ASTM-A778/A778M 2021

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A778/A778M-16(2021) Standard Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products

Published By	Publication Date	Number of Pages
ASTM	2021

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Categories: 23.040.40 - Metal fittings, ASTM

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Description

ASTM A778/A778M-16-Reapproved2021

Historical Standard: Standard Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products

ASTM A778/A778M

Scope

1.1 This specification covers straight seam and spiral butt seam welded unannealed austenitic stainless steel tubular products intended for low and moderate temperatures and corrosive service where heat treatment is not necessary for corrosion resistance. Table 1 lists the five grades covered by this specification. The user of this specification should be aware that a minimum amount of testing and examination is required of the basic product. The user requiring additional testing or examination is referred to the supplemental requirements or Ordering Information, or both. Users requiring a tubular product with post-weld heat treatment or with radiographic examination are referred to Specification A312/A312M, A358/A358M, or A409/A409M, as applicable.

1.2 This specification covers welded unannealed tubular products 3 in. [75 mm] through 48 in. [1200 mm] in outside diameter and in nominal wall thicknesses of 0.062 in. [1.57 mm] through 0.500 in. [12.70 mm] produced to this specification. Tubular products having other diameters or wall thickness, or both, may be furnished provided it complies with all other requirements of this specification.

1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining the values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

austenitic stainless steel; stainless steel tubing; steel tubing; welded steel tubing ;

ICS Code

ICS Number Code 23.040.40 (Metal fittings)

DOI: 10.1520/A0778_A0778M-16R21

Additional information

Standard Title	A778/A778M-16(2021) Standard Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products
Published Code	ASTM
Publication Date	2021
ICS Codes	23.040.40 - Metal fittings