NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International (www.astm.org) for the latest information Designation: A249/A249M − 15a Usedin USDOE-NE Standards Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat- Exchanger, and Condenser Tubes1 This standard is issued under the fixed designation A249/A249M; 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 (´) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S. Department of Defense. 1. Scope* 1.7 The following safety hazards caveat pertains only to the 2 1.1 This specification covers nominal-wall-thickness test method described in the Supplementary Requirements of welded tubes and heavily cold worked welded tubes made from this specification. This standard does not purport to address all the austenitic steels listed in Table 1, with various grades of the safety concerns, if any, associated with its use. It is the intended for such use as boiler, superheater, heat exchanger, or responsibility of the user of this standard to establish appro- condenser tubes. priate safety and health practices and determine the applica- bility of regulatory limitations prior to use. A specific warning 1.2 Grades TP304H, TP309H, TP309HCb, TP310H, statement is given in Supplementary Requirement S7, Note TP310HCb, TP316H, TP321H, TP347H, and TP348H are S7.1. modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended 2. Referenced Documents for high-temperature service such as for superheaters and 2.1 ASTM Standards:3 reheaters. A262 Practices for Detecting Susceptibility to Intergranular 1.3 The tubing sizes and thicknesses usually furnished to Attack in Austenitic Stainless Steels this specification are 1⁄8 in. [3.2 mm] in inside diameter to 12 in. A480/A480M Specification for General Requirements for [304.8 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to Flat-Rolled Stainless and Heat-Resisting Steel Plate, 8.1 mm], inclusive, in wall thickness. Tubing having other Sheet, and Strip dimensions may be furnished, provided such tubes comply A1016/A1016M Specification for General Requirements for with all other requirements of this specification. Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless 1.4 Mechanical property requirements do not apply to Steel Tubes tubing smaller than 1⁄8 in. [3.2 mm] in inside diameter or 0.015 E112 Test Methods for Determining Average Grain Size in. [0.4 mm] in thickness. E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing 1.5 Optional supplementary requirements are provided and, E273 Practice for Ultrasonic Testing of the Weld Zone of when one or more of these are desired, each shall be so stated Welded Pipe and Tubing in the order. E527 Practice for Numbering Metals and Alloys in the 1.6 The values stated in either inch-pound units or SI units Unified Numbering System (UNS) are to be regarded separately as standard. Within the text, the 2.2 ASME Boiler and Pressure Vessel Code: SI units are shown in brackets. The values stated in each Section VIII 4 system may not be exact equivalents; therefore, each system 2.3 Other Standard: shall be used independently of the other. Combining values SAE J1086 Practice for Numbering Metals and Alloys from the two systems may result in non-conformance with the (UNS)5 standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order. 3 For referenced ASTM standards, visit the ASTM website, www.astm.org, or 1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, contact ASTM Customer Service at
[email protected]. For Annual Book of ASTM Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on A01.10 on Stainless and Alloy Steel Tubular Products. the ASTM website. 4 Current edition approved Dec. 1, 2015. Published December 2015. Originally Available from American Society of Mechanical Engineers (ASME), ASME approved in 1941. Last previous edition approved in 2015 as A249/A249M–15. International Headquarters, Two Park Ave., New York, NY 10016-5990, http:// DOI: 10.1520/A0249_A0249M-15A. www.asme.org. 2 5 For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from Society of Automotive Engineers (SAE), 400 Commonwealth cation SA-249 in Section II of that Code. Dr., Warrendale, PA 15096-0001, http://www.sae.org. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 1 5 3.0 14.030 1..00 16. %A Composition..00 0..... .08 2...16–0.0–22. .50–0.00 .030 1.0 26.030 1.030 1.00 0...00 16.0–19. .0–22. TP305 S30500 0.00 0.50 .00 0.045 0.030 0.020 3.50–1.0–28.045 0..00 0.10 2.045 0. .0 12.5 4..00 23.030 1.030 1.80 0. .0 .00 0.10–0.045 0. S30601 0.045 0.0 11.0 2.. ..... . TABLE 1 Chemical Requirements.00 .20 . .00 0..00 16....030 1..015 1...0 6.0–22..7 .00 17.00 0. .0 10.03 6. Cb 10x C-1.0–22..5–16.10 2. 0. .80 19.0 .0–18..0 11.00 18.013 5. 0.. ..00 22.030 1.00 0.0–18.045 0.030 1.00 0.0 13.0 8..00 0.00 0.25 1..15 7. 0.00 17.08 11.030 2.40 0. ...00 17. .10 2.00 18..0 . % Grade UNS Carbon Manganese Phosphorous Sulfur Silicon Chromium Nickel Molybdenum NitrogenC Copper Other DesignationB . % Grade UNS Carbon Manganese Phosphorous Sulfur Silicon Chromium Nickel Molybdenum NitrogenC Copper Other DesignationB .30 V 0...10–0. .00 18.50–1..0 0. .16 .0 ..00 0.00 0.20–0.0–18.00 22. TP304LD S30403 0..0–11.16 . TP 201LN S20153 0.045 0.00–2...10 TP310S S31008 0.5 4.32 0.0–6..00 0..00 20.24 2.10–0..00 0..030 0. . .06 4.0 0.04–0.0 3.5–17..0 8. Composition.00 0.0–19.0–18...5 13... .10–0....00–3.045 0.0–4. S31277 0...75 16.0 21.0–20...0–14.045 0. S32050 0..0–26...5–20..0–19.. S31726 0.35 .04–0.10–0.0 .030 0...0–26.0 19.045 0..045 0..0–13... Ce 0...00 19. S31655 0.0 .0 0..0 2.5–23.08 2.045 0.10–0.5 6..10 TP309HCb S30941 0.50–1.5 0..0–13..00 16.50 0.0–6..5–14..20 ...015 0.18–0. . TP316 S31600 0..00 18.5 0.08 TP309S S30908 0.25 . .0–5.0 . TP310Cb S31040 0.0 10.06 0.045 0.00 0.0 0.0–24.045 0..0–6.0 2.0–19.00–3..10 2.0–20..0–20.. Cb 10x C-1. .0–18..040 0.030 0...0–14.04–0. .0 0.5 0.0–18. .0 12. .030 1. .05–0.. .5 0...0–20. 0.. .0–20..0–10. ..08 2..045 0.00 18. 0.08 2.50–2.030 1. TP316H S31609 0. Cb 10x C-1.0–15.04–0.0–12.0–22.045 0.00 18..0–6.0 3. .. .0–15.030 1..0 14.0–18.00 0..030 3.030 1.0–5. Cb 10x 2 C-1..8–4.0 17.00–3.00 24.0–20. 0. .0 9.045 0.50–7. TP309Cb S30940 0. Cb 0.14–0.80 0.0–26. .4–7.030 1.030 2.20 .. . Ce 0..00 .5 11.6 17...00 0.00 22.. TPXM-19 S20910 0..0–4.030 2. ..0–24.0–24.030 2.. TP304 S30400 0.030 1.0–5.020 1.0–14..30–0.0–20...18 .5–19..... . TP310H S31009 0.10 ..0–20.00 0..5–21.. TP304H S30409 0. . .0–15...00 17.030 1.0–19.80 0.0–24.. TP309H S30909 0.0–26.030 1..0 .0–23..0 8......50 . .0 . .. S30815 0... ..00 17.0–17.04–0.045 0.0–11.0 . .00 0.045 0.00–3.5–8..10–0.0–18.0 2. .030 1..010 0.0–15.08 2.030 1.40 .0–24.5 8.00–3.030 2.030 2.0 . S31050 0.20–0...5 17.04–0... ...0 17.0 18.0 0. TP317L S31703 0.00 0.00 0.00 0.035 0.030 1. .00 22..030 1. S31254 0.. .10 2.0 .03–0. .50 W 1.0 19....0 21. ..010 0.00 16.15 5..0 ..40 . . TP 202 S20200 0.5–5.030 1.40 24.045 0.045 0. ..50 20.00 0. TP316LND S31653 0..16 .0–25.5–16.5 0.. S30415 0..00 18.0 .00–3.. % Grade UNS Carbon Manganese Phosphorous Sulfur Silicon Chromium Nickel Molybdenum NitrogenC Copper Other DesignationB TP 201 S20100 0. .020 1.030 1..0 6...00 18. 0. TP316N S31651 0.10 2. TP304LND S30453 0.0 .00 0..16 .045 0. . 0.0 10..5 .8–4.00 16..0 .030 2. .0 10..030 2..2–4.00 0..10 0. .030 1..0–11..045 0... TP316LD S31603 0.21 2.00 24....05 0.00 24..0 .04–0.00 20. S31725 0. .0–20.00 24.0 . .0 10.0–16.08 2..060 0....08 2.30 TPXM-29 S24000 0..16 .00 0..030 1.045 0.00 0.0 2..0–16.030 0..030 0.8 0.00 .020 1.10 A249/A249M − 15a TP310HCb S31041 0.0–23.40 .00–2.25 ...045 0.0 . ...12 2.0 8. S31727 0.0–12.35–0..0–24. ..5–17..00 0.00 22.030 1.50–3.5 4.25 1.030 1.015 0.0–9.0 5..12–0.0 .03–0. S30615 0.2 0..40–2. ..20 0.0 8..0–5.5–13.0 2.5 0...3–3.0 3...030 1..5–10...0–26.5 1.. TP317 S31700 0..030 1.10–0.. .060 0.10–0...030 2..00 0.00–4.045 0...0 12.5–23.00 0.030 2.0 4.0 .045 0.00 ..0 12...030 1. .. . S31266 0.15–0.030 1. .0 20...0 11.50 0.. ...035 0..60 1...0 10. Composition.. ....25 0.060 0..0 19..0–13.14–0.08 2....08 TP304N S30451 0. .0–11..2–6.21–0.0 2.08 2..030 1.00 .00 0..5–18.00 18.015 0. 04–0.0 2.00 0.0 .0–37.0 .0–28.030 1.0–23.5–19.60 Ti 0. .0 32.50 0.020 0.00 0.0–38...0 30. . S32615 0.0 23..015 1.. .0–7..0–12.045 0.00 0.60 .08 2.020 2..0 0.045 0. 0.5 6..0 0. .00 17.00 0..0–19. .70 .0 21.0 0.015 1..10 TP347 S34700 0.045 0.030 0.10 TP347H S34709 0..15–0..00 0.0–25.. 0.50 ..0–12. 0..5–6.30–1.0 9..0 7... Ti 5(C+N)- 0.030 4.. ....5–25.0–19.040 0..0 ..75–1.00 Nb 8 × C min..60 Ti 0.030 2...00–3. .0–12..0 31.0–8.00 . .0 0...60 E Fe 39. Cb 0. . N08367 0. Ti 5(C+N)- 0.10 ..15–0..0–4.00 25.0 24.75 ..0–25. 1.00 17..70 TP321H S32109 0.0 0..0 . .0 32..0 9. .0–15.10 Ta 0.10 2.60–1.5 19.5 min 800H N08810 0.30 26. 0.030 0.0 15.00 0.06–0.50 17..00 0.030 1. 0.60 .00 23.045 0.00 0...60 Ti 0.60 FeE 39.10 1. S38815 0. (Cb+Ta) 10xC-1.030 1.0 0.0–35..00 0..10 Ta 0.. .0–29.00 17.20 ...0–5.10 2.50 0..030 1.030 0. 0.030 2.0 .10 Al0.10 TP348 S34800 0..0–19.00 17. S32053 0..040 0.10 1.80–6.030 1.0–333.010 1. TP321 S32100 0.0 4...015 1. .50–2..045 0. Cb 8xC- 1.015 0.00 0.0–6.04–0...0 9.50 24. S35045 0..5–18.5 13..0 9.50–2.08 2.30 max Alloy 20 N08020 0.08 2....030 1.045 0.00 0.00 max .10 . .030 0..0–17.0–19.00 20.030 1. .15–0.0 9.04–0.00 17.0 16.00 0.0 0..0 5.045 0.0–22..0–24.030 5...20 TP348H S34809 0.5 min .08 1.17–0.0 30.75 Al 0..0–18..15–0.05–0. Cb 10xC- 1.07 2.0–7. TABLE 1 Continued . .0 .75 Al 0.22 .0 0. to 1.0 .. Cb 0. . (Cb+Ta) 3 8xC-1..0–23.070 2..10 Co 0.10 Co 0..08 2.00–4.0 9...0 17... .005 0.0–35....0–12.0–12.010 1. S33228 0..50 Al 0.025 .030 1.50 .030 1.0–22.0 . 800 N08800 0.00 0.00 19. 3..045 0.045 0.020 5.00 19.25 0.10 2.45–0...0–12. .0–26.035 1..045 0..04–0.00 17.75–1. S34565 0.00 22..10 1.60 A249/A249M − 15a TPXM-15 S38100 0..5 .50 0...0–19.0–23.15–0.00 16..15–0..0 .00 Ce 0..00 19.05–0. ..75 Al 0.0–19.0 .045 0.50 ..55 0..30–0.0–21.18–0. S32654 0.0–19..40–0.. F A249/A249M − 15a (Al + Ti) = 0.20. C The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer.030 1.60F E Fe 39.50 0.15–0.25 0.0–23.00 0. [12..500 in.00 19.010 0.015 1.045 0. N08926 0.0–35.020 2.50 19.0–7.. 4 A Maximum.0–23.2 mm] in minimum wall thickness. N08904 0.85 to 1... [1.10 1.25–0. or both.50–1.. unless otherwise indicated.00 19.7 mm] in outside diameter and light wall are those less than 0.60F Ti 0..0 24.0 23. a carbon maximum of 0. Small outside diameter tubes are defined as those less than 0.. D For small diameter or thin walls..0 . ..5 min .05–0. E Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements.0 6. .00 . N08811 0...00 0..0 4.0–26. .049 in.00–2..75 Al 0..10 1.020 2.0–5.0–28.0–21.030 0.50 .0 0. B New designation established in accordance with Practice E527 and SAE J1086. where many drawing passes are required.0 30. 0. TABLE 1 Continued .25–0.040 0.0 0.040 % is necessary in Grades TP 304L and TP 316L. 1 The material shall conform to the tensile properties cold working. Product Analysis 3. Section VIII. treatment is in a batch-type furnace. made. a lot shall include all tubes of the same size and heat. retests of 3.1 Quantity (feet. specification. When cold drawn. Reverse-Bend Test Requirement 6. tube may be individually tested for acceptance. 10.2 A solution annealing temperature above 1950 °F [1065 shall then be opened and bent around a mandrel with a °C] may impair the resistance to intergranular corrosion after maximum thickness of four times the wall thickness.1. When final heat treatment is in a batch-type furnace. Section 7. the term lot applies to all tubes prior to cutting of the same nominal size and wall thickness 5.04 % or less.5 Length (specific or random). the tubes shall be cold worked either in both weld applies to all tubes prior to cutting.1. difficult to test the sample as a single piece. 6.1 An analysis of either one length of flat-rolled stock or 3. with the subsequent exposure to sensitizing conditions in TP309HCb. the metal. each length of flat-rolled stock or 4.1. The product analysis toler- 3. The weld shall be at the point of maximum TP348H. Specification A1016/A1016M). Heat Treatment 11.1. or number of lengths). 11. When final heat working may be specified by the purchaser. TP347H.3 N08020 shall be supplied in the stabilization treatment sectioned into smaller pieces provided a minimum of 4 in. latest 10.6 Optional requirements (13. The method of cold thickness which are produced from the same heat of steel. applying cold working of not less than 35 % reduction in both wall and weld to a welded tube prior to the final anneal. of the same nominal diameter and wall and base metal or in weld metal only. 8.1 The welded (WLD) tubes shall be made from flat-rolled size and from the same heat which are heat treated in the same furnace steel by an automatic welding process with no addition of filler charge.1. the weld shall be 100 % radiographically in. and surface of the tube.1 in Specifi- 3. Both retests for the elements in question shall meet the ments selected. Hardness Requirements revision. Division 1. ance is not applicable to the carbon content for material with a 3. Such requirements may include. [100 mm] minimum in length shall be split longitudinally 90° on each side of the weld. General Requirements the option of the producer. otherwise all remaining material in the heat or lot (See Note 1) shall be rejected or.1 The tubes shall have a Rockwell hardness number not exceeding the values specified in Table 4. at 4.1 Subsequent to welding and prior to final heat determined from the size of the tubes as prescribed in Table 3. TP348. unless otherwise provided the specification shall be rejected.1 It is the responsibility of the purchaser to specify all 7. metres. weld is subjected to reverse bending.1 All material shall be furnished in the heat-treated condition in accordance with the requirements of Table 2.2 Heavily cold worked (HCW) tubes shall be made by at the same temperature.1. TP321H. Tensile Requirements filler metal shall be used in the making of the weld. A249/A249M − 15a 3. a lot shall include only those tubes of the purchaser may specify the minimum amount of reduction in the same size and the same heat which are heat treated in the same furnace cross-sectional area or wall thickness. the sample may be 6. 3. or of overlaps stabilization or re-solution anneal shall be used subsequent to resulting from the reduction in thickness of the weld areas by the initial high temperature solution anneal (see Supplementary cold working.3 If the original test for product analysis fails.1. NOTE 2—For tension and hardness test requirements. and two additional lengths of flat-rolled stock or tubes shall be 3. a lot shall include only those tubes of the same 5. Lengths of form to the applicable requirements of the current edition of flat-rolled stock or tubes that do not meet the requirements of Specification A1016/A1016M. No 9.7 Test report required (see Certification Section of specified maximum carbon of 0. There shall be no evidence of cracks. spected in accordance with the requirements of ASME Boiler and Pressure Vessel Code. TP321. herein. the term lot treatment. time at heat. The sample 6. When specified by the purchaser.1. number of tubes of the same size and from the same heat in a lot shall be 5.1 A section 4 in.2 Name of material welded tubes (WLD) or heavily cold one tube shall be made for each heat. NOTE 1—For flattening and flange requirements.1. TP347. When the geometry or size of the tubing make it Requirement S4).1 Material furnished under this specification shall con.6). or both. Prior to 9. annealed in the same furnace 5. 8. 8. mandrel parallel to the weld and against the original outside TP310HCb. of condition.9 Special requirements and any supplementary require. requirements of the specification.2 A product analysis tolerance of Table A1.1 The heat analysis shall conform to the requirements as requirements that are necessary for material ordered under this to chemical composition given in Table 1.8 Specification designation.3 Grade (Table 1). a lower temperature bend. prescribed in Table 4. When the final heat treatment is in a continuous furnace. When the final heat treatment is in a continuous furnace. The chemical composi- worked tubes (HCW). Chemical Composition 3. the following: 8.4 Size (outside diameter and nominal wall thickness). cation A480/A480M shall apply. tion thus determined shall conform to the requirements given in 3. Ordering Information 7.1. 5 . Paragraph UW 51. Manufacture which are produced from the same heat of steel. charge. but are not limited to.1. and furnace speed. B Quenched in water or rapidly cooled by other methods. as demonstrated by the capability of passing Practices A262. A249/A249M − 15a TABLE 2 Heat Treatment Requirements Grade UNS Number Solutioning Temperature. a lower temperature stabilization or re-solution anneal shall be used subsequent to the higher-temperature solution anneal prescribed in this table (See Supplementary Requirement S4).8 mm] and over in outside not more than 50 tubes diameter and 0..134 in..1 The grain size of Grades TP309H. 0. or faster. at a rate sufficient to prevent reprecipitation of chromium carbides.. 12. S32654 2100 °F [1150 °C] B . [50... as determined in accordance with mens from each end of one finished tube. not the one used for Test Methods E112. N08811 2100 °F [1150 °C] B . C A solution treating temperature above 1950 °F [1065 °C] may impair resistance to intergranular corrosion after subsequent exposure to sensitizing conditions in the indicated grades... S35045 2000 °F [1100 °C] B .1 Tension Test—One tension test shall be made on a NOTE 3—The reverse bend test is not applicable when the specified wall specimen for lots of not more than 50 tubes.1 mm] in wall thickness 1 in.4 The grain size of N08810 and N08811. as determined in in wall thickness accordance with Test Methods E112. S31254 2100 °F [1150 °C] B .. 13.. Note that Practices A262 requires the test to be performed on sensitized specimens in the low carbon and stabilized types and on specimens representative of the as-shipped condition of the other types.. [25... 13..4 mm] in outside diameter and under in accordance with Test Methods E112. In the case of low-carbon types containing 3 % or more molybdenum. D Cooled in still air. The manufacturer is not required to run the test unless it is specified on the purchase order (See Supplementary Requirement S6). Practice E. not the one used 12. from each lot (See Note 1). shall be No. TABLE 3 Number of Tubes in a Lot Heat Treated by the 12..4 mm] or less in outside diameter not more than 125 13. N08904 2000 °F [1100 °C] B .2 Flattening Test—One flattening test shall be made on specimens from each end of one finished tube..3 The grain size of Grade UNS S32615. not more than 75 tubes [25. or the wall thickness is be made on specimens from two tubes for lots of more than 50 0.4 mm] or greater. [50.5 mm]. shall be 5 or coarser..3 Flange Test—One flange test shall be made on speci- TP310H and TP310HCb.. Continuous Process TP347H and TP348H. S32053 1975 °F [1080 °C]– B 2155 °F [1180 °C] TP321 S32100 1900 °F [1040 °C]C B TP321H S32109 2000 °F [1100 °C]C B B . N08926 2010 °F [1105 °C] A Quenched in water or rapidly cooled by other methods...4 mm] in outside diameter or over 1 in. 6 . [5. 7 or coarser.. TP316H. [9. S30601 2010 to 2140 °F [1100 to 1170 °C] B . S31727 1975 °F [1080 °C]– B 2155 °F [1180 °C] B .. Grain Size Requirement for the flange test. Tension tests shall is 10 % or more of the specified outside diameter. 6 or coarser. When specified by the purchaser. S30815 1920 °F [1050 °C] TP309HCb S30941 1900 °F [1040 °C]C B B TP310H S31009 1900 °F [1040 °C] TP310HCb S31041 1900 °F [1040 °C]C B B . Under these conditions the reverse flattening test of Specification A1016/A1016M shall apply.375 in.. as determined [25. the flattening test. [3. S33228 2050 °F [1120 °C] B ... 12. N08367 2025 °F [1110 °C] B 800 N08800 1900 °F [1040 °C] B 800H N08810 2050 °F [1120 °C] B ... the applicability of the sensitizing treatment prior to testing shall be a matter for negotiation between the seller and purchaser. shall be No. Mechanical Tests and Grain Size Determinations tubes Required 13. Less than 2 in.200 in. min or range Quenching Method A All grades not 1900 °F [1040 °C] individually listed below B .. from each lot (See Note 1).. S34565 2050 °F [1120 °C]– B 2140 °F [1170 °C] TP347 S34700 1900 °F [1040 °C]C B TP347H S34709 2000 °F [1100 °C]C B TP348 S34800 1900 °F [1040 °C]C B TP348H S34809 2000 °F [1100 °C]C B D .. TP309HCb. TP321H. 2 in..8 mm] but over 1 in.. S31266 2100 °F [1150 °C] B . as determined in accordance with Test Size of Tube Size of Lot Methods E112. 0. shall be No.200 in.2 The grain size of Grades TP304H. [5. S31277 2050 °F [1120 °C] B TP316H S31609 1900 °F [1040 °C] B . S38815 1950 °F [1065 °C] B Alloy 20 N08020 1700–1850 °F [925–1010 °C] stabilization treatment B .1 mm] and over 12. or the outside diameter size is less than tubes (See Note 2).. 3 or finer. .. [0.. 78 [540] 37 [255] 25 B95 . % max 13.. when A Not applicable to tubes less than 1⁄8 in.187 in. N08811 65 [450] 25 [170] 30 90 17. [0.2 are not applicable when any of TP316H S31609 75 [515] 30 [205] 35 B90 TP316N S31651 80 [550] 35 [240] 35 B90 the following apply: TP316LN S31653 75 [515] 30 [205] 35 B90 14. S30601 78 [540] 37 [255] 30 B100 on the same number of tubes as prescribed for the flattening .. .4 When the specified minimum yield strength given . S32050 98 [675] 48 [330] 40 14.2. The test is TP309HCb S30941 75 [515] 30 [205] 35 B90 not required unless S7 is specified in the purchase order.. 95 [655] 45 [300] 35 B100 14.. [MPa] [MPa] min..8 TP347H S34709 75 [515] 30 [205] 35 B90 TP348 S34800 75 [515] 30 [205] 35 B90 mm] in 3 ft (900 mm] of length.. or both.4 Reverse-Bend Test—One reverse-bend test shall be Grade UNS Tensile Yield Elongation Rockwell made on a specimen from each 1500 ft [450 m] of finished Designation Strength.1 Finished tubes shall have smooth ends free of burrs and TP347 S34700 75 [515] 30 [205] 35 B90 shall not deviate from straightness by more than 0..1 Dimensional tolerances other than wall thickness tol- t # 0. [76.90 to 1. TP310H and TP310HCb shall be made . N08904 71 [490] 31 [215] 35 B90 ...25 in... Number. [4.. t > 0. S30615 90 [620] 40 [275] 35 B95 test. or ....1 The tubes.. pickling or chemical descaling is not necessary.. 7 .. S31277 112 [770] 52 [360] 40 B100 of the specified wall thickness or 0. shall be able to stand expanding and wall thickness below 0. S35045 70 [485] 25 [170] 35 B90 16. Finish.. N08367 t # 0. shall be chemi- Alloy 20 N08020 80 [550] 35 [240] 30 B95 cally descaled or pickled free of scale. ..2 When the specified wall thickness exceeds 0. N08926 94 [650] 43 [295] 35 B100 and beading without showing cracks or flaws.. Workmanship..1.4 mm]. S31266 109 [750] 61 [420] 35 B100 ..7 Grain Size—Grain size determinations on grades TP305 S30500 75 [515] 30 [205] 35 B90 TP309H.2 mm]. The tensile properties of such beading without showing cracks and flaws. 98 [675] 45 [310] 35 B100 wall for all tubing sizes. S32053 93 [640] 43 [295] 40 B96 in Table 4 for the specified grade is 35 ksi [240 MPa] or greater.. S34565 115 [795] 60 [415] 35 B100 15. in 2 in. and Appearance .030 in. S32615 80 [550] 32 [220] 25 B100 . TP309HCb. TP348H S34809 75 [515] 30 [205] 35 B90 .187 in. ksi 50 mm.. When bright annealing . TP316L S31603 70 [485] 25 [170] 35 B90 14. Forming Operations .1. ksi min. and bending operations necessary for manufacturer and the purchaser.00 mm] t > 0.2 mm].2. welding..8 Heavily cold worked tubes (HCW) shall be capable of TP309S S30908 75 [515] 30 [205] 35 B90 TP309H S30909 75 [515] 30 [205] 35 B90 passing the weld decay test listed in Supplementary S7 with a TP309Cb S30940 75 [515] 30 [205] 35 B90 weld metal to base metal loss ratio of 0. and also shall stand small diameter or thin wall tubes shall be a matter of agreement between the all forging.2 The wall thickness of the weld shall not exceed the [5.2.2. application without developing defects. S31254: A1016M. S31050: 14. [5. or Hardness min.165 . TP304N S30451 80 [550] 35 [240] 35 B90 TP304LN S30453 75 [515] 30 [205] 35 B90 13. All tubes. S31725 75 [515] 30 [205] 35 B90 in. S31726 80 [550] 35 [240] 35 B90 .. S31727 80 [550] 36 [245] 35 B96 14. Wall thickness tolerances shall be 610 % of nominal t # 0. [0.187 95 [655] 45 [310] 30 B100 800 N08800 75 [515] 30 [205] 30 90 800H N08810 65 [450] 25 [170] 30 90 17.015 in.. after final heat treatment... S38815 78 [540] 37 [255] 30 B100 16..1...1 When the specified wall thickness exceeds 12 % of S31655 92 [635] 45 [310] 35 B100 the specified outside diameter.00 mm] wall thickness measured 90° from the weld by more than 6 % ....1. TP317 S31700 75 [515] 30 [205] 35 B90 TP317L S31703 75 [515] 30 [205] 35 B90 14..2. A249/A249M − 15a TABLE 4 Tensile and Hardness RequirementsA 13. TPXM-19 S20910 100 [690] 55 [380] 35 C25 TPXM-29 S24000 100 [690] 55 [380] 35 B100 13.. [3.2 mm] in outside diameter or having properly manipulated.6 Hydrostatic or Nondestructive Electric Test—Each TP304 S30400 75 [515] 30 [205] 35 B90 tube shall be subjected to either the hydrostatic or the nonde- TP304L S30403 70 [485] 25 [170] 35 B90 structive electric test.1 Requirements of 14. Surface Condition TPXM-15 S38100 75 [515] 30 [205] 35 B90 . Strength. S30415 87 [600] 42 [290] 35 B96 to be used. S30815 87 [600] 45 [310] 35 B95 13.25 in.10. which- TP316 S31600 75 [515] 30 [205] 35 B90 ever is greater.3 When the specified OD exceeds 3 in. tubing.1 Tubes when inserted in the boiler shall stand expanding .004 in. Permissible Variations in Dimensions TP310HCb S31041 75 [515] 30 [205] 35 B90 .5 Hardness Test—Brinell or Rockwell hardness tests TP201 S20100 95 [655] 38 [260] 35 B95 shall be made on specimens from two tubes from each lot (See TP 201LN S20153 95 [655] 45 [310] 45 B100 TP202 S20200 90 [620] 38 [260] 35 B95 Note 2)..1 mm]....187 100 [690] 45 [310] 30 B100 is used. TP310S S31008 75 [515] 30 [205] 35 B90 TP310H S31009 75 [515] 30 [205] 35 B90 TP310Cb S31040 75 [515] 30 [205] 35 B90 14. TP321 S32100 75 [515] 30 [205] 35 B90 TP321H S32109 75 [515] 30 [205] 35 B90 .. The purchaser may specify which test is TP304H S30409 75 [515] 30 [205] 35 B90 . S32654 109 [750] 62 [430] 35 B100 15. S33228 73 [500] 27 [185] 30 B90 . 84 [580] 39 [270] 25 B95 erances shall be in accordance with Specification A1016/ t > 0. or to initial solution annealing heat treatment. long samples shall be prepared 18. superheater tubes. 304-U. TP309H.4 Prepare the hydrochloric acid solution by slowly add- upon between the purchaser and vendor. high. It is not heat treatment at a temperature lower than that used for the recommended to test more than four samples together. TP321. Shorter. volume of the solution shall be approximately 700 mL. S1. the sample may be two separate pieces with one containing the weld and a similar size section from the balance S4. and N08811 shall also include the heat service applications. material shall pass intergranular cor- where stress corrosion may occur.5 The test container shall be a 1-L Erlenmeyer flask requirement of Section 12 shall not apply and the minimum equipped with ground-glass joints and an Ahlin condenser. Keywords 18. S1. Weld Decay Test between the purchaser and manufacturer. Minimum Wall Tubes content ≥ 19. Intergranular Corrosion Test S1.3 Straightness of the tubes shall be a matter of negotiation S7. TP310HCb.1 This test is not applicable to alloys with a nickel S2. it shall be identified along the weld area and at five locations along the base-metal with the suffix letter “U” (for example. Split the S3. No mechanical straightening is containing titanium or columbium.2 A stabilization heat treatment in accordance with given a heat treatment at 1550 to 1650 °F [845 to 900 °C] after Supplementary Requirement S4 may be necessary and is roll straightening. dust and grease by cleaning with soap and water or other TP347H. the tubing shall be marked S2. the straightness S7.) after final heat treatment (such as coils). specification.1 For use in certain corrosives. or order. samples may be used for small diameter (1⁄2-in. place sample(s) in the flask. take measurements at approximately 8 . and on the as-shipped condition for other grades. TP316H. TP310H. S7. stabilization heat treatment shall be at a temperature as agreed S7. Grades TP309HCb. TP347. etc. rosion tests conducted by the manufacturer in accordance with TP316L.1 In addition to the marking prescribed in Specification 19. The temperature of mix alloy types. and below) tubing. N08800.3 Approximately 2-in. Product Marking 19. the marking for Grades TP304H.6 Measure the thickness of the tube at five locations tion for unstraightened tubing appears. S2. the purchaser. worked (HCW) tubes SUPPLEMENTARY REQUIREMENTS The following supplementary requirements shall apply only when specified by the purchaser in the inquiry. The sample may be one piece which contains the weld (either air under water or pneumatic leak test) in accordance and at least 90° of base-metal to one side of the weld. one sample nished on a minimum wall basis. TP321H. S7. NOTE S6. particularly in their H permitted after the stress-relief treatment.). N08810. S5. boiler tubes. S4. TP321.00 %. TP347. section. The yield strength of Table 3 shall be reduced by 5 ksi [35 MPa]. A249/A249M − 15a 18.1 When specified by the purchaser. and TP348 may be specified in the Practices A262. high temperature applications.1 When the purchaser specifies tubes unstraightened done under a hood and testing shall be run under a hood.1—Practice E requires testing on the sensitized condition for tal requirements shall be agreed upon by the manufacturer and low carbon or stabilized grades.2 When stress-relieved tubes are specified. 1-in. Practice E. condenser tube. N08810.2 On the certification. 321-U. TP321H. steel tube. S7. Alternately. contract. ing reagent grade (approximately 37 %) hydrochloric acid to an equal volume of distilled water. S1. with Specification A1016/A1016M. Such tubes shall satisfy the from each lot of tubing (See Note 2) shall be subjected to minimum wall thickness requirements of Specification A1016/ testing in a boiling mixture of 50 % reagent grade hydrochloric A1016M rather than the nominal wall requirements of this acid and 50 % water. tubes shall be S6. Unstraightened Tubes and use rubber gloves when handling acid. (Warning—Protect eyes S5.1 Subsequent to the solution anneal required in Section Remove all burrs and sharp edges by lightly grinding. Stress-Relieved Annealed Tubes S6. particularly chlorides S6. In addition to the marking required by Section S7. tubes in Grades TP304L. TP347H. TP309HCb. versions. welded steel tube and heavily cold number and the heat-treatment lot identification. temperature TP348H. and TP348H shall be given a stabilization suitable solvents.2 When specified by the purchase order. and wherever the grade designa. A1016/A1016M. stress-relieved annealed condition. Mixing shall be S5. Stabilizing Heat Treatment of the tube opposite the weld consisting of 100 % base metal. heat exchanger tube.1 When specified. Cooling from this temperature range may be permitted in order to meet this requirement for the grades either in air or by slow cooling. Pneumatic Test sample longitudinally to allow for easy micrometer measure- S3. TP310HCb. In both cases. TP348. or both. Remove 6. Details of these supplemen.1 The tubing shall be examined by a pneumatic test ments. Then. N08811. tubes shall be fur. from a production length of tubing.0 % or a molybdenum content ≥ 4.1 austenitic stainless steel. Did not need to add to the heat treatment table as the grade will be covered by “grades not listed below. “S9” shall be added after the grade designa- W = average weld-metal thickness after the test. and Table 4.1 A corrosion ratio of 1.3 The test methods described in the supplement may not be capable of inspecting the end portions of tubes.1 For special applications. R. Allow the chips to remain boiling of tubes into tube sheets. rinse with distilled water. A249/A249M–15. 2014) (1) Addition of alloy S31266 to Table 1. 100 % joint efficiency for longitudinal weld. the weld as follows in Eq 1: S9. Bo = average base-metal thickness before the test.015 in.1. remove the samples from order. The S9. criteria referenced in Specification A1016/A1016M.1—When specified. thickness (usually 2 h or less). and dry.1. applications.1 Each tube shall be subjected to an ultrasonic inspec- uniform across the width of the weld. Additional Testing of Welded Tubing per ASME Re- base-metal thickness remains. Table 2. (3) Added 6. 2015) (1) Added N08020 to Table 1. The micrometer must be suitable for of 1. Typical pin micrometers have tapered anvils with a tip radius S8. (2) Addition of alloy S30601 to Table 1. there shall be no dimensional throughout the test. It is not mandatory for all ASME B = average base-metal thickness after the test.4 In addition to the marking prescribed in Specification Wo = average weld-metal thickness before the test. producer and the purchaser. (Approved October 1.8 At the end of the test period. A1016/A1016M. The time of testing shall be that which is indication of the weld. performed using one of the nondestructive electric tests per- S7. Table 2. A249/A249M − 15a equal longitudinal intervals along the section lengths. This Wo 2 W R5 (1) condition is referred to as end effect. shall be removed and discarded.9 After exposure to the test solution.10 Calculate the corrosion ratio. ments is to be taken along the centerline of the weld. provided the S7.” Committee A01 has identified the location of selected changes to this specification since the last issue.00 or less. tion.2 If Practice E273 is employed. (Approved September 1. If the thinning is not S9. If more than 60 % of the S9.7 Immerse the samples into the solution. A249/A249M–14. One set of measure. This portion. in certain ASME applications it is permissible to use the solution. repeat the tube. Committee A01 has identified the location of selected changes to this specification since the last issue. A249/A249M–14a. When this supplement is specified in the purchase S7. Make S7. Add boiling S8. the special testing in this supplement is intended for special ASME applications.1. may be specified upon agreement between the measuring the small features in the surface after testing.3. such as a ratio to at least 0.6. that may impact the use of this specification.1.001 in. where: S9. Special Applications of less than 0. and Table 4. (2) Modified Note A in Table 2. a 100 % volumetric second set of measurements is to be taken in the thinnest area inspection of the entire length of each tube shall also be of the weld.25 or less for the thinnest these measurements with a sharp pointed micrometer accurate section of the weld is permissible. S7. then two sets of tion employing Practices E273 or E213 with the rejection weld-metal measurement are required. for both sections of mitted by Specification A1016/A1016M. Other criteria. 9 . such as hydraulic expansion chips and bring to a boil. 2015) (1) Added UNS S31655 to Tables 1 and 4.10.1) after 24 h. and NOTE S9.1. Table 2. following additional requirements are met: thickness measurement as in S7. Tubes ordered to this requirement shall required to remove 40 to 60 % of the original base-metal bear the additional marking of NB. (Approved December 1. and Table 4. as deter- Bo 2 B mined by the manufacturer. that may impact the use of this specification. S9. the sample may be removed quest (see Note S9. SUMMARY OF CHANGES Committee A01 has identified the location of selected changes to this specification since the last issue. that may impact the use of this specification. United States. or service@astm. A249/A249M − 15a ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.copyright. West Conshohocken. Tel: (978) 646-2600. This standard is copyrighted by ASTM International. or through the ASTM website (www. MA 01923. Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center. 610-832-9555 (fax). 100 Barr Harbor Drive. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised. and the risk of infringement of such rights. http://www. 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