ASTM A213 / A213M

This specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, etc.The tubing sizes and thicknesses usually furnished to this specification are 1⁄8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.

ASTM A213 / A213M Grades

Materials Grades UNS Designation
Low Alloy Steel
T2 K11547
T5 K41545
T5b K51545
T5c K41245
T9 K90941
T11 K11597
T12 K11562
T17 K12047
T21 K31545
T22 K21590
T23 K40712
T24 K30736
T36 K21001
T91 K90901
T92 K92460
T122 K91271
T911 K91061
Austenitic and Ferritic Stainless Steel
TP201 S20100
TP202 S20200
XM-19 S20910
A S21500
S25700
TP304 S30400
TP304L S30403
TP304H S30409
A S30432
S30434
TP304N S30451
TP304LN S30453
A S30615
S30815
TP309S S30908
TP309H S30909
TP309LMoN S30925
TP309Cb S30940
TP309HCb S30941
- S30942
A S31002
TP310S S31008
TP310H S31009
TP310MoCbN S31025
S31035
TP310Cb S31040
TP310HCb S31041
TP310HCbN S31042
TP310MoLN S31050
A S31060
S31254
S31272
S31277
TP316 S31600
TP316L S31603
TP316H S31609
TP316Ti S31635
TP316N S31651
TP316LNM S31653
TP317 S31700
TP317L S31703
TP317LM S31725
TP317LMN S31726
A S32050
TP321 S32100
TP321H S32109
A S32615
S33228
S34565
TP347 S34700
TP347W S34705
TP347H S34709
TP347HFG S34710
TP347LN S34751
TP348 S34800
TP348H S34809
- S35045
XM-15 S38100
- S38815
Alloy 20 N08020
A N08367
800 N08800
800H N08810
- N08811
N08904
N08925
N08926
TP444 S44400