| Product Name | Cold Rolled Steel Coil |
| Material | SPCC, DC01,DC02, DC03, DC04, ST12 |
| Thickness
| 0.8-2.5mm
|
| Width | 500-1500mm |
| Length | As request |
| Oiled or Non-oiled | Slightly Oiled
|
| Coil Weight | 3-8 Tons |
| Hardness | Mid hard/Full hard |
| Coil ID
| |
| Delivery Time | 10-25 days |
| MOQ | 25 Tons |
| Payment Term | 30%T/T Advance + 70% Balance |
| Package | Standard Sea Worthy Package |
About Cold rolled coil
Cold rolled coil is a high-precision steel product made of hot rolled coil as raw material and rolled below recrystaling temperature at room temperature, including steel plate (delivered in sheet) and steel strip (delivered in coil). Through pickling, cold rolling, annealing, leveling and other processes, the product has the characteristics of high surface finish (no oxide scale/pitting defects), excellent dimensional accuracy (thickness deviation ≤±0.02mm), controllable mechanical properties, can meet the special needs of electromagnetic performance, deep drawing performance and so on. Specification range: thickness 0.2-4mm, width 600-2000mm, length 1200-6000mm, support customized production.Core advantages: As the source factory, we adopt the whole process of independent production, strictly control every link from raw materials to finished products, to ensure that the products meet the British standard (BS 1449), American standard (ASTM), European standard (EN 10130) and other international standards, and provide flexible delivery plan.
The whole process production process
Pretreatment of raw materialsThe hot rolled coil is pickled to remove the oxide layer and ensure the surface of the substrate is clean.Cold rolling formingMulti-pass rolling (continuous rolling unit) with process lubrication, reduce deformation resistance, precise thickness control.Annealing and levelingCover annealing eliminates the internal stress and restores the plasticity of the material. The leveling process improves the flatness of the plate (waviness ≤2mm/m).Finishing and quality inspectionLaser cutting/straightening ensures dimensional accuracy, fully automatic flaw detector detects surface defects, 100% passed ISO 9001 quality inspection standards. Material and process advantagesLow carbon steel substrate: low carbon steel grades such as Q195, Q235, SPCC and ST12 are selected to ensure excellent cold bending, welding and stamping performance.Precision rolling technology: four-high/multi-high rolling mill (such as 20-high rolling mill) combined with high-tension rolling process can achieve precision control of thickness error ≤0.01mm, especially suitable for ultra-thin specifications (thinest up to 0.001mm) production.Annealing treatment: Work hardening was eliminated through hood annealing, and the plasticity of the material was restored (the elongation increased by more than 30%) to meet the high forming requirements such as deep drawing and drawing.Performance PerformanceSurface quality: finish up to Ra≤0.8μm, which can be directly used for surface treatment such as galvanizing and spraying.Mechanical properties: yield strength 180-400MPa, tensile strength 270-500MPa, supporting the strength requirements of different application scenarios (such as high strength for automotive structural parts and high plasticity for home appliance shells).Environmental protection: The production process adopts circulating lubrication system to reduce energy consumption and waste discharge, in line with green manufacturing standards.
| | | |
| | Body panels, doors, hood (high deep impact performance) | DC05/DC06 (European standard), SPCE (Japanese standard) |
| | Refrigerator shell, washing machine inner tube, air conditioning panel (high surface finish) | ST12 (German standard), SPCC (American Standard) |
| | Light steel keel, curtain wall supporting structure, roof plate (high strength weather resistance) | Q345B (GB), CR4 (British standard) |
Manufacturing of machinery | Precision instrument support, machine tool housing, conveyor belt roller (high dimensional stability) | Q235A (National standard), ASTM A366 (American Standard) |
| | Metal tank, bottle cap (ultra-thin specification processing) | DC01 (European standard), SPCC-1B (rolled hard coil) |
Electronic device manufacturing | Circuit board substrate, electronic component housing, shielding materials (high conductivity and corrosion resistance) | C1020 (Japanese standard), H08A (Chinese standard) |
Q: Are you trading company or manufacturer ?
A: We are professional manufacturer for steel ,and our company also is a very professional and technical foreign trade
company for steel products. We have more export experience with competitive price and best after-sales service. Apart from this,we can provide a wide range of steel products to meet the requirement of customer.
Q: Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time no matter if the price change lot or not. Honesty is our company's tenet.
Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours. Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out a best price soon.
Q: Do you accept the third party inspection?
A: Yes absolutely we accept.
Q: Do you provide samples ? is it free or extra?
A: The sample could can provide for customer with free,but the freight will be covered by customer account. The sample freight will be returned to customer account after we cooperate.
