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Help CenterSteel Coil & Strip & Cold‑Rolled Coil，DC01、DC03、DC04、DC05、DC06，ASTM A1008 CS‑A/B
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Cold‑Rolled Coil is high‑precision steel coil produced by continuous cold rolling, annealing and temper leveling using hot‑rolled pickled coil as raw material. In the industry, Cold‑Rolled Coil, Cold‑Rolled Steel Coil and Cold‑Rolled Sheet Coil are collectively defined as cold‑worked carbon steel plate materials, featuring precise dimensional tolerance, bright oxide‑free surface and excellent stamping formability. It acts as widely‑consumed basic raw material for home‑appliance manufacturing, auto spare parts, hardware stamping, electrical cabinets and metal furniture industries>. Cold‑Rolled Coil mainly includes two mainstream categories: ordinary Cold‑Rolled Steel Coil and deep‑drawing grade Cold‑Rolled Sheet Coil. Ordinary Cold‑Rolled Steel Coil delivers moderate plasticity and cost‑effective performance, widely used for general sheet‑metal parts, cabinet shells and hardware fittings under common bending & stamping conditions. Deep‑drawing grade Cold‑Rolled Sheet Coil features pure material and high elongation rate, suitable for complex deep‑drawing forming for automotive interior parts, home‑appliance housings and other complicated formed components. Produced by complete process including hot‑rolled base‑material pickling & descaling, multi‑stand continuous cold rolling, batch annealing, temper leveling, oiling and coiling, Cold‑Rolled Coil obtains stable flat shape. Cold‑Rolled Steel Coil owns controllable thickness tolerance and bright surface with good adhesion for subsequent painting and electroplating. Cold‑Rolled Sheet Coil features uniform metallographic structure and outstanding crack‑resistance performance, resisting crack defects after repeated stamping. Cold‑Rolled Coil has complete specifications and sufficient stock. Deep‑processing services such as slitting, shearing to sheet, film laminating and surface polishing are available. Custom special thickness, hardness and surface finish can be produced on demand.Cold‑Rolled Steel Coil and Cold‑Rolled Sheet Coil adapt to various engineering projects including automobile, home‑appliance, hardware, electrical‑equipment and metal‑furniture industries. Cold‑Rolled Coil is core basic steel material for precision sheet‑metal stamping industry.
1. Material Grade
‑ Domestic Grades: Q195, Q235B, SPCC, SPCD, SPCE, ST12, ST13, ST14
‑ Export Grades: DC01, DC03, DC04, DC05, DC06, ASTM A1008 CS‑A/B, commercial / drawing / deep‑drawing / extra‑deep‑drawing grades available
2. Execution Standards
‑ GB/T 708‑2019 Cold‑rolled steel sheets and strips, core national standard for Cold‑Rolled Coil
‑ International Standards: EN 10130, JIS G3141, ASTM A1008, complying with foreign‑trade project acceptance. Cold‑Rolled Steel Coil and Cold‑Rolled Sheet Coil support full‑set tests including tensile test, impact test, hardness test and surface‑quality inspection.
3. Specification Parameters
Cold‑Rolled Coil thickness:0.12‑3.5mm, width:600‑1500mm; coil inner diameter:508mm/610mm, coil weight:5‑15 tons. Slitting and shearing into flat Cold‑Rolled Sheet Coil sheets are available, special thickness & width can be customized. Cold‑Rolled Steel Coil owns flat shape and strict thickness tolerance to meet sheet‑metal blanking, bending and stamping processing.Cold‑Rolled Sheet Coil obtains clean surface free from pitting and scratches with qualified deep‑drawing performance, high‑precision Cold‑Rolled Coil can be supplied from stock. All Cold‑Rolled Coil support shearing, slitting, film laminating and oiling treatment, non‑standard sizes and surface‑grade requirements can be customized according to customer drawings.
4. Surface Treatment
‑ Mill‑oiled finish (regular for Cold‑Rolled Coil): anti‑rust oil coating to avoid oxidation & rust during storage, suitable for subsequent painting and electroplating.
‑ Dry unoiled surface: no anti‑rust oil on surface, widely adopted for direct spraying processing of Cold‑Rolled Steel Coil.
‑ PE film lamination: surface protective PE film to prevent scratch during processing, applied for appearance‑part production of Cold‑Rolled Sheet Coil for home‑appliance industry.
‑ Cold‑Rolled Steel Coil and Cold‑Rolled Sheet Coil support FB/FC/FD different finishing surface grades for domestic warehouse storage and sea‑export container loading.
5. Main Applications
Cold‑Rolled Coil is widely used in automotive spare parts, home‑appliance housings, electrical switch cabinets, metal furniture, hardware stamping parts and instrument chassis fields>. Cold‑Rolled Steel Coil is mostly applied for ordinary sheet‑metal parts, cabinet shells, storage racks and hardware fittings for bending and simple stamping forming. Cold‑Rolled Sheet Coil serves for automotive interior & exterior parts, refrigerator & washing‑machine shells and complex deep‑drawn workpieces under high‑difficulty deep‑drawing forming conditions. Enterprises of automobile, home‑appliance and hardware equipment select Cold‑Rolled Coil according to forming difficulty and surface grade. Cold‑Rolled Steel Coil is preferred for ordinary sheet‑metal stamping, and Cold‑Rolled Sheet Coil for complex deep‑drawing forming, giving full play to advantages of Cold‑Rolled Coil such as high dimensional precision, bright surface and excellent stamping performance.
6. Packing, MOQ & Lead Time
‑ Packing: Cold‑Rolled Coil wrapped inside‑outside with anti‑rust paper, tightly bundled by steel strips with product labels attached, rain‑proof & moisture‑proof outer wrapping to avoid surface scratch & collision damage during land transportation and sea‑export container loading.
‑ MOQ: Minimum order 3 metric tons, mixed batch of Cold‑Rolled Steel Coil and Cold‑Rolled Sheet Coil is available, small‑batch trial orders negotiable.
‑ Lead Time: 3‑7 working days for regular stock Cold‑Rolled Coil; 7‑12 working days for shearing, slitting and film‑laminating deep processing. Mill certificates and mechanical‑property test documents are provided; third‑party SGS inspection is acceptable. Support FOB, CIF, DAP and other international‑trade terms.
7. Product Advantages
Cold‑Rolled Coil is produced by room‑temperature rolling with small thickness tolerance and high flatness, ensuring good dimensional consistency of finished parts and reducing trimming waste after processing.
Cold‑Rolled Steel Coil owns oxide‑free high‑quality surface, excellent coating adhesion for painting and electroplating for good finished‑product appearance.
Cold‑Rolled Sheet Coil supplies multiple deep‑drawing grades with outstanding elongation performance, resisting cracking during complex deep‑drawing forming for precision auto & home‑appliance components.
Cold‑Rolled Coil supports shearing, slitting and film‑laminating with flexible processing modes, delivered in coil or flat sheet form to adapt to automatic stamping production lines.
Full‑range Cold‑Rolled Coil has complete qualification documents with batch‑by‑batch mechanical‑property inspection support. Cold‑Rolled Steel Coil andCold‑Rolled Sheet Coil fully meet procurement standards for domestic manufacturing projects and global foreign‑trade export.
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