1、Designation: A511/A511M 12A511/A511M 15Standard Specification forSeamless Stainless Steel Mechanical Tubing1This standard is issued under the fixed designation A511/A511M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of
2、 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*1.1 This specification covers seam
3、less stainless tubing for use in mechanical applications where corrosion-resistant orhigh-temperature strength is needed. The grades covered are listed in Table 1, Table 2, and Table 3.1.2 This specification covers seamless cold-finished mechanical tubing and seamless hot-finished mechanical tubing
4、in sizes upto 1234 in. 325 mm in outside nominal diameter (for round tubing) with wall thicknesses as required.1.3 Tubes shall be furnished in one of the following shapes, as specified by the purchaser: round, square, rectangular, or special.1.4 Optional supplementary requirements are provided and w
5、hen desired, shall be stated in the order.1.5 The values stated in inch-pound units are to be regarded as the standard. Within the text, the SI units are shown in squarebrackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of theothe
6、r.2. Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless SteelsA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Auste
7、nitic Alloy Steel, and Stainless SteelTubesE59 Practice for Sampling Steel and Iron for Determination of Chemical Composition (Withdrawn 1996)32.2 Military Standards:MIL-STD-129 Marking for Shipment and Storage4MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage42.3 Federal Standard
8、:Fed. Std. No. 123 Marking for Shipments (Civil Agencies)43. Ordering Information3.1 Orders for material under this specification should include the following as required to describe the desired materialadequately:3.1.1 Quantity (feet, mass, or number of pieces),3.1.2 Name of material (seamless stai
9、nless steel mechanical tubing),3.1.3 Form (round, square, rectangular, special, see Section 1),3.1.4 Dimensions (round, outside diameter and wall thickness, see Section 9; square and rectangular, outside dimensions andwall thickness, see Section 10; other, specify),3.1.5 Length (specific or random,
10、see 9.3),3.1.6 Manufacture (cold- or hot-finished, see 4.5),1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.10on Stainless and Alloy Steel Tubular Products.Current edition approved Ma
11、rch 1, 2012Jan. 1, 2015. Published April 2012January 2015. Originally approved in 1964. Last previous edition approved in 20112012 asA511/A511M11.12. DOI: 10.1520/A0511_A0511M-12.10.1520/A0511_A0511M-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Serv
12、ice at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from Standardization Documents Order Desk, Bldg. 4 Section D
13、, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all cha
14、nges accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Ba
15、rr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE 1 Chemical Requirements of Austenitic Stainless SteelsGradeComposition, %Carbon Manga-nese, maxPhos-pho-rus,maxSul-fur,maxSilicon,max Nickel Chromium Molybdenum TitaniumColumbiumplusTantalumSeleniumMT 302 0.08 to 0.2
16、0 2.00 0.040 0.030 1.00 8.010.0 17.019.0 . . . .MT 303 0.15 max 2.00 0.20 0.15 min 1.00 8.010.0 17.019.0 . . . .MT 303Se 0.15 max 2.00 0.040 0.040 1.00 8.011.0 17.019.0 . . . 0.120.2MT 304 0.08 max 2.00 0.040 0.030 1.00 8.011.0 18.020.0 . . . .MT 304L 0.035 maxA 2.00 0.040 0.030 1.00 8.013.0 18.020.
17、0 . . . .MT 305 0.12 2.00 0.040 0.030 1.00 10.013.0 17.019.0 . . . .MT 309S 0.08 max 2.00 0.040 0.030 1.00 12.015.0 22.024.0 . . . .MT 310S 0.08 max 2.00 0.040 0.030 1.00 19.022.0 24.026.0 . . . .MT 316 0.08 max 2.00 0.040 0.030 1.00 11.014.0 16.018.0 2.03.0 . . .MT 316L 0.035 maxA 2.00 0.040 0.030
18、1.00 10.015.0 16.018.0 2.03.0 . . .MT 317 0.08 max 2.00 0.040 0.030 1.00 11.014.0 18.020.0 3.04.0 . . .MT 321 0.08 max 2.00 0.040 0.030 1.00 9.013.0 17.020.0 . B . .MT 347 0.08 max 2.00 0.040 0.030 1.00 9.013.0 17.020.0 . . C .TABLE 1 Chemical Requirements of Austenitic Stainless SteelsGradeComposit
19、ion, %Carbon Manga-nese, maxPhos-pho-rus,maxSul-fur,maxSilicon,max Nickel Chromium Molybdenum Titanium Columbium Selenium IronOtherElementsMT 302 0.08 to 0.20 2.00 0.040 0.030 1.00 8.010.0 17.019.0 . . . . . .MT 303 0.15 max 2.00 0.20 0.15 min 1.00 8.010.0 17.019.0 . . . . . .MT 303Se 0.15 max 2.00
20、0.040 0.040 1.00 8.011.0 17.019.0 . . . 0.120.2 . .MT 304 0.08 max 2.00 0.040 0.030 1.00 8.011.0 18.020.0 . . . . . .MT 304L 0.035 maxA 2.00 0.040 0.030 1.00 8.013.0 18.020.0 . . . . . .MT 305 0.12 2.00 0.040 0.030 1.00 10.013.0 17.019.0 . . . . . .MT 309S 0.08 max 2.00 0.040 0.030 1.00 12.015.0 22.
21、024.0 . . . . . .MT 310S 0.08 max 2.00 0.040 0.030 1.00 19.022.0 24.026.0 . . . . . .MT 316 0.08 max 2.00 0.040 0.030 1.00 11.014.0 16.018.0 2.03.0 . . . . .MT 316L 0.035 maxA 2.00 0.040 0.030 1.00 10.015.0 16.018.0 2.03.0 . . . . .MT 317 0.08 max 2.00 0.040 0.030 1.00 11.014.0 18.020.0 3.04.0 . . .
22、 . .MT 321 0.08 max 2.00 0.040 0.030 1.00 9.013.0 17.020.0 . 5XC 0.60. . . .MT 347 0.08 max 2.00 0.040 0.030 1.00 9.013.0 17.020.0 . . 10XC 1.00 . . .N08020 0.070 max 2.00 0.045 0.035 1.00 32.038.0 19.021.0 2.003.00 . 8XC 1.00 . . Cu 3.004.00N08367 0.030 max 2.00 0.040 0.030 1.00 23.525.5 20.022.0 6
23、.007.00 . . . . N 0.180.25Cu 0.75N08800 0.10 max 1.50 0.045 0.015 1.00 30.035.0 19.023.0 . 0.150.60 . . 39.5 minB Al 0.150.60Cu 0.75N08810 0.050.10 1.50 0.045 0.015 1.00 30.035.0 19.023.0 . 0.150.60 . . 39.5 minB Al 0.150.60Cu 0.75N08811 0.060.10 1.50 0.045 0.015 1.00 30.035.0 19.023.0 . 0.250.60C .
24、 . 39.5 minB Al 0.250.60CCu 0.75N08904 0.020 max 2.00 0.040 0.030 1.00 23.028.0 19.023.0 4.05.0 . . . . N 0.10Cu 1.002.00N08925 0.020 max 1.00 0.045 0.030 0.50 24.026.0 19.021.0 6.07.0 . . . . N 0.100.20Cu 0.801.50N08926 0.020 max 2.00 0.030 0.010 0.50 24.026.0 19.021.0 6.07.0 . . . . N 0.150.25Cu 0
25、.401.50AFor small diameter or thin wall tubing or both, where many drawing passes are required, a maximum of 0.040 % carbon is necessary in grades MT-304L and MT-316L. Small outside diameter tubes are defined as thoseunder a 0.500 in. 12.7 mm outside diameter and light-wall tubes as those under a 0.
26、049 in. 1.2 mm average wall thickness (0.044 in. 1.1 mm min wall thickness).BThe titanium content shall be not less than five times the carbon content and not more than 0.60 %. Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements.A511/A511M152CTh
27、e columbium plus tantalum content shall be not less than ten times the carbon content and not more than 1.00 %.range of (Al + Ti) shall be within 0.851.20 %.A511/A511M1533.1.7 Grade (Section 6),3.1.8 Condition (annealed, as cold worked, or with special heat treatment, controlled microstructural char
28、acteristics, or othercondition as required, see Section 5),3.1.9 Surface finish (special pickling, shot blasting, or polishing, as required, see Supplementary Requirement S5),3.1.10 Specification designation,3.1.11 Report of Chemical Analysis, if required (Sections 7 and 8),3.1.12 Individual supplem
29、entary requirements, if required,3.1.13 End use,3.1.14 Packaging,3.1.15 Special marking (see 15.2),3.1.16 Special packing (see 16.2), and3.1.17 Special requirements.4. Materials and Manufacture4.1 The steel may be made by any process.4.2 If a specific type of melting is required by the purchaser, it
30、 shall be as stated on the purchase order.4.3 The primary melting may incorporate separate degassing or refining and may be followed by secondary melting, such aselectroslag remelting or vacuum-arc remelting. If secondary melting is employed, the heat shall be defined as all of the ingotsremelted fr
31、om a single primary heat.TABLE 2 Chemical Requirements of Ferritic and Martensitic Stainless SteelsGradeComposition, %Carbon, maxManga-nese,maxPhos-phorus,maxSulfur,max Silicon,max Nickel Chromium Molyb-denum Aluminum Copper Nitrogen SeleniumMartensiticMT 403 0.15 1.00 0.040 0.030 0.50 0.50 max 11.5
32、13.0 0.60 maxMT 410 0.15 1.00 0.040 0.030 1.00 0.50 max 11.513.5 . . . . .MT 414 0.15 1.00 0.040 0.030 1.00 1.252.50 11.513.5 . . . . .MT 416Se 0.15 1.25 0.060 0.060 1.00 0.50 max 12.014.0 . . . . 0.120.20MT 431 0.20 1.00 0.040 0.030 1.00 1.252.50 15.017.0 . . . . .MT 440A 0.60 to 0.75 1.00 0.040 0.
33、030 1.00 . 16.018.0 0.75 max . . . .FerriticMT 405 0.08 1.00 0.040 0.030 1.00 0.50 max 11.514.5 . 0.100.30 . . .MT 429 0.12 1.00 0.040 0.030 1.00 0.50 max 14.016.0 . . . . .MT 430 0.12 1.00 0.040 0.030 1.00 0.50 max 16.018.0 . . . . .MT 443 0.20 1.00 0.040 0.030 1.00 0.50 max 18.023.0 . . 0.901.25 .
34、 .MT 4461 0.20 1.50 0.040 0.030 1.00 0.50 max 23.030.0 . . . 0.25 max .MT 4462A 0.12 1.50 0.040 0.030 1.00 0.50 max 23.030.0 . . . 0.25 max .29-4 0.010 0.30 0.025 0.020 0.20 0.15 max 28.030.0 3.54.2 . 0.15 max 0.020 max .29-4-2 0.010 0.30 0.025 0.020 0.20 2.02.5 28.030.0 3.54.2 . 0.15 max 0.020 maxB
35、 .AMT446-2 is a lower carbon version of MT446-1, that has a lower tensile strength but improved ductility and toughness.BCarbon plus nitrogen = 0.025 max %.TABLE 3 Chemical Requirements of Austenitic-Ferritic Stainless SteelsAGrade Composition, %Carbon Manganese,maxPhosphorus,maxSulfur, max Silicon,
36、 max Nickel Chromium Molybdenum Nitrogen Copper OthersS31260 0.030 1.00 0.030 0.030 0.75 5.57.5 24.026.0 2.53.5 0.100.30 0.200.80 W 0.100.50S31803 0.030 2.00 0.030 0.020 1.00 4.56.5 21.023.0 2.53.5 0.080.20 . .S32101 0.040 4.06.0 0.040 0.030 1.00 1.351.70 21.022.0 0.100.80 0.200.25 0.100.80 .S32205
37、0.030 2.00 0.030 0.020 1.00 4.56.5 22.023.0 3.03.5 0.140.20 . S32304 0.030 2.50 0.040 0.040 1.00 3.05.5 21.524.5 0.050.60 0.050.20 0.050.60 .S32506 0.030 1.00 0.040 0.015 0.90 5.57.2 24.026.0 3.03.5 0.080.20 . W 0.050.30S32550 0.040 1.50 0.040 0.030 1.00 4.56.5 24.027.0 2.93.9. 0.100.25 1.502.50 .S3
38、2707 0.030 1.50 0.035 0.010 0.50 5.59.5 26.029.0 4.05.0 0.300.50 1.0 Co 0.52.0S32750 0.030 1.20 0.035 0.020 0.80 6.08.0 24.026.0 3.05.0 0.240.32 0.50 .S32760B 0.05 1.00 0.030 0.010 1.00 6.08.0 24.026.0 3.04.0 0.200.30 0.501.00 W 0.501.00S32906 0.030 0.80-1.50 0.030 0.030 0.80 5.87.5 28.030.0 1.502.6
39、0 0.300.40 0.80 .S32808 0.030 1.10 0.030 0.010 0.50 7.08.2 27.027.9 0.801.20 0.300.40 W 2.102.50S32950 0.030 2.00 0.035 0.010 0.60 3.55.2 26.029.0 1.002.50 0.150.35 . .S39274 0.030 1.00 0.030 0.020 0.80 6.08.0 24.026.0 2.53.5 0.240.32 0.200.80 W 1.502.50AMaximum, unless a range or minimum is indicat
40、ed. Where ellipses () appear in this table, there is no requirement and analysis for the element need not be determinedor reported.B% Cr + 3.3 X % Mo + 16X % N $ 40.A511/A511M 1544.4 Steel may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identi
41、ficationof the resultant transition material is required. The producer shall remove the transition material by an established procedure thatpositively separates the grades.4.5 The tubes shall be made by a seamless process and by either cold working or hot working as specified. Seamless steel tubingi
42、s a tubular product made without a welded seam. It is usually manufactured by hot working steel and then cold finishing thehot-worked tubing to produce the desired shape, dimensions, and properties.5. Condition5.1 Round seamless stainless mechanical tubing is generally supplied in the cold-worked an
43、d annealed condition (see 5.2through 5.5). Square, rectangular, or other shapes of tubing are generally supplied annealed prior to final cold shaping. If someother condition is desired, details shall be included in the order.5.2 The thermal treatment for ferritic and martensitic steels shall be perf
44、ormed by a method and at a temperature selected bythe manufacturer unless otherwise specified by the purchaser.5.3 Unless otherwise specified, all austenitic tubes shall be furnished in the annealed condition. The Unless otherwise specifiedin Table 4, the anneal shall consist of heating the material
45、 to a minimum temperature of 1900 F 1040 C and quenching in wateror rapidly cooling by other means. Alternatively, immediately following hot forming while the temperature of the tubes is not lessthan the specified minimum solution treatment temperature, tubes may be individually quenched in water or
46、 rapidly cooled by othermeans. This anneal shall precede final cold work, when cold-worked tempers are required.5.4 All austenitic-ferritic tubes shall be furnished in the annealed condition as prescribed in Table 45.Alternatively, immediatelyfollowing hot forming, while the temperature of the tubes
47、 is not less than the specified minimum solution treatment temperature,tubes may be individually quenched in water or rapidly cooled by other means.5.5 If any controlled microstructural characteristics are required, these shall be specified so as to be a guide to the most suitableheat treatment.6. C
48、hemical Composition6.1 The steel shall conform to the requirements as to chemical composition prescribed in Table 1, Table 2, or Table 3. Othergrades are available.7. Heat Analysis7.1 An analysis of each heat of steel shall be made by the steel manufacturer to determine the percentages of the elemen
49、tsspecified. If secondary melting processes are employed, the heat analysis shall be obtained from one remelted ingot or the productof one remelted ingot of each primary melt. The chemical composition thus determined, or that determined from a product analysismade by the tubular product manufacturer, shall be reported to the purchaser or the purchasers representative an
