TFS's exceptional high corrosion resistance and printability ensures a reliable performance for packaging applications that demand quality and preservation and is an economical choice compared to tinplate.
| Standard | KS | ASTM | JIS | EN |
|---|---|---|---|---|
| Code | D 3614 SPTFS | A657 | G 3315 SPTFS | 10202 |
| Symbol | Metal Chrome | Oxide Chrome |
|---|---|---|
| Coating Range (m²) | ≥ 30 | ≥ 5 |
| 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, without coating. | 0.25~0.45 |
