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ASTM A409M-88/ASME SA409 

WELDED LARGE DIAMETER AUSTENITIC STEEL PIPE FOR CORROSIVE OR 
HIGH TEMPERATURE SERVICE 

(ASTM A 409 M - 88 / ASME SA 409 /ASTMA409M-88/ASMESA409)

This standard is issued under the fixed designation A 405; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ε) indicates an editorial change since the last revision or reapproval. 

1. Scope
 

1.1 This specification covers straight seam or spiral seam electric-fusion-welded, light-wall, austenitic chromium-nickel alloy steel pipe for corrosive or high-temperature service. The sizes covered are NPS 14 to 30 with extra light (Schedule 5S) and light (Schedule 10S) wall thicknesses. Table X1.1 shows the wall thickness of Schedule 5S and 10S pipe. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

1.2 Several grades of alloy steel are covered as indicated in Table 1.

1.3 Optional supplementary requirements are provided.These call for additional tests to be made, and when desired shall be stated in the order, together with the number or such tests required.

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

NOTE 1 The dimensionless designator NPS (nominal pipe size)has been substituted in this standard for such traditional terms as "nominal diameter," "size," and "nominal size."

JIS Number and Corrensponding Foreign Standards 

JIS ASTM ISO Index Number
Std.No Grade Type Std.No Grade Type Std.No Grade Type
G3468 A409 TP304 SUS 2604/5 TW47 SUS C009
304TPY SUS A358 304 SUS
SUS A409 TP304L SUS 2604/5 TW46 SUS
304LTPY SUS A358 304L SUS
SUS A358 309 SUS
309STPY SUS
SUS A358 309 SUS
310STPY SUS
SUS A409 TP316 SUS 2604/5 TW60 SUS
316TPY SUS A358 316 SUS " TW61 SUS
SUS A409 TP316L SUS 2604/5 TW57 SUS
316LTPY SUS A358 316L SUS
SUS A409 TP317 SUS
317TPY SUS
SUS
317LTPY SUS
SUS A409 TP321 SUS
321TPY SUS A778 TP321 SUS
321 SUS
SUS A409 TP347 SUS TW50 SUS
347TPY SUS A778 TP347 SUS
SUS A358 347 SUS
SUS
329JITPY SUS

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