Global Premium Metal Packaging Solution: Printed Tinplate

Our premium Printed Tinplate (Electrolytic Tinplate, abbreviated as ETP) represents the pinnacle of modern metal packaging materials, trusted by global manufacturers for its ultimate durability and aesthetic flexibility. Composed of a high-strength, cold-rolled low-carbon thin steel base electrolytically coated with a uniform, protective layer of commercially pure tin, our Printed Tinplate offers dual benefits: the formidable structural integrity of steel coupled with the superb non-toxic, corrosion-resistant qualities of tin.

Engineered specifically for the rigorous demands of the global packaging market, this product is available in a versatile thickness range from 0.15mm to 0.5mm, and widths ranging from 600mm to 1020mm. It accommodates various design configurations, including cut-to-size tinplate sheets (600mm to 1000mm) and high-volume tinplate coils. To ensure precise mechanical performance tailored to your automated production lines, we provide both Batch Annealed (BA) and Continuously Annealed (CA) tempers across a comprehensive matrix of hardness grades, including T1, T2, T3, T4, T5, DR7, DR8, DR9.

Whether you are manufacturing high-end confectionery containers, airtight food cans, industrial aerosols, or secure metal closures, our Printed Tinplate provides an exquisite metallic luster and a flawless canvas for high-definition lithographic printing, setting your brand apart in competitive international retail environments.

Our Printed Tinplate is manufactured to strict global standards—fully compliant with JIS G3303, DIN, ASTM, and GB specifications. This guarantees unparalleled performance across five core areas:

• Excellent Corrosion Resistance: By offering tailorable tin coating weights (including symmetric configurations like 1.1/1.1, 2.8/2.8, 5.6/5.6, and custom-engineered differential weights), our Printed Tinplate shields the substrate steel against oxidization, atmospheric moisture, and aggressive organic elements present within the container contents.

• Superior Paintability & High-Definition Printability: The surface morphology of our tinplate can be customized to several distinct finishes—including Bright, Stone, Matte, Silver, and Rough Stone. This micro-engineered surface provides exceptional adhesion for advanced food-grade lacquers and UV inks, ensuring lithographic print designs remain vibrant, crisp, and scratch-resistant.

• Flawless Solderability & Weldability: Designed for high-speed automated can-making machinery, our material exhibits perfect thermal conductivity and surface uniformity, facilitating rapid, seamless welding or soldering of side seams without compromising structural integrity.

• Optimal Formability & Mechanical Strength: The choice between BA and CA processing allows us to calibrate the exact ductility and yield strength required. From deep-drawing intricate biscuit tins to forming rigid, puncture-resistant aerosol bases, our steel maintains structural stability post-forming.

• Beautiful Metallic Presentation: The natural metallic luster of pure tin enhances brand premiumization, reflecting superior quality even in unprinted or clear-varnished sections of the package.

With a rich heritage dating back to our establishment in 2001, Shanghai Quanjiang Industrial Co., Ltd. (operating internationally under the renowned QuanJiang brand) is a premier, large-scale enterprise integrating advanced metallurgical manufacturing with comprehensive global export operations. Spanning a state-of-the-art facility of more than 40,000 to 60,000 square meters in Shanghai, China, our industrial ecosystem is optimized to supply the global supply chain with a massive production capacity of up to 50,000 metric tons (MT) per month.

Our workshop features highly automated, cutting-edge machinery designed to execute precision fabrication and printing. Key heavy equipment includes advanced high-speed pushing machines, heavy-duty forming presses, specialized large-scale heat treatment furnaces for precise BA/CA temper annealing, computer-controlled chamfering and sawing machines, and comprehensive sandblasting units.

Quality assurance is embedded in every phase of our manufacturing process. Our testing laboratories are equipped with computerized coating weight gauges, hardness testers, and rigorous deformation simulators. We adhere strictly to international standards, providing full material traceability. From protective seaworthy packaging utilizing heavy-duty wooden pallets and reinforced steel corner protectors to flexible global logistics coordination via reliable T/T payment terms, our factory delivers wholesale reliability to metal packaging markets worldwide.

A: Printed Tinplate is a cold-rolled low-carbon steel sheet or coil that has been electrolytically coated with a micro-thin layer of commercial-grade pure tin to prevent rusting and oxidation. It is globally recognized as one of the safest, most sustainable packaging materials for food items. For food applications, a specialized, BPA-free, food-grade lacquer or varnish is applied to the interior surface. This protective barrier eliminates any potential interaction between the metallic substrate and food products (such as biscuits, milk powder, candies, tea, and chocolates), maintaining complete flavor integrity and freshness over extended shelf lives.

A: We offer both Batch Annealed (BA) and Continuously Annealed (CA) processing routes.

• BA (Batch Annealing) yields a softer, more ductile steel matrix ideal for complex, deep-drawn geometries, ornamental tin shapes, and flexible components (e.g., hardness grades T1 through T3).

• CA (Continuous Annealing) provides a highly uniform, stiffer, and stronger crystal structure, perfectly suited for rigid bodies, high-pressure aerosol cans, and components requiring superior puncture resistance (e.g., T4, T5, and Double Reduced DR8 or DR9 grades). Our technical sales team can assist you in selecting the ideal temper based on your final application.

A: Our standard Minimum Order Quantity (MOQ) is 25 metric tons (typically equivalent to one full container load), which allows us to optimize manufacturing efficiency and provide the most competitive wholesale pricing. The standard production lead time is approximately 30 working days for standard or trial orders, and up to 40 days for highly customized bulk orders involving complex lithographic print patterns or specialized differential tin coatings.

A: Quality control is our highest priority. We utilize automated optoelectronic inspection lines to detect surface micro-defects or coating inconsistencies in real time. Before commencing mass production, we generate physical proofing samples using your precise artwork for mechanical and aesthetic approval. Once certified, batch production runs under strict adherence to JIS G3303 and ASTM protocols. Every shipment undergoes definitive pre-export verification checking dimensional tolerances (thickness, width, flatness) and tin coating uniformity, backed by comprehensive Mill Test Certificates (MTC).