ASTM 316L EP Stainless Steel Tube for UHP Gas

316L electropolished stainless steel tubing for clean, high-purity laboratory gas distribution. ASTM fractional sizes and wall options are selected against the required gas path.

This ASTM-size 316L EP tube is intended for laboratory and process gas lines where the wetted surface finish and documented tube dimensions matter. Select the tube outside diameter and wall against the piping drawing, then agree the EP grade, cleaning and inspection requirements before ordering.

Technical parameters

Material / finish 316L stainless steel; electropolished (EP) interior
Dimensional system ASTM fractional tube sizes, 1/8–6 in in the catalog
Example size 1/2 in: OD 12.7 mm; wall 0.99 or 1.24 mm
Listed lengths 4,000 or 6,000 mm for the 1/2 in example
EP surface options Ra <0.13 µm or <0.25 µm, subject to selected finish grade
Tube construction Seamless at the 1/2 in example

Catalog dimensions are selection references. Confirm the exact grade, finish, geometry and inspection documents against the approved order drawing.

Application and selection

Use this family for instrument supply runs, distribution headers and other clean gas paths that call for an EP stainless-steel bore. The illustrated cutaway images show the internal surface concept; order dimensions and finish must follow the approved drawing.

What to send for a quotation

Send the gas list, pressure range, ASTM tube size, wall, EP roughness target, required length and cleanliness or documentation requirements. Contact LGF with your requirements.

Explore the UHP stainless steel tubing and fittings range or review laboratory gas piping design guidance.

Product and process images

Cleanroom inspection of stainless steel tubes
Cleanroom inspection of stainless steel tubes
Close view of 12.7 by 1.24 mm 316L EP tube ends
Close view of 12.7 by 1.24 mm 316L EP tube ends
Close view of a polished stainless steel tube interior
Close view of a polished stainless steel tube interior