,Gr50 Series,etc. |
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Surface |
Mild steel plain finish, hot dip galvanized, color coated, ect. |
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Type |
Coil/Sheet/Plate/Strip |
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Thickness |
1.0~100mm,or customer's requirement |
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Width |
600~3000mm (normal size 1250mm, 1500mm, 1800mm, 2200mm, 2400mm, 2500mm)according to customer's requirement |
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Type of Coating |
Hot Dipped Galvanized Steel(HDGI) |
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Surface Treatment |
Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) |
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Surface Structure |
Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS) |
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Quality |
Approved by SGS,ISO |
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Payment term |
L/C T/T (30% Deposit) |
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Main Product:
Carbon Steel Plate,
Mild Steel Plate,
Carbon Steel Coil,
Galvanized Steel Plate,
Prepainted Galvanized Steel Coil ,
Galvanized Steel Sheet
