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Super Tin (S-TIN)

Product Catalog

Super Tin, developed solely by TCC, is our latest product that applies high corrosion-resistant properties of tin and zinc alloy which is effective in preventing the formation of whiskers. Super Tin was developed to pioneer and expand into the market beyond our traditional tinplate such as electronic components and construction materials. At present, Super Tin is also used as materials for bottle cap, canning and electronic components that particularly require corrosion resistance in the cutting area.

*Prevention of whisker formation: Properties that prevent formation of hair like protrusion, which is responsible for short circuits in electronic equipment due to internal stress on the plating layer.

Application

Automotive Fuel Tanks / Electronic Components / Ship and Train Parts / General Cans / Bottle Caps

Schematic Image

Product Specification

Product Standard Code

Standard KS ASTM JIS EN
- - - - -

Coating Weight (Unit : g/m²)

Application Aim (g/m²) Remark
Electrical and Electronic Parts (Tuner, Case, etc.) 3.0 : 1.0 For Shield Can
For The Crown (Beer Bottle Cap) 4.0 : 1.0
Home Appliances (TV, DVD, Microwave, etc.) 3.0 : 1.0
For General (18L, etc.) 3.0 : 1.0
For Fuel Tank 6.0 : 2.0
Ship and Train Parts 3.0 : 1.0

Oil Weight (Unit : mg/m²)

Symbol Aim Remark
D - 1 4.0 Printing, Lacquer
D - 2 8.0 For Plain
D - 3 12.5 For Plain
D - 4 Max 20 Special Usage

Chemical Treatment (Unit : mg/m²)

Symbol Content Aim Application
300 Sodium Dichromate Dip 1.6 Food can(Mushroom)
311 Cathodic Sodium Dichromate Low Coulombs 4.0 General Can, Food/Beverage Can
314 Cathodic Sodium Dichromate High Coulombs 10.0 Special Usage

Raw Material Information

BP Standard Code

Standard KS ASTM JIS EN
Code D 3516 SPB A 625 G 3303 SPB 10202

Classification

① Classification by Type of Steel

Type of Steel Remark
MR (Medium Residual) It contains few residual minor constituents and it is widely used for applications such as containers.
L (Low Metalloid Steel) It contains particularly few residual minor constituents such as Cu, Ni, Cr, Mo, so that it is suitable for the materials of containers required improved corrosion resistance.
D (Drawing) It is aluminum killed steel, so that it is suitable for the applications, which bear deep drawing, or other working that is liable to produce Luder’s lines pattern.

② Classification by Temper

The temper grade of SR(Single Reduced) BP(Black Plate) shall be expressed by the Rockwell superficial hardness values(HR30Tm).

Symbol t ≤ 0.21mm 0.21mm < t ≤ 0.28mm t > 0.28mm Remark
T50 T1 ≤53 ≤52 ≤51 -
T52 T2 53 ± 4 52 ± 4 51 ± 4
T55 T2.5 56 ± 4 55 ± 4 54 ± 4
T57 T3 58 ± 4 57 ± 4 56 ± 4 Electrical and Electronic Parts (Tuner, Case, etc.)
T61 T4 62 ± 4 61 ± 4 60 ± 4 For The Crown (Beer Bottle Cap)
T65 T5 65 ± 4 65 ± 4 64 ± 4 For The Crown (Beer Bottle Cap)

The hardness of less than 0.21mm in nominal thickness is normally tested using Rockwell 15T scale and results converted to Rockwell 30T scale

- The temper grade of DR(Double Reduced) BP(Black Plate) shall be expressed by the Rockwell superficial hardness values(HR30Tm) or 0.2% average Yield Strength

Symbol Average Rockwell superficial hardness 0.2% average Yield Strength Remark
DR450 68 ± 4 450 ± 70 Aerosol, Food beverage Can
DR520 72 ± 4 520 ± 70 Aerosol, Food beverage Can
DR550 73 ± 4 550 ± 70 Aerosol, Food beverage Can
DR580 74 ± 4 580 ± 70 DRD, Food beverage Can
DR620 76 ± 4 620 ± 70 DRD, Food beverage Can
DR660 77 ± 4 660 ± 70 Food beverage Can

③ Classification by Surface Finish

Product Designation Symbol Remark Aim
(Ra/㎛)
KS/JIS TCC
SR Bright Finish B BF Blackplate finished to have a smooth surface with the use of temper-mill work rolls that have been ground to a low roughness 0.20~0.40
Stone Finish R Rx Blackplate finished to have a directional pattern with the use of final-mill work rolls that have been ground to a higher level of roughness than those used for the bright finish 0.38~0.58
Silver Finish S D7 Blackplate finished to have a dull surface with the use of temper-mill work rolls with dull surface texture(Electrolytic tinplate with a luster finish provided by a flow-melted tin coating) 0.70~1.30
Matt finish M D7 Blackplate finished to have a dull surface with the use of temper-mill work rolls with dull surface texture(Electrolytic tinplate with a luster finish provided by a flow-unmelted tin coating) 0.70~1.30
DR Stone Finish R Rd Blackplate finished to have a directional pattern with the use of final-mill work rolls that have been ground to a higher level of roughness than those used for the bright finish 0.25~0.45