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UHP EP Double Melt (D/M)

Ultra High-Purity (UHP) Seamless Tube for

Semiconductors and Microelectronics

CREST UHP EP Double-Melt tubing product (D/M) is precision-engineered and manufactured to stainless steel seamless tubing specifications of ASTM A213/A269 and/or JIS G3459 with the purpose of servicing ultra high-purity applications such as semiconductors, microelectronics, flat panel display industries (OLED) and poly-silicon solar-cell industries.

Dimension
OD [inch/mm] WT [mm]
1/8″(3.18) [0.5, 0.70]
1/4″(6.35) [0.89, 1.00]
3/8″(9.53) [0.89, 1.00]
1/2″(12.7) [1.00, 1.24]
3/4″(19.05) [1.65]
1″(25.4) [1.65]
Product Code Specifications Choice of Pre-Materials Surface Finish (max)
BA
UHP-016
A213/A269
JIS G3459
SUS316L VIM/VAR ID < 15 RA < 0.38 μm
OD < 32 RA < 0.8 μm
EP
UHP-018
A213/A269
JIS G3459
SUS316L VIM/VAR ID < 7 RA < 0.17 μm
OD < 32 RA < 0.8 μm