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Help CenterTinplate Sheet 0.25mm, DR9 Temper, 1.1/1.1g/m2 Tin Coating, for Electronic Components
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Shandong Sino Steel Co., Ltd. is a professional manufacturer of high-quality tinplate sheets, and we are proud to present our 0.25mm DR9 Temper Tinplate Sheet with a precise 1.1/1.1 g/m² tin coating. Since our establishment in 2018, we have grown into a trusted supplier for electronic component manufacturers worldwide, leveraging our factory size of 10,000–30,000 square meters and a dedicated team of 101–200 employees. Our tinplate is engineered to meet the exacting demands of the electronics industry, offering superior corrosion resistance, excellent solderability, and consistent thickness for precision stamping and deep drawing applications.
This product is specifically designed for electronic components such as shielding cans, battery contacts, connectors, and capacitor casings. The DR9 (Double Reduced) temper provides high strength and rigidity while maintaining a smooth surface, making it ideal for parts that require tight tolerances and durability. The equal tin coating of 1.1 g/m² on both sides ensures reliable protection against oxidation and excellent electrical conductivity.
Below is a detailed overview of the key specifications and features:
| Parameter | Value |
|---|---|
| Thickness | 0.25 mm (±0.005mm tolerance) |
| Temper | DR9 (Double Reduced, Rockwell hardness HR30T ~ 60-65) |
| Tin Coating | 1.1/1.1 g/m² (both sides, equal coating) |
| Width | Customizable – typically 600-1200mm (standard coil ID: 508mm) |
| Surface Finish | Bright finish (matte finish available on request) |
Key Features & Benefits:
- High Precision Thickness: The 0.25mm gauge is tightly controlled to ensure consistent performance in automated stamping lines, reducing waste and downtime.
- DR9 Temper for Strength: Double-reduced temper offers higher yield strength compared to single-reduced grades, making it suitable for thin-wall electronic components that require rigidity.
- Excellent Corrosion Resistance: The 1.1/1.1 g/m² tin coating acts as a barrier against moisture and chemicals, extending the lifespan of electronic parts.
- Superb Solderability: Tin coating ensures easy wetting and reliable solder joints, critical for PCB assembly and connector manufacturing.
- Uniform Coating Distribution: Both sides receive equal coating weight, guaranteeing balanced performance and preventing warpage during processing.
- Customizable Dimensions: We offer slitting and shearing services to meet specific width and length requirements, reducing secondary processing for customers.
- RoHS Compliant: Our tinplate is free from harmful substances, meeting global electronic component regulations.
Our tinplate sheet is available in both sheet form and coil form (optional). For electronic components, the 0.25mm thickness combined with DR9 temper provides an optimal balance of formability and strength. Typical applications include:
- Shielding cans for RF modules
- Battery terminals and contact springs
- Capacitor enclosures
- Lead frames for integrated circuits
- Electromagnetic interference (EMI) shielding parts
Quality Assurance: We are certified under ISO9000 and ISO19011:2000, ensuring that every production batch undergoes rigorous testing for thickness, coating weight, hardness, and surface quality. Our factory in Qingdao, Shandong, China, operates with advanced rolling and annealing lines, and we maintain an overseas office to support international clients. With an annual export value of US$2.5–5 million, we ship to over 30 countries across North America, South America, Eastern Europe, Southeast Asia, Africa, the Middle East, and other regions.
We invite you to partner with Shandong Sino Steel for your tinplate needs. Our experienced team provides technical support, sample availability, and flexible packaging options (standard seaworthy wooden crates or steel pallets). Contact us today to request a quote or ask for a free sample to test in your production line. We are committed to delivering consistent quality, competitive pricing, and reliable delivery from the ports of Qingdao, Tianjin, or Shanghai.
Frequently Asked Questions
Q1: What is the difference between DR9 and other tempers like T4 or T5?
A: DR9 is a double-reduced temper offering higher strength and hardness compared to single-reduced tempers (e.g., T4, T5, T6). It is ideal for applications where the material needs to be thin yet strong, such as electronic components. The Rockwell hardness for DR9 is typically HR30T 60-65, while T4 is around 53-58.
Q2: Can you provide tinplate with a different coating weight, e.g., 2.8/2.8 g/m²?
A: Yes, we offer a range of tin coating weights from 1.1/1.1 to 11.2/11.2 g/m². The 1.1/1.1 g/m² is typical for electronic components where light coating is sufficient. Custom coating weights are available upon request with minimum order quantity.
Q3: Is this tinplate suitable for deep drawing?
A: DR9 temper is not recommended for deep drawing due to its high hardness; it is more suitable for bending, stamping, and forming operations with moderate deformation. For deep drawing, we recommend a softer temper like T4 or T5. Contact our technical team for application guidance.
Q4: What is the standard sheet size and how is it packed?
A: Standard sheet size is 1000mm x 800mm or 1200mm x 1000mm; however, we can customize dimensions. Sheets are packed in wooden crates or steel pallets with protective layers to prevent scratching during transit.
Q5: Do you offer samples before bulk order?
A: Yes, we provide free samples (shipping cost covered by customer) for quality evaluation. Lead time for samples is typically 3-5 working days.
Q6: What is the minimum order quantity (MOQ)?
A: MOQ for standard tinplate sheet is 5 tons. For customized dimensions or coating, the MOQ may be higher. Please contact us for details.
Q7: How do you ensure the tin coating is uniform on both sides?
A: Our production process uses advanced electroplating lines with precise current control. Each coil is tested using X-ray fluorescence (XRF) to verify coating weight per side. Certificates of analysis are provided with each shipment.
Q8: Can this product be used for food-grade applications?
A: While our tinplate meets general industrial standards, the 1.1/1.1 g/m² coating is typically used for electronic components, not food contact. For food-grade applications, we recommend higher coating weight (≥2.8 g/m²) and specific surface treatment. Please consult our sales team.
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