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?Soft Commercial Cold Rolled Steel Coil , Cold Rolled Plate Steel Coil Full Hard Deep Drawing ??
Production Flow of cold rolled steel coil
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Brief introduction of main equipment of cold rolled steel coil
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(1) Pickling lines
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The Raw material is hot rolled steel coil (HR), HR coil weight is always more than 20T. The thickness of HR is always more than 2.5mm thickness.
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The purpose of the pickling lines is to remove the metal surface oxide.
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(2) Cold rolling mill
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The cold rolling mill is to roll the coil to required thin thickness, such as roll from 3.5mm to 0.5mm, 1.0mm.
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Five stand tandem CRM
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(2) Annealing Line
There are two different kinds anneal:
A: Continuous annealing Line: thickness: 0.4mm to 2.0mm
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B: Annealing Furnace: thickness: 0.3mm to 2.0mm
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(4) Slitting Line
The Slitting Line could cut the coil to any length according to requirement.
??Product Description??
Cold Rolled Steel Coil 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 Coil 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 Coil 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 Sheet 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 Coil Sheet may be manufactured in the form of sheets, strips, bars, or other forms.
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Applications:
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Construction | roof and roof component, outside walls of civilian and industrial buildings, garage doors and window blinds. |
Houshold appliances | washing machine, refrigerator, television, air conditioner and ventilation system, Vacuum cleaner, solar water heater. |
Transportation | car ceiling, auto Industry Muffler, heat shields of exhaust pipe and catalytic converter, the ship bulkhead, highway fence. |
Industry | industrial Instruments Electric control cabinet, industrial refrigeration equipment, automatic vending machine. |
Furniture | lampshade, counter, signboard and medical facility etc. |
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Superiority
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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
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Competitive Advantage:
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Our company is specialized in import and export of coils & plates of HRC, CRC, GI, GL, and PPGI, strips, U-channels, C-channels, CRNGO, etc. The future goods and stock goods are available. We have established very close business relationships with both state-owned and privately owned steel mills in China. Our export markets cover Asia, Europe, America and Africa.
Located in Zhangjiagang City, which is one of the Civilized Cities in China and has the largest international river port in China - Zhangjiagang Port, we have a very obvious location advantage, only one hundred kilometers away from Shanghai, with a well-developed logistics industry. We are also strongly supported to purchase these materials in Yangtze River International Metallurgical Industrial Park in this city.
We are a very experienced international trading team focusing on steel business, with flexible marketing strategy and superior before-sales and after-sales service. We sincerely expect friends from all over the world to join us to have common development and share the achievement with us.
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Specification
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1. Thickness: 0.4-2.0mm
2. Width: 900-1250mm
3. Inner Diameter: 508-610mm
4. Weight of Steel Coil: 3-15MT
5. Heat Treatment: Box Annealed
6. Margin Status: EC & EM
7. Surface Quality: FB & FC
8. Surface Treatment: Oiling
9. Surface Status: Bright & Dull & Black
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Chemical Components
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Grade | Chemical Components |
C | Mn | P | S | Alt |
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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