Sanitary A270 Food Grade Polished Tube

ASTM A270 covers Seamless and Welded Austenitic Stainless Steel Sanitary Tubing, This specification's emphasis is on the surface finish of tubing, which can be specified in a number of ways to a number of different finishes. Surface finish integrity and cleanability are the main focus of this specification as surface irregularities can trap contaminants. ASTM A269 covers Seamless and Welded Austenitic Stainless Steel Tubing for General Service. The focus of A269 is mechanical integrity and corrosion resistance of stainless tubing for a variety of applications. It is incorporated in the list of acceptable material specifications in the ASME B31.3 Process Piping Code. Sanitary A270 Tubing are offered in nominal tube sizes 1/2˝ through 12˝ in T304 and T316L materials. Uniform wall thickness for 1/2˝ through 3˝ sizes measure .065(16 ga). In 4˝ size, wall thickness measures.083 (14 ga), 6˝ and 8˝ .109 (12 ga), 10" and 12" .120(11 ga)