ASTM A270 sanitary (hygienic) stainless steel tubing is the standard specification for the welded seamless, and heavily cold worked welded austenitic and ferritic stainless steel sanitary tubing. It includes the stainless steel tube types in seamless and welded ERW, EFW. ASTM A270 sanitary tubing intended applied in the diary and food industry, bio processing equipment, and having special surface finish.

ASTM A270 stainless steel tube size range

ASTM A270 sanitary stainless pipe usually refers to the small pipe diameters, normally from 1/2” to 2 1/2”, thickness from 0.049 in (1.24mm) to 0.15 in (3.81mm).

The maximum outer diameter of ASTM A270 tubing is 12 inches (304.8 mm).

ASTM A270 tubing using inch-pound as the standard unit of measure.

Wall thickness tolerance shall not vary more than 12.5%.

Referred standard for ASTM A270 sanitary tubing

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