Tinplate (tin-plated steel sheet) is a metal composite material with low-carbon steel as the base material and tin-plated surface, which has both the strength of iron and the corrosion resistance of tin. The tin layer is non-toxic, rust-proof, and resistant to sulfur corrosion. It can be welded and has a bright surface. It is suitable for packaging fields such as food cans, beverage cans, spray cans, and paint buckets. It has excellent stamping and forming properties and can be used to make containers with complex shapes. Since the industrialization in the 19th century, it has been widely used in daily chemical, industrial and military packaging. Modern technology achieves a thin tin layer through electroplating or hot-dip plating, taking into account both cost and environmental protection needs.

T1 hardness tinplate is a one-time cold-rolled, untempered annealed state, with soft texture, excellent ductility (elongation ≥ 35%), no wrinkles after forming, and suitable for deep drawing. Its low hardness is convenient for making complex curved containers, such as the bottom of food cans, the lining of bottle caps, and the shell of precision instruments. It is widely used in the packaging field with strict requirements on stamping performance, taking into account both processing efficiency and surface finish, and is a typical representative of soft tinplate.

T2 hardness tinplate is partially annealed after one cold rolling, with moderate hardness (HR30Tm≈55±3), good formability and tensile strength (elongation ≥28%). It has a smooth surface and excellent corrosion resistance, suitable for medium-depth stamping, such as ordinary food cans, bottle caps, toy shells and daily chemical packaging containers. The balanced mechanical properties make it a typical choice for general packaging materials with both processing efficiency and structural stability.

After secondary cold rolling, the hardness of T3 hardness tinplate is increased to HR30Tm≈60±3, with high strength and deformation resistance, and elongation ≥20%. It has excellent rigidity and is suitable for shallow stamping or stretching, such as beverage cans, bottle caps, aerosol cans and chemical containers. It has a smooth surface and good corrosion resistance, which can meet the needs of high pressure and impact resistance packaging. It is an economical choice that balances strength and processing performance and is widely used in large-scale industrial packaging.

T4 hardness tinplate is cold-rolled twice without annealing, and its hardness reaches HR30Tm≈65±3. It has both high strength and deformation resistance, and its elongation is ≥15%. It has excellent rigidity and is suitable for high-pressure packaging such as aerosol cans, chemical barrels and bottle caps. It has good surface corrosion resistance and high finish, which can meet the strength and stability requirements in harsh industrial environments. It is the preferred high-end packaging material.

After multiple cold rolling and quenching and tempering treatments, the hardness of T5 hardness tinplate reaches HR30Tm≈70±3, the tensile strength is significantly improved, and the elongation is ≥12%. It has excellent rigidity and is suitable for high-strength and impact-resistant packaging, such as heavy-duty aerosol cans, industrial paint barrels and pressure-resistant containers. The surface tin plating layer is dense, with excellent corrosion resistance and finish. It can withstand extreme environments and is an ideal material for high-end industrial packaging and special applications.

Tinplate coil, a cold-rolled steel strip electroplated with tin, combines steel’s strength with tin’s corrosion resistance and non-toxicity. Widely used in food packaging (cans, lids), it ensures safety and extends shelf life. Its smooth, printable surface suits branding, while lightweight design reduces material costs. Recyclable and durable, it meets global standards for sustainability and performance in industries like beverage, chemical, and electronics.

2.8/2.8 tinplate coil is a double-sided tin-plated product with equal thickness. The single-sided tin coating is 2.8g/m² and the total tin layer is 5.6g/m². It is both economical and corrosion-resistant. The coating is uniform and dense, with excellent sulfur and acid resistance. It is suitable for conventional food cans, beverage cans, spray cans and daily chemical packaging. The substrate can be made of T2-T5 hardness steel plate, which takes into account both stamping formability and structural strength, has a high surface finish, and supports high-definition printing and coating processing. The material meets food safety standards and is 100% recyclable. It is an environmentally friendly packaging metal coil with outstanding cost performance.

2.8/5.6 tinplate coil is a differentiated tin-plated product, with a single-sided tin coating of 2.8g/m² and 5.6g/m² respectively, and a total tin layer of 8.4g/m², taking into account both economy and targeted corrosion resistance. The high tin content in the inner layer enhances corrosion resistance, and the low tin content in the outer layer optimizes costs. It is suitable for food cans, beverage cans and chemical packaging. The base material can be selected from T2-T5 hardness steel plates, which balances stamping formability and structural strength, has a high surface finish, and supports high-definition printing. The material meets food safety standards and is 100% recyclable. It is a packaging solution that combines high performance with environmental protection.

5.6/5.6 tinplate coil is a double-sided high-tin plate product with equal thickness. The single-sided tin coating is 5.6g/m², and the total tin layer is 11.2g/m². It has excellent anti-sulfur and anti-acid performance and is suitable for scenarios with high corrosion resistance requirements, such as long-term storage of food cans, deep-sea fishery cans, and highly corrosive chemical packaging. The base material can be selected from T2-T5 hardness steel plates, which have both deep drawing formability and compressive strength, a smooth and dense surface, and support multi-color printing and protective coating. The material is 100% recyclable and meets global food safety standards. It is a core solution in the field of high-end long-lasting packaging.

5.6/8.4 tinplate coil is a differentiated high corrosion-resistant product, with a single-sided tin coating of 5.6g/m² and 8.4g/m², and a total tin layer of 14g/m². It has targeted enhanced sulfur/acid resistance and is suitable for packaging in extreme environments such as deep-sea food cans, high-temperature cooking cans, and highly corrosive chemical containers. The base material can be selected from T2-T5 hardness steel plates, which have both deep-drawing formability and compressive strength, and the surface is ultra-smooth, supporting multi-color high-definition printing. The material is 100% recyclable and has passed global food safety certification. It is a flagship solution in the field of high-end anti-corrosion packaging.

8.4/8.4 tinplate coil is a double-sided ultra-thick tin-plated product with 8.4g/m² tin plating on one side and 16.8g/m² total tin layer. It adopts a differentiated tin plating structure, with the inner layer strengthening the anti-sulfur/acid performance and the outer layer enhancing the wear resistance, which is suitable for long-term protection in extremely harsh environments. The substrate can be selected from T2-T5 high-hardness steel plate, which has both ultra-deep drawing formability and ultimate compressive strength, ultra-mirror surface treatment, and supports nano-level printing coating. The material has passed the world's top food safety certification and is 100% recyclable. It is a flagship solution in the field of high-end anti-corrosion packaging.