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Stainless Steel EP tube

Designation: TP316L控硫 （S：0.005~0.012）

Standards:  ASTM A269& SEMEI F20-0706E, JIS G3459& SEMI F20-0706E，SEMI F19-0304，ASME BPE-2012

Size :

1、Ordinary BPE GRADE EP Tube:

Raw Materials are from YONGXING, Baosteel,TISCO

Inner surface roughness＜Ra0.25um,clean washing.

Package : both end with caps and two-layer plastic bag after clearing & fulled with nitrogen gas in dust-fress room. (General gas pipeline use.)

2、Clean HP GRADE EP Tube:

Raw materials are imported or domestic vacuum metling (VIM) from domestic mills.

Inner surface roughness＜Ra0.2um.

Electrolytic layer Cr/Fe ≥1.5 after electrochemical polishing & clean wash.

The thickness of the oxide layer is greater than or equal to 1.5nm, the CPT critical pitting temperature is greater than 25°C, and the resistivity is greater than or equal to 18 megohms after ultrapure water cleaning.

Package: both end with caps and two-layer plastic bag and after full with nitrogen gas in dust-free room. (Special gas pipeline use.)

2、Ultra-Pure UHP GRADE EP Tube:

Raw materials are imported or domestic vacuum metling(VIM+VAR)

Inner surface roughness＜Ra0.125um

Electrolytic layer Cr/Fe ≥1.5 after electrochemical polishing & clean wash

The thickness of the oxide layer is greater than or equal to 1.5nm, the CPT critical pitting temperature is greater than 30°C, and the resistivity is greater than or equal to 18 megohms after ultrapure water cleaning.

Package :both end with caps and two-lays plastic bag after clearing & fulled with nitrogen in dust-free room. (Special high purity corrosive gas pipeline use.)