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STANDARD SPECIFICATIOIN FOR ELECTRIC FUSION WELDED AUSTENITIC 

CHROMIUM NICKEL ALLOY STEEL PIPE FOR HIGH TEMPERATURE SERVICE1

1. Scope

1.1 this specification2 covers electric-fusion-welded austenitic chromium-nickel alloy steel pipe suitable for corrosive
or high-temperature service, or both. (Although no restrictions are placed on the sizes of pipe which may be furnished
under this specification, commercial practice is commonly limited to sizes not less than NPS 8).

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." 

1.2 This specification covers nineteen grades of alloy steel as indicated in Table 1. 
The selection of the proper alloy and requirements for heat treatment shall be at the discretion of the purchaser, dependent
on the service conditions to be encountered.

1.3 Five classes of pipe are covered as follows: 

1.3.1 Class 1 - Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

1.3.2 Class 2 - Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required. 

1.3.3 Class 3 - Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed. 

1.3.4 Class 4 - Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal(see 5.2.2.1 and 5.2.2.2). 

1.3.5 Class 5 - Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed. 

1.4 Supplementary requirements covering provisions ranging from additional testing to formalized procedures for manufacturing practice are provided. Supplementary Requirements S1 through S6 are included as options to be specified when desired. 

1.5 The values stated in either inch-pound units of SI units are to be regarded 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 nonconformace with the specification. 

The inch-pound units shall apply unless the "M"designation of this specification is specified in the order.

TABLE 1 Plate and Filler Metal Specifications

Grade UNS Designation Material, Type Astm Plate Specifiecation No. and Grade Filler Metal Classification and UNS DesignationAfor ApplicableBAWS Specification
A5.4 A5.9 A5.11 A5.14 A5.22 A5.30
Class. UNS Class. UNS         Class. UNS Class. UNS
304 S30400 304 A 240 Type 304 E308 W30810 ER308 S30880 ... ... ... ... E308T W30831 IN308 S30880
W30840
304L S30403 304L A 240 Type 304 E308L W30816 ER308L S30883 ... ... ... ... E308LT W30835 IN308L S30883
W30843
304N S30451 304N A 240 Type 304 E308 W30810 ER308 S30880 ... ... ... ... E308T W30831 IN308 S30880
W30840
304LN S30453 304LN A 240 Type 304LN E308L W30813 ER308L S30883 ... ... ... ... W308LT W30835 IN308L S30883
W30843
304H S30409 304H A 240 Type 304H E308H W30810 ER308 S30880 ... ... ... ... E308T W30831 IN308 S30880
W30840
309 S30900 309 A 240 Type 309 E309 W30910 ER309 S30980 ... ... ... ... E309T W3031 ... ...
W30940
309Cb S30940 309Cb A 240 Type 309Cb E308Cb ... ... ... ... ... ... ... ... ... ... ...
309S S30908 309S A 240 Type 309S ... ... ... ... ... ... ... ... ... ... ... ...
310 S31000 310 A 240 Type 310 E310 W31010 ER310 S31080 ... ... ... ... E310T W31031 IN310 S31080
W31040
310Cb S31040 310Cb A 240, Type 310Cb E310Cb ... ... ... ... ... ... ... ... ... ... ...
310s S31008 310s A 240, Type 310S ... ... ... ... ... ... ... ... ... ... ... ...
316 S31600 316 A 240, Type 316 E316 W31610 ER346 S31680 ... ... ... ... E316T W31631 IN316 S31680
W31640
316L S31603 316L A 240, Type 316L E316L W31613 ER316L S31683 ... ... ... ... E316LT W31635 IN316L S31683
W31643
316N S31651 316N A 240 Type 316N E316 W31610 ER316 S31680 ... ... ... ... E316T W31631 IN316 S31680
W31640
316LN S31653 316LN A 240 Type 316LN E316L W31613 ER316L S31683 ... ... ... ... E316LT W31635 IN316L S31683
W31643
316H S31609 316H A 240 Type 316H E316H W31610 ER316H S31680 ... ... ... ... E316T W31631 IN316 S31680
W31640
321 S32100 321 A 240 Type 321 E347 W34710 ER321 S32180 ... ... ... ... E347T W34733 IN348 S34780
W32140
ER347 S34780
W34740
347 S34700 347 A 240 Type 347 E347 W34710 ER347 S34780 ... ... ... ... E347T W34733 IN348 S34780
W34740
348 S34800 348 A 240 Type 348 E347 W34710 ER347 S34780 ... ... ... ... E347T W34733 IN348 S34780
W34740
XM-19 S22100 XM-19 A 240 Type XM-19 E209 W32210 ER209 S20980 ... ... ... ... ... ... ... ...
W32240
XM-29 S28300 XM-29 A 240 Type XM-29 E240 W32410 ER240 S23980 ... ... ... ... ... ... ... ...
W32440
... S31254 ... A240 S31254 ... ... ... ... ... ... ... ... ... ... ... ...
... S30815 ... A240 S30815 ... ... ... ... ... ... ... ... ... ... ... ...
... S31725 ... A240 S31725 ... ... ... ... ... ... ... ... ... ... ... ...
... S31726 ... A240 S31726 ... ... ... ... ... ... ... ... ... ... ... ...
... S30600C ... A240 S30600C ... ... ... ... ... ... ... ... ... ... ... ...
... S24565 ... A240 S24565 ... ... ... ... ... ... ... ... ... ... ... ...


ANew designation destablished in accordance with ASTM E 527 and SAE J1086, 
Practice for Numbering Metals and Alloys(UNS).  
BChoice of American Welding Society specification depends on the welding process used.  
CIn previous deitons, S30600 was incorrectly shown as S01815.

Ordering Information 

Orders for amterial under this specificatoin should include the following, as required, 
to describe the desired material adequately : 


TABLE 1 Plate and Filler Metal Specifications

Grade UNS Desg. Material, Type Astm Plate Spec. No. and Grade Filler Metal Classification and UNS Designation A for Applicable BAWS Specification
A5.4 A5.9 A5.22 A5.30
Class. UNS Class. UNS Class. UNS Class. UNS
304 S30400 304 A 240 Type 304 E308 W30810 ER308 S30880 E308T W30831 IN308 S30880
W30840
304L S30403 304L A 240 Type 304 E308L W30816 ER308L S30883 E308LT W30835 IN308L S30883
W30843
304N S30451 304N A 240 Type 304 E308 W30810 ER308 S30880 E308T W30831 IN308 S30880
W30840
304LN S30453 304LN A 240 Type 304LN E308L W30813 ER308L S30883 W308LT W30835 IN308L S30883
W30843
304H S30409 304H A 240 Type 304H E308H W30810 ER308 S30880 E308T W30831 IN308 S30880
W30840
309 S30900 309 A 240 Type 309 E309 W30910 ER309 S30980 E309T W3031 ... ...
W30940
309Cb S30940 309Cb A 240 Type 309Cb E308Cb ... ... ... ... ... ... ...
309S S30908 309S A 240 Type 309S ... ... ... ... ... ... ... ...
310 S31000 310 A 240 Type 310 E310 W31010 ER310 S31080 E310T W31031 IN310 S31080
W31040
310Cb S31040 310Cb A 240, Type 310Cb E310Cb ... ... ... ... ... ... ...
310s S31008 310s A 240, Type 310S ... ... ... ... ... ... ... ...
316 S31600 316 A 240, Type 316 E316 W31610 ER346 S31680 E316T W31631 IN316 S31680
W31640
316L S31603 316L A 240, Type 316L E316L W31613 ER316L S31683 E316LT W31635 IN316L S31683
W31643
316N S31651 316N A 240 Type 316N E316 W31610 ER316 S31680 E316T W31631 IN316 S31680
W31640
316LN S31653 316LN A 240 Type 316LN E316L W31613 ER316L S31683 E316LT W31635 IN316L S31683
W31643
316H S31609 316H A 240 Type 316H E316H W31610 ER316H S31680 E316T W31631 IN316 S31680
W31640
321 S32100 321 A 240 Type 321 E347 W34710 ER321 S32180 E347T W34733 IN348 S34780
W32140
ER347 S34780
W34740
347 S34700 347 A 240 Type 347 E347 W34710 ER347 S34780 E347T W34733 IN348 S34780
W34740
348 S34800 348 A 240 Type 348 E347 W34710 ER347 S34780 E347T W34733 IN348 S34780
W34740
XM-19 S22100 XM-19 A 240 Type XM-19 E209 W32210 ER209 S20980 ... ... ... ...
W32240
XM-29 S28300 XM-29 A 240 Type XM-29 E240 W32410 ER240 S23980 ... ... ... ...
W32440
... S31254 ... A240 S31254 ... ... ... ... ... ... ... ...
... S30815 ... A240 S30815 ... ... ... ... ... ... ... ...
... S31725 ... A240 S31725 ... ... ... ... ... ... ... ...
... S31726 ... A240 S31726 ... ... ... ... ... ... ... ...
... S30600C ... A240 S30600C ... ... ... ... ... ... ... ...
... S24565 ... A240 S24565 ... ... ... ... ... ... ... ...


ANew designation destablished in accordance with ASTM E 527 and SAE J1086,
Practice for Numbering Metals and Alloys(UNS).  
BChoice of American Welding Society specification depends on the welding process used.  
CIn previous deitons, S30600 was incorrectly shown as S01815. 

APPENDIX (Nonmandatory Information) X1. TABLE X1.1 IS BASED ON TABLE 1 OF THE AMERICAN NATIONAL 
STANDARD FOR STAINLESS STEEL PIPE (ANSI B36.19-1965)
 


TABLE X1.1 Dimensions of Welded and Seamless Stainless Steel Pipe


NOTE - The decimal thickness listed for the respective pipe sizes represents their nominal or average walll dimensions. 

NPS
Designator
Outside Diameter Nominal Wall Thickness
in. mm Schedule 5SA Schedule 10SA Schedule 40SA Schedule 80SA
in. mm in. mm in. mm in. mm
8 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.500 12.70
10 10.750 273.05 0.134 3.40 0.165 4.19 0.365 9.27 0.500B 12.70B
12 12.750 323.85 0.156 3.96 0.180 4.57 0.375B 9.52B 0.500B 12.70B
14 14.000 355.60 0.156 3.96 0.188B 4.78B ... ... ... ...
16 16.000 406.40 0.165 4.19 0.188B 4.78B ... ... ... ...
18 18.000 457.20 0.165 4.19 0.188B 4.78B ... ... ... ...
20 20.000 508.00 0.188 4.78 0.188B 4.78B ... ... ... ...
22 22.000 558.80 0.188 4.78 0.218B 5.54B ... ... ... ...
24 24.000 609.60 0.218 5.54 0.250 6.35 ... ... ... ...
30 30.000 762.00 0.250 6.35 0.312 7.92 ... ... ... ...





Material Comparison Tables (ASTM →KS, JIS, DIN, BS, NBN, NF, UNI)

ASTM
STANDARD
UNS NO. KOREA/JAPANES GERMAN BRITISH FRENCH ITALIAN
KS/JIS Symbol KS/JIS Numbe DIN Type DIN Number Materiral Number Remarks B.S Number B.S Grade Remarks AFNOR Type NF Number Ramarks UNI Type UNI Number Ramarks
A 358 Electric-Fusion Welded Austenitic Cr-Ni Alloy sreel Pipe for High-Temperature Service
Grede 304 S30400 STS 304TPY/
SUS310STPY
D3588 / G3468 X5 CrNi 18 9 17440 1.4301 (3b) 3605 304S25 LWHT(3b) Z6 CN 18.09 A36-209 (3b) X6 CrNi 18 10 8317 (3b)
Grede 310 S31000 STS 310STPY/
SUS310STPY
D3588 / G3468 X 12 CrNi 25 21 1.4845 WBL-470(3b) (3) A36-209 X22 CrNi 25 20 6900 (3b)(11)
Grede 316 S31600 STS 316TPY / SUS316TPY D3588 / G3468 X5 CrNiMo 18 10 17440 1.4401 (3b) 3605 316S26 LWHT(3b) Z6 CND 17.11 A36-209 (3b) X6CrNiMo 17 12 8317 (3b)
Grede 321 S32100 STS 321TPY/
SUS 321TPY
D3588 / G3468 X10 CrNiTi 18 9 17440 1.4541 (3b)(17) 3605 321S22 LWHT(3b) Z6 CNT 18.10 A36-209 (3b) X6 CrNiTi 18 10 8317 (3b)
Grede 347 S34700 STS 347TPY/
SUS 347TPY
D3588 / G3468 X10 CrNiNb 18 9 17440 1.4550 (3b)(17) 3605 347S17 LWHT(3b) Z6 CN Nb 18.10 A36-209 (3b) X6 CrNiNb 18 10 8317 (3b)#nps


JIS Number and Corrensponding Foreign Standards

JIS ASTM ISO Index Number
Standard Number Grade Type Standard Number Grade Type Standard Number 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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