SuperTin, a high-value product pioneered by TCC Steel, features an innovative surface treatment technology utilizing a tin-zinc alloy coating. This cutting-edge material offers superior corrosion resistance, weldability, solderability, and whisker resistance and is ideal for electronic components and construction materials.
| Standard | KS | ASTM | JIS | EN |
|---|---|---|---|---|
| - | - | - | - | - |
| Applications | Coating Weight (g/m²) | Remarks |
|---|---|---|
| Electrical and Electronic Components (Tuners, Cases, etc.) | 3.0 : 1.0 | For Shield Can |
| Crown Caps | 4.0 : 1.0 | |
| Home Appliance Housings (TV, DVD, Microwaves) | 3.0 : 1.0 | |
| General Purpose Containers (18L, etc.) | 3.0 : 1.0 | |
| Automotive Fuel Tanks | 6.0 : 2.0 | |
| Transportation Industry Parts (Vessels and railway) | 3.0 : 1.0 |
| Symbol | Weight | Remarks |
|---|---|---|
| D-1 | 4.5 | For Printing and Coating Applications |
| D-2 | 8 | White Base (Unprinted, Uncoated) |
| D-3 | 12.5 | White Base (Unprinted, Uncoated) |
| Type | Treatment Details | Coating Weight | Remarks |
|---|---|---|---|
| None | Unmarked | None | 2-Piece Can |
| 300 | Dip Treatment | 1.6 | Food Cans |
| 311 | Cathodic Sodium Dichromate | 4.0 | General Cans, Food & Beverage Cans |
| Standard | KS | ASTM | JIS | EN |
|---|---|---|---|---|
| Code | D 3516 SPB | A 625 | SPB | 10202 |
| Steel Grade | Applications |
|---|---|
| MR (Medium Residual) | MR steel contains low levels of residual elements, making it widely suitable for general container applications.(Common container material) |
| L (Low Metalloid Steel) | L steel features very low levels of residual elements such as Cu, Ni, Cr, and Mo, making it ideal for food containers that require high corrosion resistance.(Material for containers used with highly corrosive foods) |
| D (Drawing) | D steel is aluminum-killed and is used in containers that undergo deep drawing processes or are prone to stretcher strain (Luder's Lines).(Material for process-intensive containers) |
Temper grade of SR (single-reduced) blackplate is specified by the Rockwell T hardness (HR30Tm).
| Symbol | Rockwell Range | Remarks | |
|---|---|---|---|
| T50 | T1 | 45~54 | Drawn requirements, nozzles, spouts |
| T52 | T2 | 49~57 | Battery shells |
| T55 | T2.5 | 51~59 | 18L Cans |
| T57 | T3 | 53~59 | General Cans |
| T61 | T4 | 57~65 | General Cans, Bottle Caps |
| T65 | T5 | 61~69 | Food Cans (Top/End) |
Temper grade of DR (double-reduced) blackplate is specified by either the Rockwell T hardness (HR30Tm) or 0.2% yield strength.
| Symbol | Average Rockwell Hardness | Average 0.2% Yield Strength | Remarks |
|---|---|---|---|
| DR450 | 68 ± 4 | 450 ± 70 | Aerosol, Food and Beverage Cans |
| DR520 | 72 ± 4 | 520 ± 70 | Aerosol, Food and Beverage Cans |
| DR550 | 73 ± 4 | 550 ± 70 | Aerosol, Food and Beverage Cans |
| DR580 | 74 ± 4 | 580 ± 70 | DRD (Draw and Redraw) Cans, Food and Beverage Cans |
| DR620 | 76 ± 4 | 620 ± 70 | DRD (Draw and Redraw) Cans, Food and Beverage Cans |
| - | - | - | - |
| Products | Name | Symbol | Characteristics | Roughness (Ra/μm) | |
|---|---|---|---|---|---|
| KS/JIS | TCC | ||||
| SR (single-reduced) | Bright Finish | B | BF | Smooth, highly polished surface achieved through fine stone grinding, followed by coating. | 0.20~0.40 |
| Stone Finish | R | RX | Characterized by visible, directional brush marks from stone grinding, followed by coating. | 0.38~0.58 | |
| Silver Finish | S | D7 | Base steel with a rough, dull surface. Tin coating is flow-melted for a bright, reflective appearance. | 0.70~1.30 | |
| Matt Finish | M | D7 | Base steel with a rough, dull surface. Tin coating is not flow-melted, resulting in a matte appearance. | 0.70~1.30 | |
| DR (double-reduced) | Stone Finish | R | RD | Base steel with visible, directional brush marks from stone grinding. | 0.25~0.45 |
