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Tinplates & TFS

Even since its introduction as a packing material for the proceed foods, tinplate has plays an important role in packing industry for over 100 years. Today, various kind of packing materials have been developed and commercialized. However, with an attractive surface finish, excellent corrosion resistance, workability, solderability, printability and paintability, tinplate is still the main stream of food packing materials and popular in numerous applications such as motor oil cans, electric parts, dry cells, stations, toys, etc.

Realizing the potential tinplate enjoys in the packing industry, we diversified into this field, and a computerized, fully automated electrolytic tinning line, planned and built by JFE Steel Corp. on a turnkey basis, was commissioned in 1986. The line employs the Halogen Continuous Electrolytic process which is famous not only for its ability to guarantee the uniformity of tin coating weight but also its ability to run the ultra thin or high temper black plate; besides it is simple to maintain.


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  • Manufacturing Process

    We operate the Halogen continuous electric tinning line through a fully computerized control system for non-stop manufacturing which even changes cutting size and selects current chemical treatment, temperature and line speed, besides it automatically inspects and adjusts for malfunction. It's a high-tech production which is an excellent combination of technologies, sophisticated facilities and professional spirits.


    Process of Tinning Line

    PACKING  
      
    Ton Yi’s packing has been specially developed to guarantee its product during the handling, transportation and warehousing. Tinplate in cut lengths are usually shipped in lots containing 1500 sheets in one skid. The quantity of sheets per package can be modified when required.


    IDENTIFICATION/
    All packages of cut length are attached with labels carrying STEEL TYPE, TEMPER, SURFACE FINISH, DIMENSIONS, WEIGHT, QUANTITY OF SHEETS CONTAINED, CHECK CODE, etc.
  • Ton Yi has a multi-purpose plating line producing tinplates, tin free steel and other plated steel which can be packed in both sheets and coils. Its annual capacity is 300 thousand metric tons at speed of 350 mpm. There is a set of scroll-cutting equipment for cutting coil in scrolled sharp, especially for can end pressing


    1. Standard Specification

    A. Tinplate
      Tinplate produced in Ton Yi meets the requirements of CNS 4155、JIS G3303 standard.
    B. Tin Free Steel (TFS)
        Tin Free Steel produced in Ton Yi meets the requirements of CNS 11241、JIS G3315 standard.

     

    2. Product Size

    Item
    Thickness
    mm(lb)
    Width
    mm(in)
    Lenght
    mm(in)
    Coil WT
    M/T(lb)

    Inside DIA.
    mm(in)

    Sheet

    0.14~0.60

    680~950 508~1,050 ___ ___ ___ ___
    Coil 0.14~0.60 680~950 ___ ___ max.11 406(16),419(16.5),
    508(20)

    3. Steel Type

    Steel Type

    Characteristics

    MR

    It contains few residual minor constituents and has a good corrosion resistance, so that it is widely used for such application as containers.

    L

    It contains particularly few residual minor constituents such as Cu,Ni,Cr,Mo,so that it is suitable for the material of containers which require improved corrosion resistance.

    D

    It is aluminum killed steel ,so that it is suitable for the application which bear deep drawing or other working that is liable to produce Luder's Lines.

     4.Temper Designation

    Designation

    HR30TSm

    Usage

    Thickness (mm)

    t0.210

    0.210t0.280

    0.280t

    SR

    (Single Reduced)

    T-1

    50±4

    49±4

    48±4

    Drawn requirements , nozzles , spouts , closures.

    T-2

    54±4

    53±4

    52±4

    Applications where moderate drawability and some stiffness are required small square and oval.

    T-2.5、T-2.5CA

    56±4

    55±4

    54±4

    Items requiring the drawability of T2 in combination with the stiffness of T3.

    T-3、T-3CA

    58±4

    57±4

    56±4

    Can ends and bodies , large diameter closures , crown caps.

    T-4T-4CA

    62±4

    61±4

    60±4

    General line cans ,crowns and others requiring higher stiffness than T3.

    T-5CA

    66±4

    65±4

    64±4

    Large can ends and bodies where excellent bulking resistance is required.

     

    Designation

    HR30TSm

    Usage

    Thickness (mm)

    DR
    (Double Reduced
    )

    DR-7.5CA

    71±4

    To form the body and cover of the three-piece tin cans.

    DR-8CA

    72±4

    To form the body and cover of the two- and three-piece tin cans. Also, it can form the body of the beverage cans, such as beer and carbonated drink.

    DR-8.5CA

    73±4

    To form the body and cover of the three-piece tin cans.

    DR-9CA

    75±4

    To form the body and cover of the two- and three-piece tin cans. Also, it can form the body of the large cans.

    Remarks:

    1. The suffix CA means continuous-annealing. CA tinplate has superior features due to the greater rigidity, high corrosion resistance and uniformity of mechanical properties and is ideal for speedy can-making.

    2. DR: Base metal produced by double cold reduction process --- the base metal has received a second major cold reduction following annealing. Consequently, it offers greater rigidity and strength than conventional base metals.

    3. Both CA and DR tinplates have the property of mechanical direction. It is necessary to have the rolling direction of tinplate parallel with the con circle.


     5. Tin Coating Weight Designation

    Type of Coating

    Designation of Coating Weight

    Nominal Coating Weight

    Minimum Ave. Coating Weight

    CNS,JIS

    g/m2

    lb/B.B.

    g/m2

    lb/B.B.

    Equal Coating 

    1.1/1.1

    #10/10

    1.1/1.1

    0.05/0.05

    0.9/0.9

    0.04/0.04

    2.8/2.8

    #25/25

    2.8/2.8

    0.125/0.125

    2.45/2.45

    0.11/0.11

    5.6/5.6

    #50/50

    5.6/5.6

    0.25/0.25

    5.05/5.05

    0.23/0.23

    8.4/8.4

    #75/75

    8.4/8.4

    0.375/0.375

    7.55/7.55

    0.35/0.35

    11.2/11.2

    #100/100

    11.2/11.2

    0.50/0.50

    10.1/10.1

    0.45/0.45

    Differential Coating

    2.8/5.6

    #25/50

    2.8/5.6

    0.125/0.25

    2.45/5.05

    0.11/0.23

    2.8/8.4

    #25/75

    2.8/8.4

    0.125/0.375

    2.45/7.55

    0.11/0.35

    2.8/11.2

    #25/100

    2.8/11.2

    0.125/0.50

    2.45/10.1

    0.11/0.45

    5.6/8.4

    #50/75

    5.6/8.4

    0.25/0.375

    5.05/7.55

    0.23/0.35

    5.6/11.2

    #50/100

    5.6/11.2

    0.25/0.50

    5.05/10.1

    0.23/0.45

    8.4/11.2

    #75/100

    8.4/11.2

    0.375/0.50

    7.55/10.1

    0.35/0.45

    Remarks:
    1.The following designations and markings are used for differentially coated tinplates:
        A.  A-mark : Parallel lines on the heavily coated surface.
        B.  S-mark : Single continuous line on the lightly coated surface.
        C.  Interrupted parallel lines are marked on the lighter coated surface.(The marking symbol may be agreed by the purchaser and the manufacturer)

    2.For the tin coating mass over 11.2(#100) or below 1.1(#10), please inquire.

     

    Differential Marking

    Type 

    Designation

    Differential Marking

       Parallel lines on the heavily coated surface

         A continuous line on the lightly coated surface

    Differential Coating 

    2.8/5.6       (#25/50)

    1/2" line spacing

           A continuous line should be given on the lightly coated surface at 3 mm from the trimmed edge

    2.8/8.4        (#25/75)

     1" line spacing

    2.8/11.2       (#25/100)

     1-1/2" line spacing

    5.6/8.4        (#50/75)

     1/2",1"  line spacing

    5.6/11.2       (#50/100)

     1/2",1-1/2" line spacing

    8.4/11.2       (#75/100)

    1",1-1/2" line spacing

    Examples of Marking



     

    6. Surface Finish 

    Code 

    Classification 

    Specific Features

    B

    Bright Finish 

    Bright finish a luster surface provided by a flow-brightened tin coating on a smooth grindstone finished steel base.

    R

    Stone Finish 

    A luster surface provided by a flow-brightened tin coating on a steel base characterized by a directional grindstone pattern.

    S

    Silver Finish 

    A luster surface provided by a flow-brightened tin coating on a coarse dull finished steel base. 

    M

    Matte Finish

    A dull surface provided by an unmealted coating generally on a dull finished steel base.


  • When an inquiry is made about or when an order is placed for Ton Yi’s Tinplate, please give the following information.

    1. Tinplate specification

          A. Steel type
          B. Dimensions
          C. Tin Coating weight
          D. Desired temper designation
          E. Surface finish required
     
    2. Specific end use
    3. Packing and marking requirements
    4. Delivery requirement
    5. Any other information, if required


    For more information,please contact:        
       
    Scottie Su
    TEL:886-6-2531131 Ext:508
    FAX:886-6-2539361
    E-mail: scottie@tonyi.com.tw

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