Batch Annealed T2.5ba 0.34mm Tinplate Sheet for Food Can & Crown Cap

Product Description

Tinplate, an alloy of tin (Sn) and iron (Fe), where Sn is the coating, tinplate is also called tin-plated iron

Tinplate is the common name for electroplated tin-plated thin steel plates, and its English abbreviation is SPTE. It refers to cold-rolled low-carbon thin steel plates or steel strips plated with commercial pure tin on both sides. Tin mainly prevents corrosion and rust. It combines the strength and formability of steel with the corrosion resistance, solderability and beautiful appearance of tin into one material. It has the characteristics of corrosion resistance, non-toxicity, high strength and good ductility.
 

Product Parameters

Commodity	electronical tinplate in coils strip
Thickness	0.137-0.7 mm (tolerance-/+0.01)
Width	Trips:24-600 mm,coil 600-1200 mm (tolerance -0/+3 mm)
Coating weight	1.1/1.1,2.8/2.8,5.6/5.6
ID	508 mm
Temper	T2-T5,DR8,DR9
material	MR/SPCC
Standard	JIS G3303,GB/T2520-2000,ASTM A623,BS EN 10202

 

Type	Designation of Tin Coating
Equal Tin Coating	1.4/1.4
	2.2/2.2
	2.8/2.8
	5.6/5.6
	8.4/8.4
	11.2/11.2
Different Tin Coating	1.4/2.8
	2.2/2.8
	2.8/5.6
	2.8/8.4
	2.8/11.2
	5.6/8.4
	5.6/11.2
	8.4/11.2

Amount of tin plating for hot-dip tinplate:

Code tin plating amount (both sides) g/m2 Chinese title application example

H12/1224
H14/1428
H15/15301.5 pounds tin amount of fruits, vegetables and meat
H17/1733.6


Amount of tin plating for electroplated tinplate:

Code tin plating amount (per side) g/m2 Chinese title application example
10#1.1/1.110 In addition to the No. 100 tin quantity used for canned mushrooms, fruits, etc., iron with a tin quantity of less than 50# is generally used for iron printing and coating processing.
25#2.8/2.825
0#5.6/5.650
75#8.4/8.475
100#11.2/11.2100

2. Substrate thinning: This is a well-known wish. Currently, 0.15m/m tinplate is used for lid production in my country. Some cold-rolled plate companies have announced that they can produce 0.12m/m cold-rolled plates for the cover industry. Therefore, secondary cold-rolled tinplate with thinned substrate and enhanced hardness is the development direction of the can (lid) industry.

The list of tempering degrees of tinplate in the world is as follows:
Secondary cold rolled tinplate:
Traditional Symbol Current Symbol HR30T Value Tensile Strength (MPA) Purpose
DR8DR55073550+70 round can body, bottom and lid
DR9DR62076620+70 round can body, bottom and lid
DR9MDR66077660+70 Beer and carbonated beverage can bottoms and lids


Primary cold rolled tinplate:

T1 T50 52 330 extremely harsh deep drawing

T2 T52 52 350 deep drawing

T2.5 T55 55 general use

T3 T57 57 370 is for general use, the can body is not scratched

T4 T61 61 415 is generally used. It is relatively rigid and requires rigid bottoms, lids, shallow flush tanks, etc.

T5 T65 65 450 anti-warping, requires rigid bottom, lid and can body

T6 T70 70 530 is very rigid, used for the bottom and lid of beer and carbonated beverage cans

For the same can type, secondary cold-rolled tinplate can be used to replace thicker with thinner to improve the utilization rate of tinplate


 

Coating Structure

 

Production Process

 

Mechanical Properties

emper Grade	Hardness(HR30Tm)	Yield Strength(MPa)
T-1	49±3	330
T-2	53±3	350
T-3	57±3	370
T-4	61±3	415
T-5	65±3	450
T-6	70±3	530
DR-7M	71±5	520
DR-8	73±5	550
DR-8M	73±5	580
DR-9	76±5	620
DR-9M	77±5	660
DR-10	80±5	690

 
Coating Weight
 

Former Coating Designation	Nominal Coating Weight (g/m2)	Minimum average Coating Weight (g/m2)
10#	1.1/1.1	0.9/0.9
20#	2.2/2.2	1.8/1.8
25#	2.8/2.8	2.5/2.5
50#	5.6/5.6	5.2/5.2
75#	8.4/8.4	7.8/7.8
100#	11.2/11.2	10.1/10.1
25#/10#	2.8/1.1	2.5/0.9
50#/10#	5.6/1.1	5.2/0.9
75#/25#	5.6/2.8	5.2/2.5
75#/50#	8.4/2.8	7.8/2.5
75#/50#	8.4/5.6	7.8/5.2
100#/25#	11.2/2.8	10.1/2.5
100#/50#	11.2/5.6	10.1/5.2
100#/75#	11.2/8.4	10.1/7.8
125#/50#	15.1/5.6	13.9/5.2

Our Advantages

1.Opacity

In addition to causing deterioration reactions in food, light can also cause changes in proteins and amino acids. Vitamin C is more likely to interact with other food ingredients when exposed to light, resulting in a large amount of loss. According to research and analysis, the loss of vitamin C in milk in transparent glass bottles is 14 times higher than that in milk in dark bottles. Light will also cause the milk to produce oxidized odor, as well as cleavage of nuclides, methionine, etc., resulting in loss of nutritional value. The opacity of tinplate cans gives the highest preservation rate of vitamin C.

2.Good sealing

The barrier properties of packaging containers against air and other volatile gases are very important for the preservation of nutritional content and sensory quality. Comparing various juice packaging containers proves that the oxygen permeability of the container directly affects the browning of the juice and the preservation of vitamin C; metal cans, glass bottles, aluminum foil glue laminates, and cartons with low oxygen permeability affect the preservation of vitamin C. is better, among which the iron can is the best.

3. Reduction of tin

The tin on the inner wall of the tinplate will interact with the oxygen remaining in the container during filling, reducing the chance of food ingredients being oxidized. The reducing effect of tin has a good preservation effect on the flavor and color of light-colored fruits and juices. Therefore, juice cans packed in unpainted iron cans have better nutritional preservation than juice cans packed in other packaging materials, and the browning is lighter. The flavor quality is better accepted and the storage life is extended.

4. Provide a source of effective iron

Tinplate canned foods, except for a few light-colored fruit and juice cans, mostly use empty cans that are painted inside to improve the corrosion resistance of the container. Due to the electrochemical effect of the metal, there will be a small amount of canned food in painted cans during storage. The iron is leached out and exists in the form of divalent iron in sealed canned foods. It is easily absorbed by the human body and the content is about 1 to 10 ppm. For fruit and vegetable products, the raw materials themselves do not contain much iron. Iron canned products are calculated based on the iron content of 5ppm per can of a 350ml beverage can. Each can can provide 1.75mg of iron, which is about ten times the human daily intake of 18mg. one part. If the above-mentioned fruit and vegetable juice beverage cans are rich in vitamin C, iron can be more easily absorbed, so iron canned food and beverages can be regarded as a good source of iron, and the nutritional significance of tin canned food is even more profound.

Because of these properties, tinplate cans provide a closed system that is completely isolated from environmental factors except heat. It prevents food from deteriorating due to light, oxygen, and moisture, and does not become dilute due to the penetration of aroma or be affected by environmental odors. The food storage stability is better than other packaging materials. It has the highest preservation rate of vitamin C and the best preservation of nutrients.

Product Application

Tinplate is used in a wide range of applications, from packaging materials for food and beverages to grease cans, chemical cans and other miscellaneous cans. The advantages and characteristics of tinplate provide good physical and chemical protection of the contents.

1. Canned food

Tinplate can ensure food hygiene, minimize the possibility of spoilage, and effectively prevent health risks. It also meets modern people's needs for convenience and speed in eating.

2. Beverage cans

Tinplate cans can be used to fill juice, coffee, tea and sports drinks, as well as cola, soda, beer and other beverages. The highly workable nature of tinplate cans allows for a wide variety of can shapes, whether tall, short, large, small, square or round, to meet the diverse needs of today's beverage packaging and consumer preferences.

3. Grease tank

Light will trigger and accelerate the oxidation reaction of oils, reduce the nutritional value, and may also produce harmful substances. More seriously, it will destroy oily vitamins, especially vitamin D and vitamin A.

The oxygen in the air promotes the oxidation of food oils, reduces protein biomass, and destroys vitamins. The opacity and air-sealing isolation effect of tinplate are the best choice for packaging oily foods.

4.Chemical tanks

Tinplate is strong, protective, non-deformable, shock-resistant and fire-resistant, making it the best packaging material for chemicals.

5. Spray and other miscellaneous cans

Tinplate cans that can withstand high temperature and high pressure, especially suitable for high-pressure filling spray cans. Biscuit barrels, stationery boxes and milk powder cans with various shapes and beautifully printed shapes are all tinplate products.

Company Profile

 

About us

 

Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300,000 tons steel.

Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Bao Steel, Laiwu Steel, Rizhao Steel, Handan Steel, Anyang Steel, Maanshan Steel and other domestic large steel companies.

Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel process factory with 100000 Square meter for steel laser cutting, surface treatment and other further processing , and our stock always more than 20,000 tons.

Zunkai Group mainly engaged in : PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,I beam, angle, Channel flat steel etc .

Our good quality and reliable service will be your best trusted partner.
Sincerely wish to building long and regular business with you forever!!!

Our Cooperation

 

Q1 : What is your payment terms?
A1 : 30% deposit & balance against B/L or L/C at sight.
 

Q2 : What is your delivery time & loading port?
A2 : Generally it is within 7 days after received advance payment or L/C. If the goods is not in stock , according to the quantity
it is within 15 days. Loading port:QINGDAO or TIANJIN.

Q3 : Do you have MOQ request ? Can offer free samples?
A3 : Our MOQ is usually ONE ton. Free samples is ok but need pay thecourier charge. Charge can be deduct in future orders.

Q4 : What are your company's main products?
A4 : Our main products are Aluminum products, Steel products, Stainless steel products, Galvanized steel products, Colorized steel Coil, etc.