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316L SS UHP tubes&pipes are manufactued from a specially selected mother pipes, controlled lower content of sulfur levels to promote reliable,consistent welding.
Seamless,Semi-Seamless and Welded types are available for wide selection and cost saving options.There are varietied inside surface finish level:Annealed and Pickled(AP),Mechanically Polished(MP),Bright Annealed(BA),Electro Polished(EP).
BA&EP grade tubes & pipes are chemically cleaned and passivated to keep nonvolatile residue levels to comply with ASTM G93 or SEMI E 49.6. UHP tubes &pipes are rinsed with 18MΩ di water and purged with 99.9995% filtered nitrogen and are packed in an class 10 cleanroom.
Each tube&pipes is marked to identify manufacturer,material type and heat code. BA&EP grade tubes&pipes are packed as following manner:eds are faced and protected with polyamide nylon film and polyethylene caps, packed in single(BA grade) or double(EP grade) polyethylene bags.
Tubes & Pipes are available with different inside diameter finish levels.Please refer to our offer surface grade、Chemical Composition、Physical Prorerties、Particle Contribution Test、Quality Sssurance Values、Dimension Tolerance.
We have a variety of professional inspection equipment:Scanning Electron Microscope（SEM）,Energy Dispersive Spectroscopy（EDS）, Surface Roughness Gauge,Particle Counter,Micro Vickers,Moisture Analyzer,Metallography Microscope,Tensile Testing Machined etc.