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Help CenterTinplate Coil for Battery Shells 0.25mm Thickness DR8 Temper 800mm Width High Precision Slitting
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As a leading manufacturer of tinplate products, Shandong Sino Steel Co., Ltd. is proud to offer our Tinplate Coil for Battery Shells – 0.25mm Thickness, DR8 Temper, 800mm Width, High Precision Slitting. This specialized coil is engineered to meet the rigorous demands of battery casing production, combining superior formability with excellent corrosion resistance. Our advanced slitting technology ensures consistent width accuracy, directly contributing to higher yield and reduced waste for your manufacturing lines.
With a factory spanning 10,000–30,000 square meters and over 100 skilled employees, we control every stage of production – from raw material sourcing to precision slitting. Our ISO9000 and ISO19011:2000 certified processes guarantee that each coil meets strict international standards. Whether you are producing lithium-ion battery shells, alkaline battery containers, or other energy storage components, this tinplate coil provides the reliability and performance you need.
We have served customers across North America, South America, Europe, Asia, and Africa, with annual exports exceeding US$2.5 million. Our overseas office ensures prompt communication and after-sales support. Choose Shandong Sino Steel for a trusted partnership in battery materials.
Key Features & Technical Specifications
- Precision thickness control: 0.25mm ±0.01mm, ensuring uniform electrical performance in battery shells.
- DR8 Temper: Provides an optimal balance of hardness and ductility for deep-drawing and forming without cracking.
- High precision slitting: Width tolerance of ±0.1mm for 800mm width, tailored for automated battery assembly lines.
- Excellent tin coating adhesion: Prevents corrosion and ensures long battery life.
- Customizable coil parameters: Inner diameter (508mm or 610mm), coil weight, and coating weight available upon request.
- Surface finish options: Bright (B) or Matte (M) to suit your die lubricant or welding requirements.
- RoHS compliant: Free from harmful substances, meeting global environmental standards.
| Parameter | Specification |
|---|---|
| Thickness | 0.25mm (0.0098 inches) |
| Temper | DR8 (T4 CA equivalent) |
| Width | 800mm (slit to ±0.1mm) |
| Material | Low carbon steel (MR type) with electrolytic tin coating |
| Tin Coating Weight | 2.8/2.8 g/m² (standard); other options available |
| Surface Finish | Bright (B) or Matte (M) – customizable |
| Coil Inner Diameter | 508mm or 610mm (optional) |
| Standard | JIS G3303, ASTM A623, or equivalent |
Advantages for Battery Shell Production
Our tinplate coil is specifically designed for battery shell stamping. The DR8 temper offers the ideal work-hardening rate, allowing deep draws of up to 1.5 times the blank diameter without thinning. The precise 0.25mm thickness minimizes material usage while maintaining structural integrity. Additionally, the high-precision slitting ensures that each coil edge is burr-free, preventing scratches on dies and extending tool life.
- Reduced scrap rate: Consistent width and thickness translate to fewer rejects.
- Improved electrical conductivity: Uniform tin coating enhances current collection in batteries.
- Excellent weldability: Matte finish option facilitates laser or resistance welding for battery sealing.
- Flexible packaging: Coils are packed with anti-rust paper and steel strapping, suitable for sea freight.
Trust & Reliability
Since 2018, Shandong Sino Steel Co., Ltd. has grown into a reputable manufacturer with a dedicated R&D team and a modern production facility. Our products are backed by ISO9000 and ISO19011:2000 certifications, ensuring traceability and quality control. We maintain a strong presence in global markets, with exports to over 20 countries and regions. Our annual export value of US$2.5–5 million reflects the trust our customers place in us.
We ship from Qingdao, Tianjin, and Shanghai ports, ensuring efficient logistics. For your battery shell production, our tinplate coil offers a reliable, cost-effective solution. Contact us today for a quotation or to request samples. Our team is ready to support your specific requirements with customized dimensions and packaging.
Frequently Asked Questions
Q1: What is the minimum order quantity (MOQ) for this tinplate coil?
A: Our MOQ is typically 5 tons per specification. For smaller trial orders, please discuss with our sales team.
Q2: Can you supply coils with a width narrower than 800mm?
A: Yes, we offer custom slitting from 100mm to 1250mm. Widths below 800mm can be produced with the same precision tolerance.
Q3: Is the DR8 temper suitable for very deep battery shells (e.g., 18650 or 21700 cells)?
A: Yes, DR8 temper is commonly used for cylindrical battery shells. It offers good drawability while maintaining strength after forming.
Q4: What packing method do you use for export?
A: Coils are wrapped in anti-rust paper, then plastic film, and finally steel strapping with wooden pallets or steel cages for sea freight.
Q5: Do you provide third-party inspection or certification?
A: Yes, we can arrange inspection by SGS, BV, or other accredited agencies at the buyer's cost. Mill test certificates are included.
Q6: How long is the lead time for a standard order?
A: Typically 15–20 days after confirmation of order and payment. Urgent orders may be expedited upon request.
Q7: Can you supply tinplate coils with different tin coating weights?
A: Yes, we offer coating weights from 1.0/1.0 to 5.6/5.6 g/m². Please specify your requirement.
Q8: What is the hardness range for DR8 temper?
A: DR8 typically has a Rockwell hardness (HR30T) of 58–62, which is appropriate for battery shell forming without excessive springback.
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