Products
Tin Free Steel (TFS)
Product Catalog
F&B storage / Lug caps / Bottle caps / Paint Cans 14L, 18L
Product standard code
| Standard | KS | ASTM | JIS | EN |
|---|---|---|---|---|
| Code | D 3614 SPTFS | A657 | G 3315 SPTFS | 10202 |
Coating weight (unit : mg/m²)
| Symbol | Metal Chrome | Oxide Chrome | Remark |
|---|---|---|---|
| Coating Range(m²) | ≥30 | ≥5 |
Oil Weight (unit : mg/m²)
| Symbol | Aim | Remark |
|---|---|---|
| D - 1 | 4.5 | Printing, Lacquering |
Base Steel Standard Code
| Standard | KS | ASTM | JIS | EN |
|---|---|---|---|---|
| Code | D 3516 SPB | A 625 | 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 | Deep Drawing, Aerosol |
| T52 | T2 | 53 ± 4 | 52 ± 4 | 51 ± 4 | Battery case |
| T55 | T2.5 | 56 ± 4 | 55 ± 4 | 54 ± 4 | 18L liquid |
| T57 | T3 | 58 ± 4 | 57 ± 4 | 56 ± 4 | General Can |
| T61 | T4 | 62 ± 4 | 61 ± 4 | 60 ± 4 | General Can, Crown |
| T65 | T5 | 65 ± 4 | 65 ± 4 | 64 ± 4 | Food Can Top/End |
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 |
③ Classification by Surface Finish
| Product | Designation | Symbol | Remark | Aim (Ra/㎛) |
|
|---|---|---|---|---|---|
| KS/JIS | TCC | ||||
| Single Reduced 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 | |
|
Double Reduced 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 |
