1、Designation:A55416Standard Specification forWelded Stainless Steel Mechanical Tubing1This standard is issued under the fixed designation A554;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.1.Scope*1.1 This specification covers welded austenitic,ferritic,andaustenitic-ferritic duplex stainless steel mechanical tubingintended for use in ornamental,struct
3、ural,exhaust,and otherapplications where appearance,mechanical properties,or cor-rosion resistance is needed.The grades covered are listed inTable 1.1.2 This specification covers as-welded or cold-reducedmechanical tubing in sizes to 16 in.(406.4 mm)outsidedimension,and in wall thicknesses 0.020 in.
4、(0.51 mm)andover.1.3 Tubes shall be furnished in one of the following shapesas specified by the purchaser:round,square,rectangular,orspecial.1.4 Supplementary requirements of an optional nature areprovided and when desired shall be so stated in the order.1.5 The values stated in inch-pound units are
5、 to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA751 Test Method
6、s,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsA790/A790M Specification for Seamless and WeldedFerritic/Austenitic Stainless Steel PipeA941 Terminology Relating to Steel,Stainless Steel,RelatedAlloys,and FerroalloysE527 Practice for Numbering Metals and Alloys in theUnified Numb
7、ering System(UNS)2.2 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)32.4 SAE Standard:SAE J 1086 Numbering Metals and Alloys43.Terminology3.1
8、DefinitionsFor definitions of terms used in thisspecification,refer to Terminology A941.4.Ordering Information4.1 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 o
9、f material(welded stainless steel mechanicaltubing),4.1.3 Form(round,square,rectangular,special,see 1.3),4.1.4 Dimensions:4.1.4.1 Round-outside diameter and wall thickness for allconditions(Section 9).Alternatively,for cold-reducedcondition,outside diameter and inside diameter or insidediameter and
10、wall dimensions may be specified,4.1.4.2 Square and rectangular outside dimensions and wallthickness(see 10.1),4.1.4.3 Special(to be specified),4.1.5 Length(mill lengths,cut lengths,or multiple lengths(see 9.3),4.1.6 Grade(Table 1),4.1.7 Condition(see 7.1),4.1.8 Inside diameter bead condition(see 7.
11、2),4.1.9 Surface finish(see Section 12),4.1.10 Report of chemical analysis,if required(Section 8),4.1.11 Individual supplementary requirements,if required,4.1.12 End use,4.1.13 Specification designation,1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and
12、Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved March 1,2016.Published March 2016.Originallyapproved in 1965.Last previous edition approved in 2015 as A55415a.DOI:10.1520/A0554-16.2For referenced ASTM standa
13、rds,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 Summary page onthe ASTM website.3Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philade
14、lphia,PA 191115094,Attn:NPODS.4Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096-0001,http:/www.sae.org.*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
15、States1 TABLE 1 Chemical RequirementsAUNS#JGradeComposition,%CarbonManga-nese,Phos-phorusSulfurSiliconNickelChromiumMolybdenumTitaniumColumbiumNitrogenCopperOtherAusteniticMT-3010.152.000.0450.0301.006.08.016.018.0.MT-3020.152.000.0450.0301.008.010.017.019.0.MT-3040.082.000.0450.0301.008.011.018.020
16、.0.MT-304L0.035B2.000.0450.0301.008.013.018.020.0.MT-3050.122.000.0450.0301.0010.013.017.019.0.MT-309S0.082.000.0450.0301.0012.015.022.024.0.MT-309S-Cb0.082.000.0450.0301.0012.015.022.024.0.CMT-310S0.082.000.0450.0301.0019.022.024.026.0.MT-3160.082.000.0450.0301.0010.014.016.018.02.03.0.MT-316L0.035B2.000.0450.0301.0010.015.016.018.02.03.0.S31655.0.0302.000.0450.0151.008.09.519.521.50.501.50.0.140.251.00.MT-3170.082.000.0450.0301.0011.014.018.020.03.04.0.MT-3210.082.000.0450.0301.009.013.017.020
