Ultra High-Purity (UHP) Seamless Tube for
Semiconductors and LCD Display Devices
CREST UHP is precision-engineered and manufactured to stainless steel seamless tubing specifications of ASTM A213/A269 and/or JIS G3459 with the specific purpose of servicing ultra high-purity applications such as semiconductors, microelectronics, high-technology display industries (LCD, OLED and LED) and poly-silicon solar-cell industries.
| Dimension | |
|---|---|
| OD [inch/mm] | WT [inch/mm] |
| 1/16″(1.59) | 0.035″(0.40)B |
| 1/8″(3.18) | 0.0157″(0.56) |
| 1/4″(6.35) | 0.022″(0.89) |
| 3/8″(9.53) | 0.035″(0.89) |
| 1/2″(12.7) | 0.049″(1.24) |
| 3/4″(19.05) | 0.065″(1.65) |
| 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) |
| 3.0″(76.2) | 0.065″(1.65) |
| 4.0″(101.6) | 0.083″(2.11) |
| Code | Specifications | Choice of Pre-Materials | Surface Finish (max) | ||
|---|---|---|---|---|---|
| BA UHP-016 |
A213/A269 JIS G3459 |
316L VIM/VAR | ID | < 15 RA | < 0.38 μm |
| OD | < 32 RA | < 0.8 μm | |||
| EP UHP-018 |
A213/A269 JIS G3459 |
316L VIM/VAR | ID | < 7 RA | < 0.17 μm |
| OD | < 32 RA | < 0.8 μm | |||