Aerosol Tinplate Can Products Electrolytic Tin Plate Coils BA T4 2.8/2.8 High Strength

Aerosol Tinplate Can Products Electrolytic Tin Plate Coils BA T4 2.8/2.8 High Strength

1. Introduction

Tinned substrate steel is mostly low carbon mild steel, the carbon content is generally 0.03% ~ 0.13%. Before the development of continuous casting technology, mostly casting boiling steel and gland steel were used. Although these steels have good surface quality and can be rolled to tin-coated substrates, they cannot be used as tin-coated substrates with high forming properties due to the existence of component segregation during the casting and solidification of the ingot and the great difference in mechanical properties in the rolling direction and width direction. Since the rapid development of continuous casting technology in the 1970s, the continuous casting slab is suitable for improving the shape quality and forming stability of the tin plate because of its uniform chemical composition, small segregation and small fluctuation in mechanical properties. At present, the steel used in tinplate has basically been continuously cast.

The chemical composition of tinplate steel can be divided into L, MR, MC, D type 4 according to ASTM A623 standard, and its chemical composition is shown in Table 1. The percentage content of each element listed in the table is the maximum, and the actual content is usually much lower. Among them, L-shaped steel residual elements (Cu, Ni, Cr, Mo and other elements) composition is particularly small, with excellent corrosion resistance, MR Type residual element composition is wider, good corrosion resistance, used as a general food container, MC type P content is higher, play a role in increasing strength, for strength requirements and corrosion resistance requirements are not high purposes, D type is aluminum killing steel, For use in deep drawing or under conditions prone to tensile strain marks. There is also a N type steel, is in L, MR, MC steel nitrogen to improve the strength of the steel, in addition, the United States, Japan some tinplating professional factory using continuous casting method also produced tinplate with quasi-boiling steel and aluminum killed steel.

With the improvement of tin plate production technology, the development of coating corrosion resistance. In order to reduce costs, some products with low corrosion resistance requirements began to use ordinary cold-rolled steel SPCC and SPCD as tinplate substrates.

We are the professional manufacturer in China with advanced technical equipments, first class inspection devices and substantial experience in production. It possesses integrated process lines including smelting, hot rolling, cold rolling and coating. The product catalogue covers ETP and TFS with an annual output over 1 million tons. Our tin mill products are widely sold and used throughout the world in application of packaging of food, beverage and industrial goods and enjoy high reputation in the international market. 

• Temper after single reduce JIS G3303-2008

• Temper after Double Reduce(DR)JIS G3303-2008

2. Features of ETP Products

• Properties

A. Tinplate is characterized by its thin gauge, which is between 0.13mm and 0.49mm.
B. Tinning of the tinplate is achieved in a continuous electrolytic process.

• Advantages

In addition to thin gauge, the tinplate also boasts mechanical properties with a wide range from 230 to 620MPa. Hence, it suits the needs in multiple forming processes and various industries.

The tinplate is available in varied surface finishes, with three different levels of roughness.

Like other steel, tinplate is easy for recycling in line with environmental protection requirements.

Also, with high opacity, and excellent sealing property, tinplate provides ideal protection for food, beverage, and other substances when made into packaging containers.

3.  Mechanical Properties of DR Tin Mill Products

4. Product Standard

• ETP

ETP orders are placed with Baosteel in accordance with Q/BQB 450-2009 standard which uses in a non-equivalent to JIS G 3303:2008, DIN EN 10202:2001, EN 10203 standards.

• TFS

TFS orders are placed with Baosteel in accordance with Q/BQB 455-2009 standard which uses in a non-equivalent to JIS G 3315:2008, DIN EN 10202:2001, EN 10203 standards. 

5. Usage Precautions for ETP

• As ETP is covered by soft metallic tin coatings, due precautions should be taken not to cause scratches by rough handling or vibration during transportation.
• Paintability, printability, solderability, and mechanical properties of ETP tend to 收deteriorate as time elapses after production. Use as soon as possible after delivery.
• Although ETP has excellent corrosion resistance, it tends to rust in a humid atmosphere. Use as soon as possible after unpacking.
• Tin is dissolved by a strongly alkaline solution. When using ETP for making cans for alkaline contents, paint the internal surface.
• As contents that contain sulfur cause blackening of the ETP surface, paint the internal surface.

6. EQUIPMENT & PRODUCTION LINES

7. TINPLATE COILS

8. APPLICATIONS 

Modern industrial tinplate is usually a cold-rolled, low carbon sheet coated with commercial pure tin on both sides, which combines the strength and formability of steel with the corrosion resistance, weldability and appearance of tin. Tinplate is widely used in the food industry and a variety of containers, stamped products, packaging materials for non-food industry, such as food cans, spray cans, bottle caps, gas containing beverage cans, packaging materials and non-packaging materials (home appliances, toys, stationery, engineering).

Advantages of Food Cans: 

• Hygienic: Provide excellent and non-toxic barrier properties to protect food products from impurities, bacteria, moisture, light, and odours.
• Safe: Low weight and high strength make food cans easy to ship and store .
• Eco-friendly: Offer 100% recyclability; and significant cost benefits compared with aluminum.

Application Records:

• Three-piece pop-top can for food and beverage: Mature ETP market. Representative clients: Wanglaoji, Redbull, Robust.
• Food can: As the most potential ETP market, tinplate is used for the package of all kinds of canned food such as Huangguan, Meilin and Gulong.
• Screw cap and crown-shaped cap: ETP is used for different beer. Meanwhile it is the main supplier of crown shaped cap.
• Spray can: Remaining to be further developed ETP market.
• High-grade chemical can: Chemical ETP is used for the package of paint materials.
• Drawn can and DRD can: Newly booming ETP market. It is used in gift can.

9. Packing and Marking

Offers coils and sheets, coil packed in a vertical form or a horizontal.

A label that indicates the manufacturing history is affixed to the outside of the packaging. In addition, a service card is contained inside.

With regard to types of packing and markings, please consult us.