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Kc Al-tech Co., Ltd.
[Korea]
Standard Size
| Form | Outside | Tolerance | tdickness | Inside Burr | Ovality | Clad Outside | Hardness |
| Round Pipe | 16 | ±0.08 | 1.3 | 0.1 | ±0.05 | AA4004 AA4045 AA4047 AA4343 (8~12%) + Zn(1%) Core AA7072 AA3003 |
H14 ~ H18 |
| 18 | ±0.08 | 1.2 1.3 1.5 |
0.1 | ±0.05 | |||
| 19 | ±0.08 | 1.2 1.3 1.5 |
0.1 | ±0.05 | |||
| 20 | ±0.08 | 1.2 1.3 1.5 |
0.1 | ±0.05 | |||
| 20.2 | ±0.08 | 1.3 1.5 |
0.1 | ±0.05 | |||
| 21 | ±0.08 | 1.3 1.5 |
0.1 | ±0.05 | |||
| 22 | ±0.08 | 1.3 1.5 |
0.1 | ±0.05 | |||
| 22.2 | ±0.08 | 1.3 1.5 |
0.1 | ±0.05 | |||
| 25 | ±0.1 | 1.5 | 0.1 | ±0.1 | |||
| 25.2 | ±0.1 | 1.5 | 0.1 | ±0.1 | |||
| 27 | ±0.1 | 1.5 | 0.1 | ±0.1 | |||
| 30 | ±0.1 | 1.5 | 0.1 | ±0.1 | |||
| 31.8 | ±0.2 | 1.5 | 0.1 | ±0.1 | |||
| 40 | ±0.2 | 1.5 | 0.1 | ±0.1 | |||
| 50 | ±0.3 | 1.5 2 |
0.2 | ±0.3 | |||
| Box Rectangular Flat-Oval |
8x8 | ±0.1 | 0.5 1 |
0.1 | ±0.05 | AA3003 AA5052 |
H14 ~ H18 |
| 40x40 | ±0.1 | 1 3 |
0.2 | ±0.2 | |||
| 7x10 | ±0.1 | 0.5 2 |
0.1 | ±0.2 |
Chemical Composition
| Element | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
| Core AA3003 |
0.6 | 0.7 | 0.2 ~ 0.05 | 1.5 ~ 1.0 | 0.05 | 0.05 | 0.10 | rem | |
| Clad Side AA4004 |
0.9 ~ 10.5 | 0.8 | 0.25 | 0.1 | 1.0 ~ 2.0 | 0.05 | 0.20 | 0.02 | rem |
| Clad Sid AA4045 |
9.0 ~ 11.0 | 0.8 | 0.3 | 0.05 | 0.05 | 0.05 | 0.1 ~ 0.7 | rem | |
| Clad Sid AA4047 |
11.0 ~ 13.0 | 0.8 | 0.30 | 1.15 | 0.1 | 0.05 | 0.2 | rem | |
| Clad Sid AA4343 |
6.8 ~ 8.2 | 0.8 | 0.25 | 0.1 | 0.05 | 0.05 | 1.3 ~ 0.7 | rem |
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