Since the 1940s, tin is applied to the steel sheets electrolytically. Before that, tin was applied through hot dipping. Tinplate production is the major use of tin and uses 30% of all tin produced. By 2018, 30% of all tin production was from recycled sources.Electrolysis has the advantage of achieving thin tin coatings and controlling the thickness of coating. This is important as coating thickness can vary on the two sides of the steel sheet to produce ‘differential coated tinplate’. Modern tinplate has tin coatings that are only 0.1 to 1.5 microns thick.

Tinplate is steel with a thin coating of tin for rust protection. A layer of white enamel is added to some food cans produced from this materials to protect the contents. Crown caps for bottles and the lids of glass screw-cap containers are also usually made of tinplate. Around 12,000 tonnes of tinplate are collected separately each year. This corresponds to 1.5 kg per capita per year.

For almost a century, Lapham-Hickey Steel has provided high-quality tinplate and tin coated steel for a variety of industrial uses in a variety of gauges, coating weights, and tempers. Lapham-Hickey’s products combine strength, corrosive resistance, light weight and malleability, making them ideal for many precision uses, including food packaging and consumer products.Regardless of your industry or application, we are committed to delivering you the very best tinplate and tin coated sheet products.

Tin plate is produced from black plated steel that has been coated with tin on both sides by electrodeposition. While tin plate has long been used by the packaging industry for cans and closures, it is also commonly used in the production of deep-drawn oil filter shells, metal hose, paint trays and more.Tin plate is valued for its corrosion resistance, solderability and weldability, as well as for its attractive metallic luster.

Tinplate is as recyclable as aluminium. All tins are made from steel and the tinplate is an external coating. 78% of steel (which would include tinplated steel) is recycled in Europe. In the UK it is 79% - V - 73% for aluminium.  Recycled aluminium saves 95% of the energy required for primary product. Tinplate saves 70% energy. This being said, steel requires a lot less energy than aluminium to make by some considerable margin. 211 GJ per tonne for aluminium -V- 22 GJ per tonne for steel. There are some savings to be made over the course of the lifetime of aluminium however, as it is 3 times lighter than steel, but you would need to be transporting it some distance to see these benefits.

Today’s  tinplate trade covers both the manufacture of tinplate from steel and the conversion of this into metal packaging, widely used for food and beverage cans and other products. Tin coating on thinly rolled sheet steel provides resistance to corrosion. It is used both to protect food, beverage or other products contained in the package (the ‘can’ or ‘tin’) and to  resist external factors such as heat processing steam/water systems. A polymer coating is sometimes added on the inside surface, to prevent chemical action and the possible transfer of taint between metal and product.

The tests which may be applied to tinplate can broadly be classified into two groups, objective, or quality tests and subjective, or performance tests. Many of these tests, especially the former, are routinely carried out during manufacture, as part of a quality control programme. Other, more sophisticated tests are used for research purposes or to investigate problems which may have arisen in service. The validity of any testing procedure is based on the assumption that the samples selected are representative of the bulk of the material to be tested. Sampling procedures for selecting sheets for mechanical property and coating thickness tests are outlined in the international and national standards.

Tinning or tinplating is the process of thinly coating sheet or strip of steel with tin (Sn), and the resulting product is known as tinplate. Tinplate is light gauge, cold-reduced low-carbon steel sheet or strip, coated on both faces with commercially pure tin. It combines the strength and formability of steel and the corrosion resistance, solderability and good appearance of tin. Within this broad description, there exists today an extremely wide range of tinplate products, tailor-made to meet particular end-use requirements.

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