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Help CenterMR Grade SPCC Tinplate Sheet Electrolytic 0.19mm Thickness 5.6g/m2 Coating for Industrial Parts
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Shandong Sino Steel Co., Ltd. is a professional manufacturer of cold-rolled steel and coated steel products, located in Qingdao, China. Since our establishment in 2018, we have focused on producing reliable steel materials for industrial customers around the world. Our MR grade SPCC electrolytic tinplate sheet with 0.19mm thickness and 5.6g/m2 tin coating is specially developed for industrial parts that require high corrosion resistance, precise dimensional accuracy, and excellent processing characteristics. As a factory-direct supplier, we ensure consistent quality and competitive pricing for every order.
Product Overview
The electrolytic tinplate is manufactured using SPCC grade cold-rolled low-carbon steel, which provides excellent formability and weldability. The MR grade metallurgical composition ensures lower phosphorus and nitrogen content, resulting in improved corrosion resistance under various environmental conditions. The electrolytic tin coating of 5.6g/m2 is applied uniformly on both surfaces, offering dependable protection against oxidation while preserving the material's ability to be soldered, printed, and painted. This 0.19mm tinplate is an ideal substrate for manufacturing industrial parts such as electronic components, battery shells, automotive small parts, chemical containers, and various stamped metal products.
Key Features and Benefits
- Excellent Corrosion Resistance: The 5.6g/m2 tin layer effectively protects the steel base from rust and chemical attack, extending the life of finished parts.
- Superior Formability: SPCC steel with controlled hardness allows deep drawing, bending, and stamping without cracking, ensuring smooth production.
- Reliable Solderability: The pure tin surface supports strong solder joints, essential for electrical and electronic components.
- Uniform Coating: Electrolytic deposition produces a dense and even tin layer with consistent thickness across the sheet.
- Lightweight and Thin: At 0.19mm, the tinplate reduces the weight of finished products while maintaining adequate strength for structural applications.
- Customizable Surface Finish: Bright, stone, or matte surfaces are available to meet specific aesthetic or processing requirements.
- Recyclable Material: Tinplate is recyclable and supports sustainable manufacturing practices.
Technical Specifications
| Material | SPCC cold-rolled low-carbon steel |
| Grade | MR |
| Thickness | 0.19 mm (±0.01 mm) |
| Tin Coating Weight | 5.6 g/m2 (electrolytic tin coating) |
| Surface Finish | Bright, stone, matte (optional) |
| Temper Grade | T2, T3, T4, T5 (available upon request) |
| Available Width | 600 mm - 1250 mm (customizable) |
| Coil Inner Diameter | 508 mm or 610 mm (optional) |
| Coil Weight | 3 - 8 tons (customizable) |
Manufacturing and Quality Control
As an experienced manufacturer, Shandong Sino Steel follows strict production procedures to ensure every batch of tinplate meets international standards. Our quality control team checks the base metal chemistry, coating uniformity, thickness tolerance, and mechanical properties before release. We maintain our management system in compliance with ISO9000 and ISO19011:2000 requirements. In addition, our production facility covers an area of 10,000-30,000 square meters and is equipped with advanced processing lines, allowing us to handle orders with efficiency and precision.
Applications
The 0.19mm MR grade SPCC electrolytic tinplate is specifically designed for industrial parts where dimensional accuracy and corrosion resistance are critical. Typical applications include:
- Electronic components and shielding parts
- Battery shells and positive/negative end caps
- Automotive small stampings
- Chemical packaging containers and closures
- Electrical enclosures and junction boxes
- Precision metal parts for machinery
Why Choose Shandong Sino Steel?
- Factory Direct Pricing: We are a manufacturer, not a trading company, which allows us to offer competitive prices and stable supply.
- Flexible Customization: Width, coating weight, surface finish, and temper grade can all be adjusted to your production needs.
- Export Experience: Our annual export value of US$2.5 million to US$5 million and shipments to major ports such as Qingdao, Tianjin, and Shanghai demonstrate our global capability.
- Responsive Support: With an overseas office and a team of 101-200 employees, we provide timely communication and after-sales service in multiple languages.
- Market Reach: We serve North America, South America, Europe, Southeast Asia, Africa, the Middle East, and East Asia, giving us deep understanding of international requirements.
Export Packaging and Shipment
Our tinplate sheets are packed with anti-rust paper, polyethylene film, and steel pallets to prevent moisture damage during transit. Each package is labeled and wrapped securely for sea freight. We arrange shipments from Qingdao, Tianjin, and Shanghai ports with flexible loading options. For coils, we provide horizontal or vertical packing with edge protection to avoid deformation.
Frequently Asked Questions (FAQ)
Q1: What is the difference between SPCC and MR grade tinplate?
SPCC refers to the base cold-rolled steel grade, which is known for its good formability. MR grade, on the other hand, indicates a refined steel composition with lower levels of phosphorus and nitrogen. This chemistry reduces segregations and improves the corrosion resistance of the final tinplate, making it more suitable for demanding industrial environments. Our product combines SPCC base steel with MR grade metallurgy to deliver balanced properties.
Q2: Can the tin coating weight be customized?
Yes, we can supply tin coating weights from 2.8g/m2 to 11.2g/m2 according to specific requirements. A coating weight of 5.6g/m2 is a standard choice that offers good corrosion protection and solderability. If you need a different coating weight, please contact us with your application details and we will provide a customized solution.
Q3: What surface finishes are available?
We offer bright, stone (satin), and matte surfaces. Bright finish is smooth and reflective, suitable for decorative and high-gloss applications. Stone finish has a fine texture that provides an excellent base for printing and painting. Matte finish reduces glare and is often used for technical parts. The choice of finish can be specified in your order.
Q4: What is the minimum order quantity?
The MOQ depends on product specifications and destination. For standard sizes, we usually accept trial orders of a few tons to help you evaluate the material. For regular production, full container loads are recommended to minimize costs. Please contact our sales team to confirm the exact MOQ for your project.
Q5: How do you ensure product quality?
Our production process follows a comprehensive quality control plan. We test the raw material before production, monitor the tin plating process online, and conduct final inspections on thickness, coating weight, surface defects, and mechanical properties. We are certified to ISO9000 and also comply with ISO19011:2000 management audit guidelines. A mill test certificate is provided with each shipment.
Q6: What packaging do you use for export?
For sheets, each bundle is interleaved with anti-rust paper, wrapped in plastic film, and placed on steel pallets or wooden pallets, then secured with steel straps. For coils, we use edge protectors, moisture-proof wrapping, and steel skids to ensure safe handling. Packaging can be customized according to your transportation method or special requirements.
Q7: Can this tinplate be used for food containers?
Our MR grade SPCC tinplate is commonly used in food can manufacturing due to the protective tin layer and the low-toxicity nature of tin. However, if your application requires direct food contact, please inform us in advance so that we can provide the appropriate surface treatment and relevant documentation. For industrial parts, this product is fully suitable.
Q8: What is the typical production lead time?
For standard products, production usually takes 15-20 days after confirmation of the order. For custom specifications, the lead time may be longer. We will provide an accurate delivery schedule when you place an inquiry. Our factory’s efficient production capacity allows us to handle bulk orders without delay.
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