1、Designation: A 276 08aStandard Specification forStainless Steel Bars and Shapes1This standard is issued under the fixed designation A 276; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in paren
2、theses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers hot-finished or cold-finishedbars except b
3、ars for reforging (Note 1). It includes rounds,squares, and hexagons, and hot-rolled or extruded shapes, suchas angles, tees, and channels in the more commonly used typesof stainless steels. The free-machining types (Note 2) forgeneral corrosion resistance and high-temperature service arecovered in
4、a separate specification.NOTE 1For bars for reforging, see Specification A 314.NOTE 2For free-machining stainless bars designed especially foroptimum machinability, see Specification A 582/A 582M.NOTE 3There are standards covering high nickel, chromium, austen-itic corrosion, and heat resisting allo
5、y materials. These standards are underthe jurisdiction of ASTM Subcommittee B02.07 and may be found inAnnual Book of ASTM Standards, Vol. 02.04.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are pr
6、ovided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2A 314 Specification for Stainless Steel Billets and Bars forForgingA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 484/A 484M Specification for General Requirements forSt
7、ainless Steel Bars, Billets, and ForgingsA 582/A 582M Specification for Free-Machining StainlessSteel BarsA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsE 527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.2 SAE Document:3SAE J 10
8、86 Recommended Practice for Numbering Metalsand Alloys3. Ordering Information3.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Such requirements may include but are notlimited to the following:3.1.1 Quantity (wei
9、ght or number of pieces),3.1.2 Name of material: stainless steel,3.1.3 Form (bars, angles, etc.),3.1.4 Condition (Section 4.1),3.1.5 Finish (Section 8 of Specification A 484/A 484M),3.1.6 Surface preparation of shapes (Section 8 of Specifica-tion A 484/A 484M),3.1.7 Applicable dimensions including s
10、ize, thickness,width, and length, l.3.1.8 Cross section (round, square, etc.),3.1.9 Type or UNS designation (Table 1),3.1.10 ASTM designation and date of issue, and3.1.11 Whether bars are to be rolled as bars or cut from stripor plate.3.1.12 Test for magnetic permeability when specified bycustomer p
11、urchase order when ordering Types 201 and 205.3.1.13 Special requirements.NOTE 4Atypical ordering description is as follows: 5000 lb (2268 kg)Stainless Steel Bars, Annealed and Centerless Ground, 112 in. (38.10mm) Round, 10 to 12 ft (3.05 to 3.66 m) in length, Type 304, ASTMSpecification A 276 dated
12、 _. End use: machined valve parts.4. Manufacture4.1 Condition:4.1.1 Bars shall be furnished in one of the followingconditions listed in the Mechanical Requirements table:4.1.1.1 Condition AAnnealed4.1.1.2 Condition HHardened and tempered at a rela-tively low temperature4.1.1.3 Condition THardened an
13、d tempered at a relativelyhigh temperature1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved Oct. 1, 2008. Published
14、 October 2008. Originallyapproved in 1944. Last previous edition approved in 2008 as A 276 08.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document
15、 Summary page onthe ASTM website.3Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoho
16、cken, PA 19428-2959, United States.TABLE 1 Chemical RequirementsAUNSDesigna-tionBTypeComposition, %Carbon ManganesePhos-phorusSulfur Silicon Chromium NickelMolyb-denumNitrogen Other ElementsAustenitic GradesN08367 . . . 0.030 2.00 0.040 0.030 1.00 20.022.0 23.525.5 6.07.0 0.180.25 Cu 0.75N08700 . .
17、. 0.04 2.00 0.040 0.030 1.00 19.023.0 24.026.0 4.35.0 . . . Cu 0.50Cb 8 3 Cmin0.40 maxS20100 201 0.15 5.57.5 0.060 0.030 1.00 16.018.0 3.55.5 . . . 0.25 . . .S20161 . . . 0.15 4.06.0 0.045 0.030 3.04.0 15.018.0 4.06.0 . . . 0.080.20 . . .S20162 . . . 0.15 4.08.0 0.040 0.040 2.54.5 16.521.0 6.010.0 0
18、.502.50 0.050.25 . . .S20200 202 0.15 7.510.0 0.060 0.030 1.00 17.019.0 4.06.0 . . . 0.25 . . .S20500 205 0.120.25 14.015.5 0.060 0.030 1.00 16.518.0 1.01.7 . . . 0.320.40 . . .S20910 XM-19 0.06 4.06.0 0.045 0.030 1.00 20.523.5 11.513.5 1.503.00 0.200.40 Cb 0.100.30,V 0.100.30S21800 . . . 0.10 7.09.
19、0 0.060 0.030 3.54.5 16.018.0 8.09.0 . . . 0.080.18 . . .S21900 XM-10 0.08 8.010.0 0.045 0.030 1.00 19.021.5 5.57.5 . . . 0.150.40 . . .S21904 XM-11 0.04 8.010.0 0.045 0.030 1.00 19.021.5 5.57.5 . . . 0.150.40 . . .S24000 XM-29 0.08 11.514.5 0.060 0.030 1.00 17.019.0 2.33.7 . . . 0.200.40 . . .S2410
20、0 XM-28 0.15 11.014.0 0.045 0.030 1.00 16.519.0 0.502.50 . . . 0.200.45 . . .S28200 . . . 0.15 17.019.0 0.045 0.030 1.00 17.019.0 . . . 0.751.25 0.400.60 Cu 0.751.25S30200 302 0.15 2.00 0.045 0.030 1.00 17.019.0 8.010.0 . . . 0.10 . . .S30215 302B 0.15 2.00 0.045 0.030 2.003.00 17.019.0 8.010.0 . .
21、. 0.10 . . .S30400 304 0.08 2.00 0.045 0.030 1.00 18.020.0 8.011.0 . . . . . . . . .S30403 304LC0.030 2.00 0.045 0.030 1.00 18.020.0 8.012.0 . . . . . . . . .S30451 304N 0.08 2.00 0.045 0.030 1.00 18.020.0 8.011.0 . . . 0.100.16 . . .S30452 XM-21 0.08 2.00 0.045 0.030 1.00 18.020.0 8.010.0 . . . 0.1
22、60.30 . . .S30453 304LN 0.030 2.00 0.045 0.030 1.00 18.020.0 8.011.0 . . . 0.100.16 . . .S30454 . . . 0.03 2.00 0.045 0.030 1.00 18.020.0 8.011.0 . . . 0.160.30 . . .S30500 305 0.12 2.00 0.045 0.030 1.00 17.019.0 11.013.0 . . . . . . . . .S30800 308 0.08 2.00 0.045 0.030 1.00 19.021.0 10.012.0 . . .
23、 . . . . . .S30815 . . . 0.050.10 0.80 0.040 0.030 1.402.00 20.022.0 10.012.0 . . . 0.140.20 Ce 0.030.08S30900 309 0.20 2.00 0.045 0.030 1.00 22.024.0 12.015.0 . . . . . . . . .S30908 309S 0.08 2.00 0.045 0.030 1.00 22.024.0 12.015.0 . . . . . . . . .S30940 309Cb 0.08 2.00 0.045 0.030 1.00 22.024.0
24、12.016.0 . . . . . . Cb 103C-1.10S31000 310 0.25 2.00 0.045 0.030 1.50 24.026.0 19.022.0 . . . . . . . . .S31008 310S 0.08 2.00 0.045 0.030 1.50 24.026.0 19.022.0 . . . . . . . . .S31040 310Cb 0.08 2.00 0.045 0.030 1.50 24.026.0 19.022.0 . . . . . . Cb 103C-1.10S31254 . . . 0.020 1.00 0.030 0.010 0.
25、80 19.520.5 17.518.5 6.06.5 0.180.22 Cu 0.501.00S31400 314 0.25 2.00 0.045 0.030 1.503.00 23.026.0 19.022.0 . . . . . . . . .S31600 316 0.08 2.00 0.045 0.030 1.00 16.018.0 10.014.0 2.003.00 . . . . . .S31603 316LC0.030 2.00 0.045 0.030 1.00 16.018.0 10.014.0 2.003.00 . . . . . .S31635 316Ti 0.08 2.0
26、0 0.045 0.030 1.00 16.018.0 10.014.0 2.003.00 0.10 Ti 53(C+N)-0.70S31640 316Cb 0.08 2.00 0.045 0.030 1.00 16.018.0 10.014.0 2.003.00 0.10 Cb 103C-1.10S31651 316N 0.08 2.00 0.045 0.030 1.00 16.018.0 10.014.0 2.003.00 0.100.16 . . .S31653S31654316LN.0.0300.032.002.000.0450.0450.0300.0301.001.0016.018.
27、016.018.010.013.010.013.02.003.002.003.000.100.160.160.30.S31700 317 0.08 2.00 0.045 0.030 1.00 18.020.0 11.015.0 3.04.0 0.10 . . .S31725 . . . 0.030 2.00 0.045 0.030 1.00 18.020.0 13.517.5 4.05.0 0.20 . . .S31726 . . . 0.030 2.00 0.045 0.030 1.00 17.020.0 14.517.5 4.05.0 0.100.20 . . .S31727 . . .
28、0.030 1.00 0.030 0.030 1.00 17.519.0 14.516.5 3.84.5 0.150.21 Cu 2.84.0S32053 . . . 0.030 1.00 0.030 0.010 1.00 22.024.0 24.026.0 5.06.0 0.170.22 . . .S32100 321 0.08 2.00 0.045 0.030 1.00 17.019.0 9.012.0 . . . . . . Ti 53(C+N)-0.70DS32654 . . . 0.020 2.04.0 0.030 0.005 0.50 24.025.0 21.023.0 7.08.
29、0 0.450.55 Cu 0.300.60S34565 . . . 0.030 5.07.0 0.030 0.010 1.00 23.025.0 16.018.0 4.05.0 0.400.60 Cb 0.10S34700 347 0.08 2.00 0.045 0.030 1.00 17.019.0 9.012.0 . . . . . . Cb 103C1.10S34800 348 0.08 2.00 0.045 0.030 1.00 17.019.0 9.012.0 . . . . . . Cb 103C1.10,Ta 0.10Co 0.20Austenitic-Ferritic Gra
30、desS31100 XM-26 0.06 1.00 0.045 0.030 1.00 25.027.0 6.07.0 . . . . . . Ti 0.25S31803 . . . 0.030 2.00 0.030 0.020 1.00 21.023.0 4.56.5 2.53.5 0.080.20 . . .S32101 . . . 0.040 4.06.0 0.040 0.030 1.00 21.022.0 1.351.70 0.100.80 0.200.25 Cu 0.100.80S32202 . . . 0.030 2.00 0.040 0.010 1.00 21.524.0 1.00
31、2.80 0.45 0.180.26 . . .S32205 . . . 0.030 2.00 0.030 0.020 1.00 22.023.0 4.56.5 3.03.5 0.140.20 . . .S32304 . . . 0.030 2.50 0.040 0.030 1.00 21.524.5 3.05.5 0.050.60 0.050.20 Cu 0.050.60S32506 . . . 0.030 1.00 0.040 0.015 0.90 24.026.0 5.57.2 3.03.5 0.080.20 W 0.050.30S32550 . . . 0.04 1.50 0.040
32、0.030 1.0 24.027.0 4.56.5 2.93.9 0.100.25 Cu 1.502.50S32750 . . . 0.030 1.20 0.035 0.020 0.80 24.026.0 6.08.0 3.05.0 0.240.32 Cu 0.50S32760E. . . 0.030 1.00 0.030 0.010 1.00 24.026.0 6.08.0 3.04.0 0.200.30 Cu 0.501.00W 0.501.00Ferritic GradesA 276 08a24.1.1.4 Condition SStrain HardenedRelatively lig
33、htcold work4.1.1.5 Condition BRelatively severe cold work5. Chemical Composition5.1 The steel shall conform to the requirements for chemicalcomposition specified in Table 1.5.2 Methods and practices relating to chemical analysisrequired by this specification shall be in accordance with TestMethods,
34、Practices, and Terminology A 751.6. Mechanical Properties Requirements6.1 The material shall conform to the mechanical testrequirements specified in Table 2.6.2 The martensitic grades shall be capable of meeting thehardness requirements after heat treating as specified in Table3.6.3 Hardness measure
35、ments, when required, shall be madeat a location midway between the surface and the center of thecross section.7. Magnetic Permeability7.1 When required by the purchase order, the magneticpermeability of Types 201 and 205 in the annealed conditionshall not exceed 1.2 as tested by a Severn-type indic
36、ator.8. General Requirements8.1 In addition to the requirements of this specification, allrequirements of the current edition of Specification A 484/A 484M shall apply. Failure to comply with the generalrequirements of Specification A 484/A 484M constitutes non-conformance to this specification.9. C
37、ertification9.1 Upon request of the purchaser in the contract or order,the producers certification that the material was manufacturedand tested in accordance with this specification, together witha certified report of the test results shall be furnished at the timeof the shipment.TABLE 1 ContinuedUN
38、SDesigna-tionBTypeComposition, %Carbon ManganesePhos-phorusSulfur Silicon Chromium NickelMolyb-denumNitrogen Other ElementsS40500 405 0.08 1.00 0.040 0.030 1.00 11.514.5 0.50 . . . . . . Al 0.100.30S40976 . . . 0.030 1.00 0.040 0.030 1.00 10.511.7 0.751.00 . . . 0.040 Cb 103(C+N)-0.80S42900 429 0.12
39、 1.00 0.040 0.030 1.00 14.016.0 . . . . . . . . . . . .S43000 430 0.12 1.00 0.040 0.030 1.00 16.018.0 . . . . . . . . . . . .S44400 444 0.025 1.00 0.040 0.030 1.00 17.519.5 1.00 1.752.50 0.035 Ti+Cb 0.20+4 3(C+N)-0.80S44600 446 0.20 1.50 0.040 0.030 1.00 23.027.0 0.75 . . . 0.25 . . .S44627 XM-27F0.
40、010G0.40 0.020 0.020 0.40 25.027.5 0.50 0.751.50 0.015GCu 0.20Cb 0.050.20S44700 . . . 0.010 0.30 0.025 0.020 0.20 28.030.0 0.15 3.54.2 0.020 C+N 0.025Cu 0.15S44800 . . . 0.010 0.30 0.025 0.020 0.20 28.030.0 2.002.50 3.54.2 0.020 C+N 0.025Cu 0.15Martensitic GradesS40300 403 0.15 1.00 0.040 0.030 0.50
41、 11.513.0 . . . . . . . . . . . .S41000 410 0.080.15 1.00 0.040 0.030 1.00 11.513.5 . . . . . . . . . . . .S41040 XM-30 0.18 1.00 0.040 0.030 1.00 11.013.0 . . . . . . . . . Cb 0.050.30S41400 414 0.15 1.00 0.040 0.030 1.00 11.513.5 1.252.50 . . . . . . . . .S41425 . . . 0.05 0.501.00 0.020 0.005 0.5
42、0 12.015.0 4.07.0 1.502.00 0.060.12 Cu 0.30S41500H0.05 0.501.00 0.030 0.030 0.60 11.514.0 3.55.5 0.501.00 . . . . . .S42000 420 0.15 min 1.00 0.040 0.030 1.00 12.014.0 . . . . . . . . . . . .S42010 . . . 0.150.30 1.00 0.040 0.030 1.00 13.515.0 0.350.85 0.400.85 . . . . . .S43100 431 0.20 1.00 0.040
43、0.030 1.00 15.017.0 1.252.50 . . . . . . . . .S44002 440A 0.600.75 1.00 0.040 0.030 1.00 16.018.0 . . . 0.75 . . . . . .S44003 440B 0.750.95 1.00 0.040 0.030 1.00 16.018.0 . . . 0.75 . . . . . .S44004 440C 0.951.20 1.00 0.040 0.030 1.00 16.018.0 . . . 0.75 . . . . . .AMaximum, unless range or minimu
44、m is indicated.BDesignations established in accordance with Practice E 527 and SAE J 1086.CFor some applications, the substitution of Type 304L for Type 304, or Type 316L for Type 316 may be undesirable because of design, fabrication, or servicerequirements. In such cases, the purchaser should so in
45、dicate on the order.DNitrogen content is to be reported for this grade.E%Cr+3.33 %Mo+163 %N$ 40.FNickel plus copper shall be 0.50 % max.GProduct analysis tolerance over the maximum limit for carbon and nitrogen shall be 0.002 %.HWrought version of CA 6NM.A 276 08a3TABLE 2 Mechanical RequirementsType
46、 Condition FinishDiameter or Thickness,in. (mm)TensileStrength,minYield Strength,AminElonga-tionin2in. (50 mm)Bor 4Dmin %Reduc-tion ofArea,C,Dmin, %BrinellHard-ness,Emaxksi MPa ksi MPaAustenitic GradesN08367 A hot-finished orcold-finishedall 95 655 45 310 30 50 . . .N08700 A hot-finished orcold-fini
47、shedall 80 550 35 240 30 50 . . .201, 202 A hot-finished orcold-finishedall 75 515 40 275 40 45 . . .S20161 A hot-finished all 125 860 50 345 40 40 255cold-finished all 125 860 50 345 40 40 311S20162 A hot-finished orcold finishedall 100 690 50 345 50 60 . . .205 A hot-finished orcold-finishedall 10
48、0 690 60 414 40 50 . . .XM-19 A hot-finished orcold-finishedall 100 690 55 380 35 55 . . .Ashot-rolledhot-finished orcold-finishedup to 2 (50.8), incl 135 930 105 725 20 50 . . .over 2 to 3 (50.8 to 76.2),incl115 795 75 515 25 50 . . .over 3 to 8 (76.2 to 203.2),incl100 690 60 415 30 50 . . .S21800
49、A hot-finished orcold-finishedall 95 655 50 345 35 55 241XM-10, XM-11 A hot-finished orcold-finishedall 90 620 50 345 45 60 . . .XM-29 A hot-finished orcold-finishedall 100 690 55 380 30 50 . . .XM-28 A hot-finished orcold-finishedall 100 690 55 380 30 50 . . .S24565 A hot-finished orcold-finishedall 1
