1、Designation: A511/A511M 15aA511/A511M 16Standard Specification forSeamless Stainless Steel Mechanical Tubing and HollowBar1This 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 revisi
2、on, 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*1.1 This specificat
3、ion covers seamless stainless tubing for use in mechanical applications or as hollow bar for use in theproduction of hollow components such as, but not limited to nozzles, reducers, and couplings by machining wherecorrosion-resistant or high-temperature strength is needed. The grades covered are lis
4、ted in Table 1, Table 2, and Table 3.1.2 This specification covers seamless cold-finished mechanical tubing and hollow bar and seamless hot-finished mechanicaltubing and hollow bar in sizes up to 1234 in. 325 mm in outside nominal diameter (for round tubing) with wall thicknesses orinside diameters
5、as required.1.3 Tubes for mechanical applications shall be furnished in one of the following shapes, as specified by the purchaser: round,square, rectangular, or special. Tubes to be used as hollow bar shall be furnished in round shape.1.4 Optional supplementary requirements are provided and when de
6、sired, 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 theother.2. R
7、eferenced 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, Austenitic
8、Alloy Steel, and Stainless SteelTubesE59A1058 Practice for Sampling Steel and Iron for Determination of Chemical CompositionTest Methods for MechanicalTesting of Steel ProductsMetric (Withdrawn 1996)E112 Test Methods for Determining Average Grain Size2.2 Military Standards:MIL-STD-129 Marking for Sh
9、ipment and Storage3MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage32.3 Federal Standard:Fed. Std. No. 123 Marking for Shipments (Civil Agencies)33. Terminology3.1 Definitions:3.1.1 hollow barround tubing that is intended to produce engineering components by machining, generally
10、specified byminimum outside diameter and maximum inside diameter.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 approv
11、ed May 1, 2015May 1, 2016. Published May 2015May 2016. Originally approved in 1964. Last previous edition approved in 2015 asA511/A511MA511/A511M 15a.15. DOI: 10.1520/A0511_A0511M-15A.10.1520/A0511_A0511M-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer
12、 Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.This document is not
13、 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 changes accurately, ASTM recommends that users consult prior editions as appropriate
14、. 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 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TAB
15、LE 1 Chemical Requirements of Austenitic Stainless SteelsGradeComposition, %Carbon Manga-nese, maxPhos-pho-rus,maxSul-fur,maxSilicon,max Nickel Chromium Molybdenum TitaniumColumbiumNiobiumD 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 ma
16、x 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 . . . 0.120.2 . .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.
17、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 1.00 10.015.0 16.018.0 2.03.0
18、. . . . .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 . 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
19、.00 . . Cu 3.004.00N08367 0.030 max 2.00 0.040 0.030 1.00 23.525.5 20.022.0 6.007.00 . . . . 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 0.150.6
20、0Cu 0.75N08811 0.060.10 1.50 0.045 0.015 1.00 30.035.0 19.023.0 . 0.250.60C . . 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.
21、020 max 2.00 0.030 0.010 0.50 24.026.0 19.021.0 6.07.0 . . . . N 0.150.25Cu 0.401.50AFor 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
22、a 0.500 in. 12.7 mm outside diameter and light-wall tubes as those under a 0.049 in. 1.2 mm average wall thickness (0.044 in. 1.1 mm min wall thickness).BIron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements.CThe range of (Al + Ti) shall be within
23、 0.851.20 %.DThe terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.A511/A511M1623.1.2 mechanical tubingtubing of various shapes used for mechanical and general engineering purposes, specified by nominaloutside dimension and nominal wall.4. Ordering Information4.1 Orders
24、for material under this specification should include the following as required to describe the desired materialadequately:4.1.1 Quantity (feet, mass, or number of pieces),4.1.2 Name of material (seamless stainless steel mechanical tubing), tubing or hollow bar),4.1.3 Mechanical Tubing Form only (rou
25、nd, square, rectangular, special, see Section 1),4.1.4 Dimensions (round, nominal outside diameter and nominal wall thickness, see Section(see 11.1 9;and 11.2) or minimumoutside diameter and maximum inside diameter (see 11.3); square and rectangular, nominal outside dimensions and nominal wallthickn
26、ess, see Section 1012; other, specify),4.1.5 Length (specific or random, see 9.311.4),4.1.6 Manufacture (cold- or hot-finished, see 4.56.5),4.1.7 Grade (Section 68),4.1.8 Condition (annealed, as cold worked, or with special heat treatment, controlled microstructural characteristics, or otherconditio
27、n as required, see Section 57),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 ma
28、x 11.513.0 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.
29、040 0.030 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 . . 0.90
30、1.25 . .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 0.02
31、0 maxB .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 Si
32、licon, max Nickel Chromium Molybdenum Nitrogen Copper OthersCarbon Manganese,maxPhosphorus,maxSulfur, max Silicon, max Nickel Chromium Molybdenum Nitrogen Copper OtherElementsS31260 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
33、.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 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 5.5
34、7.2 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 .S32550 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 .S32707 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
35、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 1.502.60 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
36、 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 indicated. Where ellipses () appear in this table, there is no requirement and analysis for the element need
37、not be determinedor reported.B% Cr + 3.3 X % Mo + 16X % N $ 40.A511/A511M 1634.1.9 Surface finish (special pickling, shot blasting, or polishing, as required, see Supplementary Requirement S5),4.1.10 Specification designation,4.1.11 Report of Chemical Analysis, if required (Sections 79 and 810),4.1.
38、12 Individual supplementary requirements, if required,NOTE 1Supplementary requirements S1 and S2 are required for hollow bar only (see Section 13).4.1.13 End use,4.1.14 Packaging,4.1.15 Special marking (see 15.218.2),4.1.16 Special packing (see 16.219.2), and4.1.17 Special requirements.5. General Re
39、quirements5.1 Material furnished under this specification shall conform to the applicable requirements of the current edition ofSpecification A1016/A1016M unless otherwise provided herein.6. Materials and Manufacture6.1 The steel may be made by any process.6.2 If a specific type of melting is requir
40、ed by the purchaser, it shall be as stated on the purchase order.6.3 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 o
41、f the ingotsremelted from a single primary heat.6.4 Steel may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identificationof the resultant transition material is required. The producer shall remove the transition material by an established proce
42、dure thatpositively separates the grades.6.5 The tubes shall be made by a seamless process and by either cold working or hot working as specified. Seamless steel tubingis a tubular product made without a welded seam. It is usually manufactured by hot working steel and then cold finishing thehot-work
43、ed tubing to produce the desired shape, dimensions, and properties.7. Condition7.1 Round seamless stainless mechanical tubing is generally supplied in the cold-worked and annealed condition (see 5.27.2through 5.57.5). Square, rectangular, or other shapes of tubing are generally supplied annealed pri
44、or to final cold shaping. If someother condition is desired, details shall be included in the order. Round seamless hollow bar is generally applied in the hot-workedand annealed condition.7.2 The thermal treatment for ferritic and martensitic steels shall be performed by a method and at a temperatur
45、e selected bythe manufacturer unless otherwise specified by the purchaser.7.3 Unless otherwise specified, all austenitic tubes mechanical tubing and hollow bar, except for UNS N08020 shall befurnished in the solution annealed condition. Unless otherwise specified in Table 4, the solution anneal shal
46、l consist of heating thematerial to a minimum temperature of 1900 F 1040 C and quenching in water or rapidly cooling by other means.Alternatively,immediately following hot forming while the temperature of the tubes mechanical tubing or hollow bar is not less than the specifiedminimum solution treatm
47、ent temperature, tubes may be individually quenched in water or rapidly cooled by other means. Thissolution anneal shall precede final cold work, when cold-worked tempers are required. UNS N08020 shall be furnished in thestabilized annealed condition.TABLE 4 Heat Treatment of Austenitic Stainless St
48、eelsGrade Temperature F C QuenchN08020 17001850 9251010A,B quenched in water or rapidly cooled by other meansN08367 2025 1105A quenched in water or rapidly cooled by other meansN08810 2050 1120A quenched in water or rapidly cooled by other meansN08811 2100 1150A quenched in water or rapidly cooled b
49、y other meansN08904 2000 1100A quenched in water or rapidly cooled by other meansN08925 20102100 11001150A quenched in water or rapidly cooled by other meansN08926 20102100 11001150A quenched in water or rapidly cooled by other meansAQuenched in water or rapidly cooled by other means, at a rate sufficient to prevent re-precipitation of carbides, as demonstrable by the
