1、Designation:A511/A511M16Standard 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 revision,the year of las
2、t 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 seamless stai
3、nless tubing foruse in mechanical applications or as hollow bar for use in theproduction of hollow components such as,but not limited tonozzles,reducers,and couplings by machining wherecorrosion-resistant or high-temperature strength is needed.Thegrades covered are listed in Table 1,Table 2,and Tabl
4、e 3.1.2 This specification covers seamless cold-finished me-chanical tubing and hollow bar and seamless hot-finishedmechanical tubing and hollow bar in sizes up to 1234in.325mm in outside nominal diameter(for round tubing)with wallthicknesses or inside diameters as required.1.3 Tubes for mechanical
5、applications shall be furnished inone of the following shapes,as specified by the purchaser:round,square,rectangular,or special.Tubes to be used ashollow bar shall be furnished in round shape.1.4 Optional supplementary requirements are provided andwhen desired,shall be stated in the order.1.5 The va
6、lues stated in inch-pound units are to be regardedas the standard.Within the text,the SI units are shown insquare brackets.The values stated in each system are not exactequivalents;therefore,each system shall be used independentlyof the other.2.Referenced Documents2.1 ASTM Standards:2A262 Practices
7、for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA1016/A1016M Specification for General Requirements forFerritic Alloy Steel,Austenitic Alloy Steel,and StainlessSteel TubesA1058 Test Methods for Mechanical Testing of SteelProductsMetricE112 Test Methods for Determini
8、ng Average Grain Size2.2 Military Standards:MIL-STD-129 Marking for Shipment and Storage3MIL-STD-163 Steel Mill Products Preparation for Shipmentand 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 int
9、ended to produceengineering components by machining,generally specified byminimum outside diameter and maximum inside diameter.3.1.2 mechanical tubingtubing of various shapes used formechanical and general engineering purposes,specified bynominal outside dimension and nominal wall.4.Ordering Informa
10、tion4.1 Orders for material under this specification shouldinclude the following as required to describe the desiredmaterial adequately:4.1.1 Quantity(feet,mass,or number of pieces),4.1.2 Name of material(seamless stainless steel mechanicaltubing or hollow bar),4.1.3 Mechanical Tubing Form only(roun
11、d,square,rectangular,special,see Section 1),4.1.4 Dimensions(round,nominal outside diameter andnominal wall thickness,(see 11.1 and 11.2)or minimumoutside diameter and maximum inside diameter(see 11.3);square and rectangular,nominal outside dimensions and nomi-nal wall thickness,see Section 12;other
12、,specify),4.1.5 Length(specific or random,see 11.4),4.1.6 Manufacture(cold-or hot-finished,see 6.5),4.1.7 Grade(Section 8),1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainle
13、ss and Alloy Steel Tubular Products.Current edition approved May 1,2016.Published May 2016.Originallyapproved in 1964.Last previous edition approved in 2015 as A511/A511M 15a.DOI:10.1520/A0511_A0511M-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Servic
14、e at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.*A Summary of Changes section appears a
15、t the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 TABLE 1 Chemical Requirements of Austenitic Stainless SteelsGradeComposition,%CarbonManga-nese,maxPhos-pho-rus,maxSul-fur,maxSilicon,maxNickelChromiumMolybdenumTita
16、niumNiobiumDSeleniumIronOtherElementsMT 3020.08 to 0.202.000.0400.0301.008.010.017.019.0.MT 3030.15 max2.000.200.15 min1.008.010.017.019.0.MT 303Se0.15 max2.000.0400.0401.008.011.017.019.0.0.120.2.MT 3040.08 max2.000.0400.0301.008.011.018.020.0.MT 304L0.035 maxA2.000.0400.0301.008.013.018.020.0.MT 3050.122.000.0400.0301.0010.013.017.019.0.MT 309S0.08 max2.000.0400.0301.0012.015.022.024.0.MT 310S0.08 max2.000.0400.0301.0019.022.024.026.0.MT 3160.08 max2.000.0400.0301.0011.014.016.018.02.03.0.MT 3