Aluminium Cap Sheet Technical Data
1.Allowance of squareness (Vertical degree) of cut side.
(1).It is to be measured at the point of 660mm length , and it's guaranteed less than 0.3mm all angle. (Attached how to measure the vertical degree)
Measure Point : 660mm
(2) It is to be recorded the measurement.
2.Surface pretreatment：
A. Chromium phosphate conversion coating.
(1).Cr Volume： 5~15 mg/M2
(2).Cr Volume： 5~15 mg/M2
B. Mill finish
3.Flatness：
Each Sides on table Less than 2mm x 3 waves
Less than 2mm x 3 waves Less than 3mm
4.Packing, Marking：
(1) 1 case shall include 1500 pieces max.
(2) Marking shall be shown on outside of the case.
(a) Product name
(b) Size
(c) Quantity(Piece)
(d) Identification No(Label No.)
(e) Coil No.(Inside the each case)
(f) Product date
5.Inspection certificate (Actual data)：
(a) Chemical Composition
(b) Mechanical Properties
(c) Size
(d) Earing Ratio
6.Quality
Aluminum closure sheet shall be free from defects such as hole、corrosion、scratch,& Insect on surface, and flaws detrimental to practical use. Burr is less than 3/100mm.
| 7. Chemical composition. | ||||||||||
| Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al | ||
| 3105 | 0.6max. | 0.7max. | 0.3max. | 0.3~0.8 | 0.2~0.8 | 0.2max. | 0.4max. | 0.1max. | Remainder | |
| 8011 | 0.95 below | 0.05～0.2 | 0.5max. | - | - | 0.1max. | - | 99.00more | ||
| 1060 | 0.25 | 0.35 | 0.05 | 0.03 | 0.03 | - | 0.05 | 0.03 | 99.6 | |
| 1070 | 0.20 | 0.25 | 0.03 | 0.03 | 0.03 | - | 0.07 | 0.03 | 99.7 | |
| 3004 | 0.3 | 0.7 | 0.25 | 1.0-1.5 | 0.8-1.3 | - | 0.25 | - | Remainder | |
| 5052 | 0.25 | 0.40 | 0.10 | 2.2-2.8 | 0.15-0.35 | 0.15-0.35 | 0.10 | - | Remainder | |
| 5182 | 0.20 | 0.35 | 0.15 | 0.20-0.50 | 4.0-5.0 | 0.10 | 0.25 | 0.10 | Remainder | |
| 8. Mechanical property: | ||||||
| Alloy and Temper | Thickness(mm) | Surface |
Tensile strength(N/mm2) [target] |
Elongation % |
Earring Ratio % |
|
| 3105-H12 | 0.2 | Mill Finish | 131~160[145] | 5 Min. | -2.5～+2.5 | |
| 3105-H14 | 0.23 | Mill Finish | 157~186[168] | 2 Min. | -2.5～+2.5 | |
| 8011-H14 | 0.22,0.23 | Mill Finish | 118~137[128] | 2 Min. | -1.5～+1.5 | |
| 1060-O | 0.20-0.27 | Mill Finish | 65-95 | 20 Min. | -1.5～+1.5 | |
| 1070-H14 | 0.6 | Mill Finish | 60-90 | 23 Min. | -1.5～+1.5 | |
| 3004-O | 0.2-0.3 | Mill Finish | 155-200 | 13 Min. | -2.5～+2.5 | |
| 5052 H19 | 0.2-0.5 | Mill Finish | 270 Min. | 1 Min. | ||
| 5182 H19 | 0.2-0.5 | Mill Finish | 380 Min. | 1 Min. | ||
| 9. Dimension Tolerance: | ||
| Allowance of Sheet thickness | Allowance of width | Allowance of length |
| ±0.005mm | +0.5, -0mm | +0.5, -0mm |
