Min Jia- Your Premier Tinplate Sheet Supplier in China

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We, Min Jia, have 10 years of tinplate sheets manufacturing and export to many regions and countries. The prices are ensuring at the lowest price to provide excellent support for your budget.

Min Jia tinplate sheets are perfect for plenty of applications. Min Jia specializes in manufacturing food packaging. There are lots of selections we made to meet all types of production. It has perfect features that surely suit its applications.

Min Jia tinplate sheets have electrolytic types, with lacquer, and perfect features like corrosion resistance. We have also different sizes of tinplate sheets or thicknesses. It is weldability and solderability that many people find for.

There are different processes are handling in terms of tinplate sheets production. We ensure to train our team with their designated areas and task. We have the equipment and other needs and maintain the perfect functions. All types of tinplate sheets have their own equipment for different processes.

Min Jia provides tinplate sheet solutions. We manufactured tinplate sheets according to your sent details. Our tinplate sheets passed EU and FDA standards that are fit to your needs. If you are struggling what is the best choice, we can suggest and provides samples for you.

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Tinplate Sheets: The Ultimate FAQ Guide

I know you’re probably looking for high quality tinplate sheets.

Or, you would like to learn more about tinplate sheets.

Whichever the case, this guide will answer all questions you have been asking about tinplate sheets.

Keep reading to learn more.

What is Tinplate Sheet?

 Tinplate sheets

A tinplate sheet, by definition, is a steel sheet or strip coated on both sides with a thin layer of pure tin. Both tin and steel are base metals in the electroplating process.

One metal (the cathode) is given a thin coating of another metal (the anode) through electrochemical processes. The coatings are usually alloys that enhance their properties for specific applications.

The thickness of the tin coat is about 0.5mm-0.13mm.

Tinplate sheet is produced mainly by cold-reducing a flat strip of tinplate steel. Cold-rolled tinplate is recrystallized at temperatures above 825°C to soften and raise its strength.

This type of tinplate is formed or shaped without annealing to a fairly chief strength. It is often subsequently annealed to allow further forming or bending operations.

Tinplate sheet is very flexible, has lower formability than an ordinary flat-rolled sheet, and is quite versatile in its applications.

What is the History of Tinplate Sheets?

The history of the tinplate sheet is a long one. Its beginnings date back to over 700 years ago, although it became more prominent in the 20^th century when its manufacturing became more advanced.

Tinplate, which is a sheet of steel coated in tin, was innovated in Bohemia. It rolled out to Saxony, and by 1960 it was well set.

The innovation of hot-rolled sheets led to high-quality plate production. Continuous rolling was introduced. This was a major step forward for the tinplate industry.

In 1930, the Germans created the electrotinning process.  Tin had become short in supply in World War II, which prompted widespread tinplate manufacturing by the electrotinning process.

Production of Tinplate began in the US much earlier but started in earnest when it set up its first commercial plant in 1943. Within five years, electrolytic production accounted for half of the United States’ tinplate output.

Over the next thirty years, the global pattern of replacing hot-dipping tinplate units with continuous electrolytic lines continued apace.

Other technological advancements came in, such as continuous annealing and double reduction of cold-rolled steel strips before tinning. This aided in the industry’s remarkable growth during this era.

By the 1980s, the annual production of tinplate was over 13 million tons, and the trade had expanded to 37 countries.

Today’s packaging market has significantly evolved. Tin, especially, is becoming increasingly popular with different manufacturing techniques coming up each day. Thinner tin coatings and lighter but equally strong steel substrates are also becoming more common.

What are the Best uses of Tinplate Sheets?

 Food Cans

Tinplate can be used to make a variety of products such as:

• Food, beverage, dairy, and pharmaceutical packaging
• Cigarettes packaging
• Electrical wire and cable sleeve
• Battery containers
• Printing plates
• Roofing and siding
• Shelving units and cabinets
• Toolboxes, toys, barrels, and buckets
• Architectural acoustical and insulated panels
• Automotive parts (as a replacement for non-cadmium plated steel)
• Tooling plate for plastic molding
• Canopies
• Billboards

Tinplate is also used as an artistic medium to make murals as well as 3-D freestanding sculptures.

Which Industries use Tinplate Sheets the most?

Tinplate is used globally in a variety of industries, including;

• Automotive
• Food processing and beverage containers
• Electrical/electronics
• Building and construction
• Water and gas supply
• Agriculture and horticulture.

What is the Benefit of Tinplate Sheet as a Packaging Material?

Tinplate packaging has many benefits. These include:

Long Shelf Life

Tinplate provides excellent protection against dust, moisture, and other destructive elements, leading to the longer shelf life of contents.

Ultraviolet Ray and Bacterial Protection

The steel base material used to make tinplate sheets has excellent barrier properties. It prevents the package contents from ultraviolet rays, germs, and other contaminative elements.

Aroma and Flavor Retention

Tinplate boxes also have an excellent reputation in the food industry because of their superb aroma and flavor retention capabilities.

As you already know, this material provides increased package protection. Food products lead to increased aroma and flavor retention, which translates to longer shelf life of contents.

Pilfer and Tamper-proof

Tinplate is considered pilfer and tamper-proof because of its robustness and quality finish. It also has a good seal and wash-off strength. This prevents pilferage and tampering of contents during transportation.

Beautiful Authentic Material

The shiny finish of Tinplate sheets makes products stand out from others, keeping them visible to the customer’s eyes.

Excellent Printability

Tinplate is a light rustproof metal that has excellent print properties. It can be printed with high-resolution graphics or embossed with logos and text.

The material can be layered, lidded, and printed using a wide range of techniques to add visual impact to your product.

Economical

Tinplate is a thin sheet of steel that is coated with pure tin on both sides. It provides a cheap alternative to aluminum metal in packaging applications.

This packaging material is easy to machine and has good formability. For this reason, several parts such as lips, corners, or film reinforcements can be easily stamped on it at a low cost.

Eco-friendly

Tin, which comes from primary ore processing, is 100% recyclable without losing its strength. It is also environmentally friendly, making it one of the most sustainable packaging materials on the market.

Which Materials are used to make Tinplate Sheets?

As mentioned severally, the Tinplate sheet is a steel sheet with tin coating on both sides.

This is to say that the sheet comprises of two materials: steel and tin.

Steel

 Raw steel sheet

Steel is the main body of Tinplate sheets. It is the part that determines most of the tinplate sheet properties.

Note that all tinplate is made from low-carbon steel with trace amounts of other elements. And usually, the type of steel used to make tinplate sheets is determined by its intended use.

Different types of steel such as MR, MC, and L are used to make tinplate sheets. Most of these have a carbon quantity of 0.05% to 0.12%. They also have trim levels of manganese in about 0.3% to 0.6% and other elements such as phosphorus and silicon.

Tin

The surface material in tinplate sheets is tin. It is a soft, shiny, malleable metal with a bluish tint and characteristic odor.

Tin is a natural corrosion inhibitor, and when used as a coating on steel, it prevents rust and enhances other favorable properties of steel.

The amount of tin used to coat the steel is less than 5 micrometers (0.00020 in). Tin purity for coating should not be less than 99.8% (mm) (ISO11949).

Applying the thin hot-dip coating of tin to steel is complicated. It requires careful control of material quality before, during, and after its application.

Combining these two materials, steel and tin, give you tinplate. Tinplate gives you the strength and performance of steel, plus the added corrosion resistance and solderability of tin, all in one metal.

What are the Notable Features of the Tinplate Sheet?

Notable features of tinplate sheet include:

• Resistance to corrosion in atmospheric environments can resist corrosion at high temperatures range from 420 to 600 degrees centigrade.
• It is cheap
• Easy to bend and shape
• Sturdy meta – it has a uniform tensile strength
• Printability and printability – excellent for brand-name, articles on display, and in point-of-sale advertising
• Excellent weldability and solderability – Tinplate can be welded and soldered easily like ordinary steel because of its low carbon content.
• Tinplate is resistant to most chemicals- It will not increase the corrosivity of acids, alkalis, and salts usually encountered.
• Good appearance–Tinplate has a beautiful metallic luster which makes it excellent for making eye-catching products.

How do you Produce Tinplate Sheets?

Tinplate is made from rolled sheets of steel.

The starting material is often light gauge steel, and the process proceeds as follows:

 Outline of tinplate sheet production

• Hot Rolling: The slabs are fed into the hot rolling mill where they pass between preheated (1200 °C to 13000 °C) rolls to form a continuous sheet of steel with a gauge of about 6 to 8 mm thick.
• Pickling: The hot-rolled sheets are cooled. They are then cleaned of any oxide formed during pickling.
• Cold Reduction: Cooling of the hot sheets with water and lubricating oil, and then further rolling.
• Cleaning: Water and the lubricating oil are removed using alkaline phosphates, sodium hydroxide, and silicates. Then hot air is used for the final removal of the cooling liquids.
• Annealing: This process softens the steel to achieve its expected grain structure. Batch annealing creates deep-draw to hardened and stiff steel able to withstand vacuum and pressures.
• Temper Rolling: After annealing the steel, it is rolled to produce sheets of the correct thickness.
• Double Reduction: This is where a second round of reduction is used to roll the steel. The result is thinner and stronger sheets. Double reduced sheets can be as thin as 0.14–0.24 mm.
• Electrotinning: Pure tin is applied to the steel sheets electrolytically. Electrolysis achieves thin tin coatings and controls the thickness of the coat.
• This is critical, as the variance of coating thickness on both sides of the steel sheet can produce ‘differential coated tinplate.’ The tin layer thickness must be at least 0.1 to 3 microns (1/70000th of an inch).
• Plating: In this process, steel sheets pass through plating tanks with electrolytes. 9% pure tin anodes are submerged, fully covered by a layer of tin through electrolysis. The excess tin is removed from the sheet and recycled.
• Flow-melting: This is heating and melting of the tin coating, forming an iron-tin alloy layer. The alloy improves the anti-corrosive properties of tin.
• Passivation: The tin coating is oxidized, forming a thin film. They add a layer of chromium to prevent it from growing. To stabilize the coating, they add a layer of food-grade oil.

Which Quality Standards should Tinplate Sheets adhere to?

Many world-recognized standards of tinplate sheets categorize the sheets into different grades and according to their uses.

These may be voluntary regulatory agencies, country-specific agencies, or associations of tinplate sheet producing companies.

Sometimes any tinplate sheet marketed by a company will mention different standards applied to it during manufacturing.

Common quality standards tinplate sheets adhere to include:

AS 1517

AS 1517 Standard was published in 1991. It spells out standard requirements for cold-reduced electrolytic tinplate and cold-reduced black plate in sheet or coil form.

ASTM A623

ASTM A623 standard deals with general requirements. It stipulates tinplate’s thickness, width, inner diameter thickness tolerance, Electronic tinplate coil weight, and temper grade available.

ASTM A624

ASTM A624 was published in 2008. It’s a standard for the general requirements of tin mill products.

ASTM A624 protects single-reduced electrolytic tin plate made from low-carbon cold-reduced steel; material, markings, chemical treatments, and oiling.

ASTM A626

This standard specification protects electrolytic tin plate derived from low-carbon cold reduced steel.

JIS G 3303

JIS G 3303 standard was published in 2017. It caters to tinplate and black plate intended mainly for food or beverage can.

ISO 11949

ISO 11949 was published in 2016. The quality standard requirements for single and double cold-reduced low-carbon mild steel electrolytic tinplate in sheets or coils form.

ISO 11951

Tinplate sheets produced according to ISO 11951 standards are wear-resistant under ambient conditions with a wide range of fluctuation in temperature. They have reliable corrosion resistance to the atmospheric environment.

GB2779-87

GB2779-87 standard stipulates that the tinplate must be made of original materials. The standards also require tinplate chemical composition shall comply with the average for tinplate steel.

HR30T

The tinplate hardness measurement is Rockwell HR30T hardness when the thickness is over 0.20 mm, and when the thickness is less than 0.20 mm.

Quality standards are critical as they provide guidelines, specifications, or characteristics suitable for tinplate sheets. These provisions ensure that tinplate products, materials, and processes meet their purpose.

At Min Jia, we ensure the quality production of tinplate sheets and associated products. We follow all the stipulated guidelines and follow a strict quality control process in tinplate sheet production.

We guarantee that our tinplate sheets adhere to relevant industry standards. If you need proof of this, we have certifications to show you the assurance that we’re a quality compliant tinplate manufacturer in China.

 Tinplate sheet manufacturer certifications

What are the available options for Tinplate Sheet Coating?

The tin coating is applied on both sides of a steel sheet during manufacturing. The choice of coating, in this case, usually depends on the intended use for the end product.

Outer coatings often focus on achieving a desirable finish for the finished product.

On the other hand, the inner coating is usually applied in consideration of the contents of the finished product.

Accordingly, two coating options are available for tinplate sheets. These are:

Equally Coated Sheets

For this, the tinplate sheet is coated equally on both sides with a thin layer of pure tin at a thickness of about 0.1mm.

Differentially Coated Sheets

Also known as differential tinplate sheets, these feature a heavier tin coating on one side than the other.

The differential coating is suitable for applications that require higher corrosion resistance on one side of the sheet than the other. Usually, it is the inside that is heavier coated.

When buying differential tinplate sheets from China, you should always provide precise specifications on marking.

Let them know both the surface you want to be marked and the surface to pile uppermost.

Marking is essential in distinguishing materials having different tin coatings.

Usually, the heavier coated surface is marked as it often forms the interior of most end products.

Nonetheless, you can always arrange with the manufacturer to have the lighter coated surface marked if need be.

What is the Thickness range of the Tinplate Sheet?

Tinplate is a cold-rolled steel sheet metal with a thickness range of 0.13 mm-0.50 mm.

The tin coating is measured in microns–1 micron is equal to 0.0001mm. In a tinplate sheet, steel takes up most thickness.

There are different steel and tin combinations. Customers should discuss with the manufacturer their intended use of tinplate.

Consulting with your supplier will ensure you get the right quality product.

How is Thickness Tolerance for Tinplate Sheets determined?

Thickness tolerance is specified in both national and international quality standards.

Transverse thickness is measured using the micrometer method (0.01mm accuracy).

All other thicknesses are measured by the weighing method. Also, the amount of material used determines the actual value of thickness for tinplate sheets.

ISO 11949:1995, for instance, recommends a tolerance of +8.5%, dictated by weight, for a single sheet.

For consignments of 20,000 sheets or fewer, tolerance of +4% is applied. Whereas, for consignments of over 20,000 sheets, a tolerance of 2.5 is averaged.

Tinplate sheet for particular end uses, the purchaser may negotiate with the supplier for tighter tolerances.

What is Temper for Tinplate Sheets?

Temper specifications are based on ASTM A623 quality Standard. The application of the product determines the quality (gauge) of the base material used.

The tinplate sheet hardness is created in the temper rolling mill.

The Rockwell Hardness Test is used to show the standard hardness grading.

For a high yield strength tinplate sheet, a doubly reduced (DR) temper method is used.

DR method will produce lighter and thinner gauge tinplate sheets with uncompromised strength.

What Types of Surface Finishes do Tinplate Sheets come in?

Tinplate is a versatile material produced in a variety of surface finishes to suit many applications.

The finish you choose will depend on the aesthetic finish you are going for and the intended use.

Tinplate sheets come in the following standard surface finishes:

Bright Finish

 Tinplate oil sheet with a bright finish

The bright finish is shiny. Tinplate sheets with a bright finish are lacquered on one side, with the other side uncoated.

Lacquering creates a shiny surface and protects the metal from oxidation (rusting) and impurities. Bright finishes are mirror-like and very eye-catching.

Light Stone Finish

Tinplate sheet with light stone finish

The light stone finish has a satin or matte look and is the most commonly used tinplate finish.

It is not as shiny and gives the printed image a dramatic effect with a three-dimensional appearance.

Light stone finishes create a soft, elegant feel that you’ll fall in love with.

Matt Finish

Tinplate sheet with matt finish

Matt finish is like the flatness of a photograph when it has been put through an enlarger with no shine at all.

Matt finishes are the most traditional look, also known as a factory finish.

Stone Finish

The stone finish is flatter than the light stone finish but thicker than the matt finish.

Silver Finish

The silver finish will accept gold leafing easily for that extra sparkle.

Tinplate sheets with a silver finish are made to stand out against the light-colored metals.

They are commonly used in kitchen islands and tables like copper and stainless steel.

While still blending in against other metal fixtures like refrigerators and stoves.

What are two Grades of Tinplate, and how do they affect your Tinplate Sheet Choice?

Purchasing tinplate will require you to understand and assess which type of tinplate you want to buy and for what purpose.

The grade of the tinplate is the most critical consideration as it determines the appearance, strength, and cost of a product.

Tinplate sheet comes in two different grades:

Standard

The standard-grade tinplate sheet is also called the first-grade tinplate sheet.

It is the highest quality tinplate and has optimum strength and dimensional stability making it suitable for many applications.

First-grade tinplate has a tensile strength of over 1000N / mm2, and its bending radius is less than or equal to 20mm.

The material has optimum properties, making it an appropriate base for paintwork and lacquering because of its smoothness and flatness. Standard grade tinplate will stand up to more stress than other alternative grades.

This grade is suitable for food and beverage cans up to 20% of the total production. According to consumers, over 90% of the tinplate sheet is used for food and beverage packaging.

Second Grade

Second-grade tinplate is rejects of the standard-grade tinplate. You can use second-grade tinplate sheets for food or industrial applications.

This grade tinplate is rugged and not suitable for printing or expensive packaging.

The choice of second-grade tinplate is cheaper than the first-grade tinplate.

It also has inferior properties, including color loss, pinholes, higher lead content, and thinner material. Second-grade tinplate is used for general purpose applications.

Is Tinplate Sheet Environmental Friendly?

Yes.

Tinplate is one most recycled material on the planet. It is ideally suited for short periods of use and being repeatedly recycled without losing its strength.

Also, tinplate production requires 97% less energy than producing virgin (unrecycled) steel cans.  Tinplate bulkhead sheets can cause little pollution to the environment compared with other commodities.

The recycling and reuse of steel ensure a significant reduction of CO2 emissions to the environment.

For instance, 74 percent of European steel packaging was recycled in the year 2011 alone.

This translates to over 2.4 million tons recycled, saving over 3.4 million tons of CO2 emissions.

The steel recycling process takes care of mother earth’s natural resources and future human generations.

That said, our tinplate sheets undergo strict product inspection and testing.

Through these, we can confirm that our tinplate sheets are top quality and free of harmful substances. Our sheets are also proven to meet Chinese Environment Code standards.

Which Tests are applied to Tinplate Sheets?

The tests applied to tinplate are classified into two groups; quality tests and performance tests.

Most of the quality tests are done routinely during manufacturing and as a part of quality control.

The other tests, performance tests, are often done to investigate problems that may arise post-production.

These tests, note, are done following internationally recognized quality standards. Samples chosen are usually a representation of the bulk size that is to be tested.

Thus, the test results tend to be valid for the entire batch from which samples are taken.

As mentioned, there are quality tests and performance tests. Among these, mechanical tests are more prevalent.

They generally check the performance properties of the tinplate sheets.

Unfortunately, it is not possible to determine the performance of tinplate sheets with a single mechanical test.

Usually, temper is used to summarize all related properties of a tinplate sheet.

Individual mechanical properties will determine the performance of the tinplate.

These vary depending on the type of steel used, manufacturing technique, and the end-use of the tinplate.

Generally, temper grade is used to summarize all properties of a tinplate sheet.

However, one test proven to provide the best overall guideline for mechanical properties of tinplate sheets is the tensile test.

This test is often preferred as the referee method when determining the performance of tinplate sheets.

The Rockwell hardness test also serves well in testing the quality and performance of this material.

It is, however, preferred for routine testing of single-reduced tinplate sheets.

For double reduced tinplate, the Springback test is better suited.

You can conduct more specific tests, such as the formability and metallographic tests, to determine other performance factors of tinplate.

How do you Print Tinplate Sheet?

Lithographic UV printed tinplate sheet

You print a tinplate sheet through a process called photo-lithographic.

Lithography relies on the fact that some materials (e.g., copper) respond to printing ink, while others (e.g., chromium) are more responsive to water (they repel ink).

Printing ink and water are immiscible. If you wet a surface, the ink will not print on the moist surface.

In lithography, a printing plate is made where the areas to be design-printed are greased, and the surrounding areas (where no printing is done) are made wet.

The design is transferred to a rubber blanket (offset), which will contact the tinplate.

Besides, the design will be transferred onto the surface. The rubber blanket acts as a design carrier between the metal sheet and printing plate.

To replicate the image on a printing plate, the original artwork is photographed and reproduced transparently.

The number and size of the transparencies depend on the design complexity.

One can do line printing or halftone printing, depending on the colors in the image to be printed. Printing is done as dot images.

The value of color will determine the number and size of dots in a particular area.

Colors are separated into primary colors, yellow, blue, and magenta, for full-color printing. A plate is made for each color, and a black plate is made.

Tinplate printing ink, besides the general offset printing ink, should have the following properties:

• Heat resistant
• Have strong adhesion of ink film
• Impact-resistant
• Exhibit good hardness
• Light resistance

Note that ink drying too fast will reduce the normal transfer of ink performance, affecting the normal printing quality.

Ink drying too slow and can cause over printer difficulties. Adhesion, firmness reduction is easy to cause scratches in the process of transmission.

To avoid adverse effects on the printed sheet, ink drying speed should be appropriate, not too fast or slow.

How much is Tinplate Sheet Price?

Tinplate sheet is available in different hardness (temper), thickness, and size. This will determine the cost.

Nonetheless, the average cost of a Tinplate sheet is $750 – $850 per ton.

What is the Minimum Order Requirement (MOQ) for Tinplate Sheets?

The minimum order requirement (MOQ) for tinplate sheets depends on the supplier. Different suppliers have different MOQ, with the majority MOQ being 5tons – 25tons.

How do you Design Tinplate Sheet Artwork?

The easiest and surest way to design tinplate sheet artwork is to use online design software such as Adobe Acrobat or illustrator.

You don’t need any specific skills for this.

All you need is a good design idea in hand. Whatever remains, you can easily research steps using the software and design quality and compelling artwork for tinplate sheets.

Alternatively, you can request your manufacturer to design the artwork for you.

At Min Jia, we can connect you with excellent designers who will work together with you in creating bespoke tinplate sheet artwork. You can contact us anytime for help with artwork design.

What is the best File Format for Saving and Submitting Tinplate Sheet Print Design?

There are various file formats for saving and submitting high-resolution tinplate sheet print design.

For our customers, we encourage that you provide your ideas for tinplate artwork design.

We recommend that you save/upload the files in PDF, JPG, or CDR formats. As you do this, ensure that the artwork is in acceptable image resolution.

Is Tinplate Sheet Printing the same as Lacquering?

No

Tinplate printing is the transfer of the pattern or paints on the tinplate.

It mainly uses water and ink with the help of printing pressure. Printing enhances the decorative appearance and brand visibility which creates shelf product appeal.

Lacquering is the application of a thin layer of liquid that forms a protective hard coating.

The inside of a tinplate container can also be lacquered to create an inert protective barrier between the packaging container and the contents.

Internal lacquering should not contaminate the contents inside.

What are the available Tinplate Sheet Sizes in the Market?

Tinplate sheet is available in a wide range of suitable sizes.

The size limits of this material depend on the manufacturer as different manufacturers have different size guides.

In tinplate sheet manufacturing, the strip width is usually the limiting dimension among manufacturers.

However, it ranges from 675mm to 1000mm across the board, about 27 into 40.

Note that an increasing number of manufacturers can now offer tinplate sheets with a strip width of up to 1200 mm.

Cut lengths for these vary from around 460 mm to 1100mm.

Also, note that manufacturers don’t produce all dimensions in all tinplate sheet grades for technical reasons.

Therefore, it is essential to first ask your manufacturer the sizes available before making your tinplate sheets order.

Another thing to consider when ordering tinplate sheet sizes is the grain directionality.

This should be in tandem with what you want to make out of the tinplate.

How do you verify the quality of Tinplate Sheets?

The quality of tinplate sheets is specified in ISO 11949 1995 edition.

To verify the quality of tinplate sheets, you can do a visual inspection. Check sheets for:

• Pinholes and perforations through the thickness of the tinplate sheet material
• Defects of the tinplate surface may make the material unsuitable for use.
• Faults in the shape of sheet and damages which could affect its usability
• Tolerance range for thickness, which is 10.3
• Any marks and scars, gauge size, weight, and proportions.

The use of spectrometry and calibration methods to test a sample for chemical properties will help in verifying the quality of the sheets.

A metal analyzer will help test the mechanical properties of the tinplate sheet.

What are the considerations for Ordering Tinplate Sheets?

A good practice when ordering tinplate sheets is to have a thorough consultation with your manufacturer. Make the sheets’ intended purpose known as well as any techniques that ay used in fabricating it.

Other essential factors to consider when ordering tinplate sheets include:

Form of Tinplate

You should consider the form of tinplate sheet that you want to order.

Tinplate sheets come in the form of cut sheets and coil sheets. Selection will depend on the end-use and manufacturing technique. Coil sheet, for instance, is more suitable for continuous in-line processing.

Type of Steel Base

Again, selection for this is dependent on the end-use.

In recent years, continuously cast steel is more commonly used for tinplate production. Manufacturers believe that this type of steel is more chemically suited for more severe applications.

Formability

The formability of the tinplate sheet imposes specific formulations following the manufacturer’s practice.

Temper Grade

This should be chosen carefully, considering the degree of formability you need along with the reduction type.

Whether the sheet is continuously annealed or batch annealed can have an impact on its performance.

Surface  Finish

When you require special decorative effects on the end product, a tinplate sheet with a matt finish is advisable. For general purpose applications such as tin food cans etc., a bright or stone finish is recommended.

Coating

The selection of the type of coating depends on the applications of the tinplate sheet.

Generally, a heavier tin coating offers better protection in more severe corrosive conditions. Differentially coated tinplate is also better suited when the corrosive requirements of either surface of the tinplate sheet vary.

A heavier coating is recommended for the outer surface of the tinplate sheet, or the end product is transported in highly humid and corrosive conditions.

Passivation

The manufacturer typically applies a standard passivation procedure. You may request special passivation treatment that’s appropriate to your needs.

Depending on your unique requirements and specifications, you can trust Minjia for all your tinplate sheet needs – talk to us now.