Precision-Cleaned High-Vacuum Products for
Semiconductor and LCD Applications
CREST VT is precision-engineered and manufactured as seamless according to ASTM A213 and welded-as-seam-less (WSL) according to A269/A270 or JIS G3459 with the specific purpose of servicing high-vacuum components for semiconductor and related industries such as LCD, LED, OLED, poly-silicon and solar cells.
High-Vacuum Tube
| Dimension | |
|---|---|
| OD [inch/mm] | WT [inch/mm] |
| 1/2″(12.7) | 0.049″(1.24) |
| 1/2″(12.7) | 0.065″(1.65) |
| 3/4″(19.05) | 0.049″(1.24) |
| 1″(25.4) | 0.049″(1.24) |
| 1″(25.4) | 0.065″(1.65) |
| 1.5″(38.1) | 0.065″(1.65) |
| 2″(50.8) | 0.065″(1.65) |
| 2.5″(63.5) | 0.065″(1.65) |
| 3″(76.2) | 0.065″(1.65) |
| 4″(101.6) | 0.065″(1.65) |
| 4″(101.6) | 0.083″(2.11) |
| 6″(152.4) | 0.083″(2.11) |
| 6″(152.4) | 0.109″(2.77) |
| Code (Finish) | Specifications | Pre-Materials | Surface Finish (max) | ||
|---|---|---|---|---|---|
| SF0 BA |
A269/A270 | 304L 316L |
ID | < 40 RA | < 1.0 μm |
| OD | < 40 RA | < 1.0 μm | |||
| SF0 BAP |
A269/A270 | 304L 316L |
ID | < 40 RA | < 1.0 μm |
| OD | < 32 RA | < 0.8 μm | |||
| SF1 MP |
A269/A270 | 304L 316L |
ID | < 15 RA | < 0.4 μm |
| OD | < 32 RA | < 0.8 μm | |||
| SF4 EP |
A269/A270 | 304L 316L |
ID | < 10 RA | < 0.25 μm |
| OD | < 32 RA | < 0.8 μm | |||