1、Designation: A1065/A1065M 09Standard Specification forCold-Formed Electric-Fusion (Arc) Welded High-StrengthLowAlloy Structural Tubing in Shapes, with 50 ksi 345MPa Minimum Yield Point1This standard is issued under the fixed designation A1065/A1065M; the number immediately following the designation
2、indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers three Types
3、and two Grades ofcold formed electric-fusion (arc) welded high-strength low-alloy steel tubing of 50 ksi 345 MPa minimum yield point foruse in welded or bolted construction of buildings and forgeneral structural purposes.1.2 This tubing is produced in square and rectangular sizeswith a periphery of
4、200 in. 500 cm or less and a specified wallthickness of 1.00 in. 25 mm or less. Tubes are joined by twolongitudinal electric-fusion (arc) welds. Circumferential weldsare disallowed. Sizes outside of those listed in Tables 4 and 5may be ordered provided all other requirements of the speci-fication ar
5、e met. Typical lengths are 1550 ft. 5-15 m.NOTE 1Products manufactured to this specification may not besuitable for those applications such as dynamically loaded elements inwelded structures, etc. where low-temperature toughness properties maybe important. (See Supplementary Requirement S1)1.3 This
6、specification covers the following Types:1.3.1 Type 1Welded with backing, backing left in theproduct,1.3.2 Type 2Welded with backing, backing removed,1.3.3 Type 3Welded without backing.1.4 Tubing is available in Grades 50 345 and 50W345W. Grade 50 345 is manufactured from high-strengthlow-alloy stee
7、l. Grade 50W 345W is manufactured fromhigh-strength low-alloy steel with enhanced atmospheric cor-rosion resistance. (See 10.1.2) The Grades may not be inter-changed without approval of the purchaser. ASTM Specifica-tions for plate that may be applied to Grade 50 345 and 50W345W are listed in Refere
8、nce Documents and in Table 1.1.5 This specification is expressed in both inch-pound unitsand in SI units; however, unless the purchase order or contractspecifies the applicable M specification designation (SI units),the inch-pound units shall apply. The values stated in either SIunits or inch-pound
9、units are to be regarded separately asstandard. Within the text, the SI units are shown in brackets.The values stated in each system may not be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with t
10、he standard.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.
11、Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars, Plates, Shapes, and Sheet PilingA242/A242M Specification for High-Strength Low-AlloyStructural SteelA572/A572M Specification for High-Strength Low-AlloyColumbium-Vanadium Structural
12、 SteelA588/A588M Specification for High-Strength Low-AlloyStructural Steel, up to 50 ksi 345 MPa Minimum YieldPoint, with Atmospheric Corrosion ResistanceA656/A656M Specification for Hot-Rolled Structural Steel,High-Strength Low-Alloy Plate with Improved Formabil-ityA700 Practices for Packaging, Mar
13、king, and Loading Meth-ods for Steel Products for ShipmentA709/A709M Specification for Structural Steel for BridgesA941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysA945/A945M Specification for High-Strength Low-AlloyStructural Steel Plate with Low Carbon and Restr
14、ictedSulfur for Improved Weldability, Formability, and Tough-nessG101 Guide for Estimating the Atmospheric CorrosionResistance of Low-Alloy Steels1This test method is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of Subcommi
15、tteeA01.09 on Carbon Steel Tubular Products.Current edition approved Dec. 1, 2009. Published January 2010.2For 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 standa
16、rds Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 AWS Standard3AWS D1.1 Structural Welding Code-Steel2.3 Military Standard4MIL-STD-129 Marking for Shipment and Storage2.4 Federal Standar
17、d4Fed. Std. No. 123 Marking for Shipment2.5 Steel Tube Institute5Hollow Structural Sections2.6 AISC6Manual of Steel Construction3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology A941.3.2 Definitions of Terms Specific to This Standard:3.3 HSS5, na
18、 Hollow Structural Section is a cold-formedwelded steel tube used for welded or bolted construction ofbuildings, bridges and other structures.3.4 electric fusion (arc) welded, na welding process thatuses an electric arc as the source of heat to melt and joinmetals.3.5 weld reinforcement, nthat porti
19、on of the weld seamabove the plane of the plate surface.4. Ordering Information4.1 Orders for material under this specification shall containthe following mandatory information:4.1.1 Size (outside dimensions, thickness and length),4.1.2 Name Cold Formed Arc Welded HSLA StructuralTubing,4.1.3 Quantit
20、y (number of lengths of each size),4.1.4 Type (1, 2, or 3),4.1.5 Grade 50 345 or Grade 50W 345W,4.1.6 Individual supplementary requirements, if required(Supplementary Requirements S1 to S4, inclusive).5. Manufacture5.1 The steel from which the tubing is made shall conformto Specifications A242/A242M
21、, A572/A572M, A588/A588M,A656/A656M, A709/A709M,orA945/A945M. The Specifica-tions are identified in Table 1 according to Grade 50 345 orGrade 50W 345W. The choice of Grade and ASTM Standardsteel material is at the manufacturers option unless identifiedin the purchase order (See Supplementary Require
22、ment S3).5.2 Two equally shaped pieces of flat-rolled plate product ofthe same ASTM plate specification shall be press brake formedinto halves of the finished size. Types 1 and 2 tubing shall havecontinuous backup bars tack welded to each leg of one of thehalf-sections. The two half sections shall b
23、e fitted together andarc welded with two seam welds to complete the tubing. Type2 tubing shall have the backing removed after seam welding.Type 3 tubing shall be manufactured without backup bars.5.3 The electric-fusion (arc) weld shall be deposited by thesubmerged arc welding process, flux cored arc
24、 welding processor gas metal arc welding process. The electrode shall be ofmatching strength.5.4 Grade 50W 345W backing shall be enhanced atmo-spheric corrosion resistant material. The electrode shall complywith atmospheric corrosion resistance requirements.5.5 The standard weld shall be a partial j
25、oint penetrationSingle-V-groove weld with groove depth not less than eightypercent of the material thickness. For complete joint penetra-tion welds, see Supplementary Requirement S2.5.6 The seam welds shall join the smaller flat sides of thestructural section. (See Supplementary Requirement S4 for t
26、heoption of joining the larger flat sides).5.7 Welding shall be in accordance with AWS D1.1, latestedition.6. Material6.1 Table 1 identifies ASTM high-strength low-alloy stan-dard specification steel from which the tubing shall be manu-factured. Some Specifications have more than one Grade orType. T
27、he Specifications provide chemical compositions.7. Mechanical Properties7.1 The material as represented by the steel producer shallconform to the requirements of Table 2.8. Permissible Variations in Dimensions8.1 Outside DimensionsThe outside dimensions mea-sured across the flats at positions at lea
28、st 2 in. 50 mm fromthe ends of the tubing shall not vary from the specified outsidedimensions by more than the applicable amount given in Table3. Measurement shall not include the weld reinforcement.Table 3 includes allowances for convexity and concavity.8.2 ThicknessThe permissible variation in wal
29、l thicknessshall be +0.03/-0.01in. +0.76/-0.25 mm (Table 1 of Specifi-cation A6/A6M).8.3 LengthThe permissible variation for length shall be+6/-0 in. +150/-25 mm.8.4 StraightnessThe permissible variation for straightnessshall be18 in. times the number of feet 10.4 mm times thenumber of metres of tot
30、al length divided by 5.8.5 Squareness of SidesAdjacent sides shall be square(90), with a permissible variation of 6 2 max.8.6 Radius of CornersCorners shall be bent with a bendradius three times the thickness (3t) or greater.63Available from American Welding Society (AWS), 550 NW LeJeune Rd.,Miami,
31、FL 33126, http:/www.aws.org.4Available from Global Engineering Documents, 15 Inverness Way, EastEnglewood, CO 80112-5704, http:/.5Available from Steel Tube Institute of North America, 2000 Ponce de Leon,Suite 600, Coral Gables, FL 33134.6Available from American Institute of Steel Construction (AISC)
32、, One E.Wacker Dr., Suite 700, Chicago, IL 60601-2001, http:/www.aisc.org.TABLE 1 ASTM Plate SpecificationsAGrade 50 345 A572/A572M, A656/A656M, A709/A709M, A945/A945MGrade 50W 345 A242/A242M, A588/A588M, A709/A709M HPS 50WAIndividual specifications may have more than one Grade or Type and providech
33、emical requirements.TABLE 2 Tensile RequirementsGrade 50 345 Grade 50W 345WTensile strength, min, psi MPa 60 000 415 70 000 480Yield strength, min, psi MPa 50 000 345 50 000 345Elongation in 2 in. 50 mm, min. % 21 21A1065/A1065M 0928.7 TwistThe permissible twist shall not exceed 0.125 in.per 3 ft 3
34、mm per metre of length. Twist shall be determinedby holding one end of the tubing down on a flat surface plate,measuring the height that each corner on the bottom side of thetubing extends above the surface plate near the opposite endsof the tubing, and calculating the twist (difference in heights o
35、fthe corners). For heavier sections it shall be permissible to usea suitable measuring device to determine twist. Twist measure-ments shall not be taken within 2 in. 50 mm of the ends of thetubing.8.8 Weld ReinforcementThe weld reinforcement shall notexceed 0.125 in. 3 mm.9. Inspection9.1 All tubing
36、 shall be visually inspected (VT) at the placeof manufacture to ensure conformance to the requirements ofthis specification.9.2 All tubing shall be free of injurious defects and shallhave a workmanlike finish.10. Atmospheric Corrosion Resistance10.1 Steels meeting this specification provide two leve
37、ls ofatmospheric corrosion resistance:10.1.1 Steel Grade 50 345 provides a level of atmosphericcorrosion resistance typical of carbon or alloy steel withoutcopper.10.1.2 Steel Grade 50W 345W shall have an atmosphericcorrosion resistance index of 6.0 or higher, calculated from theheat analysis in acc
38、ordance with Guide G101 (See Note 2).When properly exposed to the atmosphere, these steels can beused bare (unpainted) for many applications. A242/A242M,A588/A588M andA709/A709M Grades HPS 50W 345W are50 ksi 345 MPa minimum yield steels with enhancedatmospheric corrosion resistance.TABLE 3 Permissib
39、le Variations in Outside Flat DimensionsNominal Outside Large Flat Dimension Permissible Variation Over and Under Nominal Outside FlatDimensionsSquares and rectangles with a large flat to small flat ratio less than3.00.015 times each flat dimensionRectangles with a large flat to small flat ratio equ
40、al to or greaterthan 3.00.02 times each flat dimensionTABLE 4 Permissible Variations in Outside Flat DimensionsAWall in./mm 0.313 8 0.375 10 0.500 13 0.625 16 0.750 19 1.000 25Outside Dimensionsin./mm12 3 12 300 3 300 X XXXXX13 3 13 330 3 330 X14 3 14 360 3 360 X15 3 15 380 3 380 X XXXXX16 3 16 410
41、3 410 X17 3 17 430 3 430 X18 3 18 460 3 460 X XXXXX19 3 19 480 3 480 X20 3 20 510 3 510 X21 3 21 530 3 530 XXXXX22 3 22 560 3 56023 3 23 580 3 58024 3 24 610 3 610 XXXXX25 3 25 640 3 64026 3 26 660 3 66027 3 27 690 3 690 XXXXX28 3 28 710 3 71029 3 29 740 3 74030 3 30 760 3 760 XXXXX31 3 31 790 3 790
42、 XXXX32 3 32 810 3 81033 3 33 840 3 84034 3 34 860 3 860 XXXX35 3 35 890 3 89036 3 36 910 3 91037 3 37 940 3 940 XXXX38 3 38 970 3 97039 3 39 990 3 990 XXX40 3 40 1020 3 102041 3 41 1040 3 104042 3 42 1070 3 1070 XXX43 3 43 1090 3 109044 3 44 1120 3 112045 3 45 1140 3 1140 XXX46 3 46 1170 3 117047 3
43、 47 1190 3 119048 3 48 1220 3 1220 XXXAConsult the producer for weight per foot calculations.A1065/A1065M 093TABLE 5 Wall Thicknesses for Rectangular ShapesAWall in./mm 0.313 8 0.375 10 0.500 13 0.625 16 0.750 19 1.000 25Outside Dimensionsin./mm12 3 8 300 3 200 X X X12 3 10 300 3 250 X X X X14 3 8 3
44、60 3 200 X X X14 3 10 360 3 250 X X X X14 3 12 360 3 300 X XXXX16 3 8 410 3 200 X X X16 3 10 410 3 250 X X X X16 3 12 410 3 300 X XXXX16 3 14 410 3 360 X18 3 8 460 3 200 X X X18 3 10 460 3 250 X X X X18 3 12 460 3 300 X XXXX18 3 14 460 3 360 X18 3 16 460 3 410 X XXXXX20 3 8 510 3 200 X X X20 3 10 51
45、0 3 250 X X X X20 3 12 510 3 300 X XXXX20 3 14 510 3 360 X XXXXX20 3 16 510 3 410 X20 3 18 510 3 460 X22 3 8 560 3 200 X X22 3 10 560 3 250 X X X22 3 12 560 3 300 XXXX22 3 14 560 3 360 XXXXX22 3 16 560 3 41022 3 18 560 3 46022 3 20 560 3 510 XXXXX24 3 8 610 3 200 X X24 3 10 610 3 250 X X X24 3 12 61
46、0 3 300 XXXX24 3 14 610 3 36024 3 16 610 3 410 XXXXX24 3 18 610 3 41024 3 20 610 3 51024 3 22 610 3 560 XXXXX26 3 10 660 3 250 X X X26 3 12 660 3 300 XXXX26 3 14 660 3 36026 3 16 660 3 410 XXXXX26 3 18 660 3 46026 3 20 660 3 51026 3 22 660 3 560 XXXXX26 3 24 660 3 61028 3 10 710 3 250 X X X28 3 12 7
47、10 3 300 XXXX28 3 14 710 3 36028 3 16 710 3 410 XXXXX28 3 18 710 3 46028 3 20 710 3 51028 3 22 710 3 560 XXXXX28 3 24 710 3 61028 3 26 710 3 61030 3 12 760 3 300 XXXX30 3 14 760 3 36030 3 16 760 3 41030 3 18 760 3 460 XXXXX30 3 20 760 3 51030 3 24 760 3 61030 3 28 760 3 710 XXXXX32 3 12 810 3 300 X
48、X X32 3 14 810 3 360 X X X32 3 16 810 3 410 X X X32 3 18 810 3 460 XXXX32 3 20 810 3 51032 3 22 810 3 56032 3 24 810 3 610 XXXX32 3 26 810 3 66032 3 28 810 3 71032 3 30 810 3 760 XXXX34 3 14 860 3 360 X X X34 3 16 860 3 410 X X X34 3 18 860 3 460 XXXXA1065/A1065M 094NOTE 2For methods of estimating the atmospheric corrosion resis-tance of low-alloy steels, see Guide G101. The user is cautioned that theGuide G101 predictive equation for calculation of an atmosphericcorrosion resistance index has only been verified for t
