ASTM A270/A270M-15 - 1.5.2015
 
1. Scope

1.1 This specification covers grades of seamless, welded, and heavily cold worked welded austenitic and ferritic/austenitic stainless steel sanitary tubing intended for use in the dairy and food industry and having special surface finishes. Pharmaceutical quality may be requested, as a supplementary requirement.

1.2 This specification covers tubes in sizes up to and including 12 in. [300 mm] in outside diameter.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4 Optional supplementary requirements are provided, and when one or more of these are desired, each shall be so stated in the order.

 
2. Referenced Documents

A262-15(2021)

Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

A480/A480M-25b

Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip (Includes all amendments and changes 9/10/2025).

SAE J1086

Practice for Numbering Metals and Alloys (UNS) Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.

Section VIII

Pressure Vessels

B46.1

Surface Texture (Surface Roughness, Waviness, and Lay) Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

A1016/A1016M-24a

Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes (Includes all amendments and changes 10/30/2024).

A967-05

Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts

A923-25

Standard Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels