6
4k Designatio n: ArailAr06M - oeb TNTERNATIONAL Low-Alloy steer Deformed and Frain Bars for concrete Reinforcernentl 'Ilris standard is issued unrler.the fixed designatlon A706/A706[ or originar adoption oi ;o.,r,"'"0*" or revision, ,'" ,*, "i,;-f""l'lliiil,"J,##:f il1.J*:i:T1l1ffiiJil?T:'"",Tii:*ilfiJ"T: A sulrerscript epsilon (e) i'dicates an editoriar change sincl the last re'ision'r.reapproval. This sttnrlard has been apprcted.for ut;e b1, rryerrcies of tlrc Deparnn1tt of Defense. 1. Scope* 1.1 General-This specification covers deformed ancl plain low-alloy steel bars in cut rengths or coils for corrcr.ete reinfbrcement intended for applicitions where restrictive rxe_ chanical properties and chemical composition are required for compatibility with controllecl tensile pr:operty applicatlons or to enhance _w_eldability. The standard "sizes and clirnensions oi deformed bars and their number designations arc given in 'Ibble 1. The text of this specificatiorireferences notes and footnotes that provide explanatory material. These notes and footnotes, excluding those in tabljs, shall not be consiclered as lequirements of this speciflcation. 1.2 Grade-Bars are of two mjnimum yield strength levels: namely, 60 000 psi [420Mpa] and g0 000 15501, clesignated as Grade 60 1420) and Grade g0 [550], respectively. . Nglg l*nars designarecl as Gracle g0 t5501, which were inrroduced in the A706/A706M * 09a revision, may be outside consicteration of consen_ sus design codes and specifications, 1.3 Plain bars, in sizes up to ancl including2%in. |63.5 mml in diameter in coils or cut lengths, wheri ordered, shall be fumished under this specification. For ductility proper.ties (elongation and bending), test provisions of the nearest smaller nominal diameter defonned bar size shall apply, 7.4 contrutlled knsile properties-This specification lirnits mechanical properties (?rble 2) to pr:ovide ihe desirecl yield/ tensile properties for controllecl tensile propefty applications. 1.5 Welding-This specification limits inemcai composi_ tion (6.2) and carbon equivalent (6.4) to enhance the weldabil_ ity of the material. When steel is to be welded, a welding procedure sriitable for the chemical composition and intended use 0r service should be used. The use o1 the ratest ecrition of AW,S DI.4/D1.4fo{ is recomrnendecl. This docunent describes the proper selection of the - filler metals, preheat/intetpass temporatures, as weli as, perfornance and proceclure qulin_ cation reqnirements. Standard $pecification for rThis specilication is un<icr rhc jurisdiorion of ASTM commirree A0r on slcer, stainless Steel and Related Alroys ancr is the di.ect responsibility of subcommittec A0l.()5 on Stet'l Reinlbr.ccmenr. Cunent edition approvecl Nov. 15, 2009. publishecl December 2009, Originally 1plloved in 1974. Last prel,ious edition appr.ovecl in 2009 as A706/A106M_09a. DOI: 10. I 520/40706-A0706M-098. . 1.6 This specification is .rpplicable fbr orders in either inch-poul^d_units (Specilication elOO; or in Sf units [Specifi_ cation A706Ml. 1.7 The values stated in either inch_pound units or SI units are to be r.egarded as standard. Within tire text, ilre SI units are shown in brackets. The values stated in "u"h ,yrr** are not exact eqnirralents; therefore, each system must be used incle- pendently of the other. Combining values from the two systems may lesult in nonconfbrmance with this specification. 1.8 Tltis statxderd does not purport ta address alt of tlze sctfety concerns, if any, ass,ociatecl with it,c use. It is the rc,sportsibility of the user of tltis stanclarcl to establislz appro- priate safety and, health practi.ces a,nd cleterm.irr,e the ap iica_ bi.lity of regulaturv lirnitations prior to Ltse. 2. I{eferenced l)ocuments 2.1 ASTM Sta,ndatd,s:2 A6/A6M Specification for General Requiremenrs ibr Rollecl Strucfural Steel Bars, plates, Shapes, anci Sheet piling ,4370 'lbsr Merhocls and Delinitioni for.Mechanical .lesiing of Steel pr.oducts A5l0 Specificarion fbr Ceneral Reqniren:ents tbr Wire Rods and Coarse Rouncl Wire, Carbon Steel A510lvI Specification frir General Requirements ibr Wire Rocls and Coarse Rouncl \Vire, Car.hon Sreel (Merric) A6-15/,4615M Specificarion for Deformecl and .Flain Carbor:-Steel Bars for Concrete Reinforcement .4700 Practices for packaging, Marking, and Loac.ling MerJr- ods fbl Steel products for Shipment A75'l Test Methocls, pr.actjces, anct Ter:minology ibr: Cherni_ cal Analysis of Steel proclucts F29 Practice irrr Using Signi{icanr Digits ir: Tesr Data to De lenniir e Confonnarnce with S peci l,i ctiti ons 2.2 AWS Skuulard:3 AWS Di.4/D1.4M Strucrural Welding Code_Reinforcing Steel 2For r.cfclenccd ASTM srandartjs, visit the ASTM rvcbsite, www.asrm.or€, or cortact ASTM Custorrer service at se'[email protected] . Fo, Arrnuar llook o7 a37'nl S.tandatds volumc infonnation, rcfcr to the standard,slfocumctrt Snmma.y page on fhc ASTM wcbsite. 3 Available fi.om American Wclding Society (AWS), .550 NW LcJeune Rd., lr4iarni, FL 33 1 26, htp://wrvw.aws.ors. *A surnmary of changes section appears at trre entr of this standard. copyright oASTM lnternational' 100 Barr Harbour Dr' P.o box c70o west conshohocken, pennsyrvania r9428.2959, united states

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Page 1: astm a706-a706m-09b

4k Designatio n: ArailAr06M - oeb

TNTERNATIONAL

Low-Alloy steer Deformed and Frain Bars for concreteReinforcernentl

'Ilris standard is issued unrler.the fixed designatlon A706/A706[or originar adoption oi ;o.,r,"'"0*" or revision, ,'" ,*, "i,;-f""l'lliiil,"J,##:f il1.J*:i:T1l1ffiiJil?T:'"",Tii:*ilfiJ"T:A sulrerscript epsilon (e) i'dicates an editoriar change sincl the last re'ision'r.reapproval.This sttnrlard has been apprcted.for ut;e b1, rryerrcies of tlrc Deparnn1tt of Defense.

1. Scope*

1.1 General-This specification covers deformed ancl plainlow-alloy steel bars in cut rengths or coils for corrcr.etereinfbrcement intended for applicitions where restrictive rxe_chanical properties and chemical composition are required forcompatibility with controllecl tensile pr:operty applicatlons or toenhance

_w_eldability. The standard "sizes and clirnensions oideformed bars and their number designations arc given in'Ibble 1. The text of this specificatiorireferences notes andfootnotes that provide explanatory material. These notes andfootnotes, excluding those in tabljs, shall not be consiclered aslequirements of this speciflcation.

1.2 Grade-Bars are of two mjnimum yield strength levels:namely, 60 000 psi [420Mpa] and g0 000 15501, clesignated asGrade 60 1420) and Grade g0 [550], respectively.

. Nglg l*nars designarecl as Gracle g0 t5501, which were inrroduced inthe A706/A706M * 09a revision, may be outside consicteration of consen_sus design codes and specifications,

1.3 Plain bars, in sizes up to ancl including2%in. |63.5 mmlin diameter in coils or cut lengths, wheri ordered, shall befumished under this specification. For ductility proper.ties(elongation and bending), test provisions of the nearest smallernominal diameter defonned bar size shall apply,

7.4 contrutlled knsile properties-This specification lirnitsmechanical properties (?rble 2) to pr:ovide ihe desirecl yield/tensile properties for controllecl tensile propefty applications.

1.5 Welding-This specification limits inemcai composi_tion (6.2) and carbon equivalent (6.4) to enhance the weldabil_ity of the material. When steel is to be welded, a weldingprocedure sriitable for the chemical composition and intendeduse 0r service should be used. The use o1 the ratest ecrition ofAW,S DI.4/D1.4fo{ is recomrnendecl. This docunent describesthe proper selection of the

- filler metals, preheat/intetpass

temporatures, as weli as, perfornance and proceclure qulin_cation reqnirements.

Standard $pecification for

rThis specilication is un<icr rhc jurisdiorion of ASTM commirree A0r on slcer,stainless Steel and Related Alroys ancr is the di.ect responsibility of subcommittecA0l.()5 on Stet'l Reinlbr.ccmenr.

Cunent edition approvecl Nov. 15, 2009. publishecl December 2009, Originally1plloved in 1974. Last prel,ious edition appr.ovecl in 2009 as A706/A106M_09a.DOI: 10. I 520/40706-A0706M-098.

. 1.6 This specification is .rpplicable fbr orders in eitherinch-poul^d_units (Specilication elOO; or in Sf units [Specifi_cation A706Ml.

1.7 The values stated in either inch_pound units or SI unitsare to be r.egarded as standard. Within tire text, ilre SI units areshown in brackets. The values stated in

"u"h ,yrr** are not

exact eqnirralents; therefore, each system must be used incle-pendently of the other. Combining values from the two systemsmay lesult in nonconfbrmance with this specification.

1.8 Tltis statxderd does not purport ta address alt of tlzesctfety concerns, if any, ass,ociatecl with it,c use. It is therc,sportsibility of the user of tltis stanclarcl to establislz appro-priate safety and, health practi.ces a,nd cleterm.irr,e the ap iica_bi.lity of regulaturv lirnitations prior to Ltse.

2. I{eferenced l)ocuments2.1 ASTM Sta,ndatd,s:2A6/A6M Specification for General Requiremenrs ibr Rollecl

Strucfural Steel Bars, plates, Shapes, anci Sheet piling,4370 'lbsr Merhocls and Delinitioni for.Mechanical .lesiing

of Steel pr.oducts

A5l0 Specificarion fbr Ceneral Reqniren:ents tbr WireRods and Coarse Rouncl Wire, Carbon Steel

A510lvI Specification frir General Requirements ibr WireRocls and Coarse Rouncl \Vire, Car.hon Sreel (Merric)

A6-15/,4615M Specificarion for Deformecl and .FlainCarbor:-Steel Bars for Concrete Reinforcement

.4700 Practices for packaging, Marking, and Loac.ling MerJr-ods fbl Steel products for Shipment

A75'l Test Methocls, pr.actjces, anct Ter:minology ibr: Cherni_cal Analysis of Steel proclucts

F29 Practice irrr Using Signi{icanr Digits ir: Tesr Data toDe lenniir e Confonnarnce with S peci l,i ctiti ons

2.2 AWS Skuulard:3AWS Di.4/D1.4M Strucrural Welding Code_Reinforcing

Steel

2For r.cfclenccd ASTM srandartjs, visit the ASTM rvcbsite, www.asrm.or€, orcortact ASTM Custorrer service at se'[email protected] . Fo, Arrnuar llook o7 a37'nlS.tandatds volumc infonnation, rcfcr to the standard,slfocumctrt Snmma.y page onfhc ASTM wcbsite.

3 Available fi.om American Wclding Society (AWS), .550 NW LcJeune Rd.,lr4iarni, FL 33 1 26, htp://wrvw.aws.ors.

*A surnmary of changes section appears at trre entr of this standard.copyright oASTM lnternational' 100 Barr Harbour Dr' P.o box c70o west conshohocken, pennsyrvania r9428.2959, united states

Page 2: astm a706-a706m-09b

,{$}p nzoonToom - oeb

TABLE 1 Deformed Bar Designation Numbers; Nominal Weights [Masses], Nominal Dimensions, and Deformation RequirementsNominal DimensionsA DeJormation Requirements, in. [mm]Bar

Desig-nation

No.

Nominal Weight, Ib/lt

lNominal Mass,kg/ml

Cross-Sectional Areain.2[mm2]

Diameter,in. [mm]

Perimeter,in. [mm]

Maximum Average Minimum AverageSpacing Height

Maximum Gap(Chord of 12.5o/o olNominal Perimeter)

3 [10]4 t13l5 116l6' ll el7 122)B [25]e t2el

10 [32]11 [36]14 t4311a lR7)

0,3760.6681.0431.5022.0442.6703.4004.3035.3137.65

13.60

0.56010.99411.s521

2.23513.04213.97315,06016.40417.9071

0.11

0.200.310.44U,OU

0;791.001.27LCO

2.254.00

711

J 2elI OOI

2841

3B7l

51 0l6451

81 9l1 0061

14521

1.1781.5711.9632.3562.7493.1423.5443.9904.4305.327.09

to ol

39.91

49.91

5e.816e.Bl79.8190.01

111 .3Bl

[20.24]

0.s75 [ e.5]0.500 [12.7]0.625 [15.9]0.750 [19.1]0.875 122.211.000 [25.4]1.128 pe.7l1.270 132.3)1.410 [35.8]1.6e3 [43.0]2.257 157.31 [2581]

t101.31

[112.5][1 35.1 ][1 80.1 ]

0.262 | 6.71

0.350 [ 8.e]0.437 [11.1]0.525 [13.3]0.612 [15.5]0.700 [17.8]0.790 [20.1]0.889 [22.6]0.e87 [25.1]1.r85 [30.1]1.58 [40.1]

0.01s [0.38]0.020 [0.51]0,028 [0.71]0.038 [0.e7]0.044 [1 .] 2l0.050 [1,27]0.056 [1.42]0.064 [1.63]0.071 11,B0l0,085 [2.16]0.102 [2.59]

0.143 [ 3.6]0,191 [ 4.e]0.239 [ 6.'r]0.286 [ 7.3]0.334 [ 8.5]0,383 I 9,71

0.431 [10.9]0.487 112.410,540 [13.7]0.648 [16.5]0.864 [21.9]

Tensile strength, min, psi [MPa]Yield strength, min, psi [MPa]Yield strength, max, psi [MPa]Elongation in I in. [200 mm], min, %Bar Designation Nos.

3,4,5,6 110, 1s, 16, 191

7,8,9, 10, 11 t22,25,29,32,36114, 18 [43,57]

A The nominal dimensions of a deformed bar are equivalent to those ol a plain round bar having the same weight lmass] per foot lmetre] as the deformed bar.

TABLE 2 Tensile Requirements 4,1,3 Size,4.1.4 Grade,4.1.5 Cut lengtlrs or coils,4.1.6 Defonned or plain,4.1.7 Packaging (see Section 1'l),and4.1,8 ASTM designation and year of issue.

5. Material and Manufacture5.1 The bars shall be processed from properly identified

heats of mold-cast or strand-cast steel.5.2 The steel shall be made by one of the following

processes: electric-furnace, basic-oxygen, or open-heiuth.

6. Chemical Composition

6.1 The chemical analysis of each heat shall be determinedin accordance with Test Methods A751. The manufacturcr sha1lmake the anaiysis on test samples taken preferabiy during thepouring of the heat. The percentages of carbon, manganese,phosphorus, sulfur, siiicon, copper, nickel, chronium, molyb-denum, and vanadiurn shall be determined.

6.2 The chemjcal composition as shown by heat analysisshall be limited by the following:

Grade 60 [420] Grade 80 15501

'100 000 [690]480 000 1550198 000 [675]

^ Tensile strength shall not be less than 1.25 times the actual yield strength.

2.3 Government Standurd:ah{IL-STD-129 Marking for Shipment and Storage2.4 Ll.S. Federal Standard:aFed. Std. No.

.123 Marking for Shipment (Civil Agencies)

3. Terminology

3.1 Defnitions of Terms Specific to Tltis Standard:3,1 ,1 deforntations, r?-transverse protrusions on a de,

forrned bar.3.1;2 deformed ba.r, rz-steel bar with protrusions; a bar

that is intended for use as reinforcement in reinforced concreteand related construction.

3.1.2.I Discussion-The surface of the bar is provided withlugs or protrLrsions that inhibit longitudinal movement of thebau relative to the conclete suroundilrg the bar in suchconstruction, The lugs or protrusions conform to the provisionsof this specification.

3.1 ,3 plain bar, n-steel bar without protrusions.3.7.4 rib,n-longitudinal protrusiolls on a deformed bar.

4. Ordering Infornation4.1 It shall be the responsibility of the purchaser to specify

all requirements that are liecessary for material ordered to thisspecification. Srich requirements shall include, but are notlimited to, the following:

4.1.1 Quantity (weight) [mass],4.1.2 Name of material (low-alioy steel deformed and plain

bars for concrete reinfbrcement).

'' Available tiom Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, htrp://www.dodsso.claos.mil,

max,7o

0,301.500.0350.0450.50

6.3 Choice and use of alloying elements, combined withcalbon, phosphorus, and sulfur to produce the mechanicalproperties prescribed in Thble 2 and Thble 3, shall be made bythe manufacturer. Elements commonly used include manga-nese, silicon, copper, nickel, chromium, molybdenum, vana-dium, columbium, titanium, ancl zirconium.

TABLE 3 Bend Test Requirements

Pin Diameter for 1B0o Bend TestsBar Designation No.

Grade 60 [420] Grade 80 [550]

B0 000 [5s0]A60 000 1420178 000 [540]

141210

121210

Element

CarbonManganesePhosphorusSulfurSillcon

3,4,5 110, 13,16j6,7,8 119,22,2519, 10, 11 [29, s2,36]14, 18 143,571

3dA4d6dBd

31/z dA

5d7d9d

4 d= nominal diameter of specimen.

Page 3: astm a706-a706m-09b

,{$fp nzooraTooM - oeb6.4 The heat analysis shall be such as to provide a carbon

equivalent (C.E.) not exceeding 0.55 Vo as caiculated by thefoilowing formula:

rE _o n , VoMn , VoCtt , VcNi . VoCr VoMo Vay\,.8. : "/a r * *T_ * *?0* + *zo* * _i0* * *30* _ *i0-

(l)6.5 P ro duct ( C he c k ) Ve rifi c: at i on Ana ly s i s_ A procluct check

analysis made by the purchaser shall noi exceed-the followinjpelcelltages:

7. Requirements for Def'ormations7,1 Defo'matioiis shail be spacecr arong the bar at substan-

tially uniform distances. The defbrmationJon opposite sides ofthe bar shall be similar in size, shape, and pattern.

7.2 The defo''arions shall be plaied witri respect to the axisof the bar so that the incluclecl angle .is not less than 45o. Wherethe li'e of deformations forms an includecl angle witrr the axisof the bar from 45 to 70", inclusive, th" d"ior*utions shailreverse alternately in direction on each side, or those on oneside shall be reversed in direction from those on the oppositeside. Where the line of deformation is over 70., a revercal indirectiori shall not be recruired.

1.3 The average spacing or djstance between deformationson each side of the bar shall not exceecl 1,/to of the nominaldiameter of the bar..

7,4 The overall length of deformations shall be such that thegap (measured as a chord) between the ends of the deforma_tions shall not exceed IZ.5 Vo of the nominal pedmeter of thebar. where the ends terminete in a rib, the widtir of the rib shalrbe considered as the gap between these encls. The summationo.f the gaps shall not exceed 25 Vo of the nominal perimeter ofthe bar'. The nominar perimeter of the bar shall be i.14t6 ti,nesthe noniinal diameter.

7.5 The spacing, treight, and gap of defonnations shallconfbrm to the requirements prescribed in f'able l.

8. Measurements of Deforrnations8,1 The avemge spacing of deformations shall be deter

yiled by measuring the length of a minimum of i0 spaces anddividing that le'gth by the number of spaces includecl in themeasurement. The rneasurement shall begin fi.om a point on adeformation at the beginning of the first space to a conesponcl-ing point on a deformation after the last inclucled ipace.Spacing measulements shall not be made over a bar areacontaining biu narking symbols involving letters ol nnmbers.

8.2 The average height of defbrmations shall be determinedfrom measurements made on not less than two typical ctefbr_mations, Determinations shail be based on three measuremeutsper defon,ation, one at the center of the overall length a'd theother two at the quailer points of the overall lensth.

8.3 Insufficient height, insufficient circumfer6ntial cover_age, ot excessive spacing of deformations shail not constitutecause fbr rejection unless it has been clearly established by

determinations on each lot (see Note 2) testecl that typicaldeformation height, gap, ol. spacing do not conform to thelilimum rcquirements prescribed in Section 7, No lejectionshall be made on the basis of measurcments if fewer than tenadjacent deformatior.rs on each side of the bar are measured.

No're 2-As usecl rvithin the intent of 8.3, the term ,,lot,, shall mean allthe bars of one bar size and pattem of deforrnaiions contarned in anlndividual shipping r.elease or shipping order..

9. Mechanical Requirements9.I Tensile propertie.r:

9.1.1 The material, as represented by the test specimens,shall confolm to the requirernents for tensile propefties prc-scribed in 't'irble z' The yiercl srrengrh or yield polnt shali bedeternrined by one of the fbllowinfmethods:

9.1.I.1 Offset method, (0.2Vo oftser) as descr.ibed in TestMethods and De{initions A370. A second tensile test resultshall also be required. In aclcJjtion, the stress corresponcling toa tensile strain of 0.0035 shall be a minimum of OO OttO"psi1420 MPal for Grade 60 {4201ancl a rninimum of g0000 psi1550 MPal for Grade S0 1550]. The value of stress corespond_ing to a tensile strain of 0.0035 shalt be reportecl in the testreporr (13.t.3).

9..I.1.2 By the drop of the beam or hait in the gage of thetensile testing machine, where the steel tested his a sharp-knee<j or well-defined rype of yield poJnr,

_? I ? The percentage of elongation shall be as prescribed inTahle 2.

9.2 Bending properties:

9.2.1 The bend test specimen shall withstand being bentaround a pi' without cracki'g on the outsicle radius of the be'tportion. The requirements for degree of bending and sizes ofpins are prescribed in 'Iirble :. when mater.iar is f'u'rished incoils, the test specimen shall be straightened pdor to ptaclng iiin the bend tester.

9 .2,2 The bend test shall be made on specimens of sufficientiength to ensure fiee bending and with uppuruto, that provides:

9,2.2.1 Continuous and uniform application of forcethroughout the duration of'the bending operation,

9.2.2,2 Unrestricted movement of the ipecirnen at points ofcontact with the apparatus ancl bending around a pin free torotate,

.9..2.2.? Close wrapping of the specimen around the pinduring the bending operation.

9,3 Test Specbnens:9.3.1 The tension test specimens shall be the full section of

the bar as rolled. Trre unit stress dete'mi'ation shall be basedon the nominal bar area.

9.3.2 The bend test specimens shall be the f'ull section of thebar as rolled.

9.3,3 Wherr material is fur:nished in coils, the test specimenshall be taken from the coil and straightened priol to placing itin the jaws oJ the tensile machjne. Straightening oi rhe iestspecimen shall be done calefully to avoicl formation of localslrarp bends and to minimize cold work. (See irlolc 3.)

,9:3.3.1 Test specimens taken fi.om post_fabricated materialshall not be used to determine conformance to this specifica_I10n.

Flement

CarbonManganesePhosphorusSulfurSilicon

max, ok

0.33 o/o

1 .56 0/.

0.043 y"

0.053 %0.55 %

Page 4: astm a706-a706m-09b

,{$}p azoonzoorll - oebNore 3-Tnsufricient straigrrtening prior to aitaclring the extensometer

can resnlt in lower-tha'-actuai yicld strength readi'gs. Murtiple bencringdistorlion fron mechanioal straightening ancl fhbricating machines cailead to excessive cold work, r:esulting in lrigher. yield Jtrengths, loiverelongation valnes, and a loss of deformation heiglri.

10. Permissible Variation in Weight fMass]10.1 Deformed reinforcing bars shall be evaluated on the

basis of nominal weight lmassl. The weight [mass] detenninedusing the measured weight [mass] of the test specimen androunding in accordance wjth practice il2!1, shafi be at least94 Vo of the applicable weight fmass] per unit length prescribedin Tahle 1. In no case shall overweight [excess maisl of anydeformed bar be cause for reiection.

10.2 Weight [mass] variation for plain bar.s shall be com_puted on the basis of pennissible vadation in diarneter. Forplain bars smaller than 3/s in. l'9.5 mml in diarneter, useSpecification A5 I 0 [Specification A5 I 0M]. For larger bars upto and includingZVz in. [63.5 mm] in diameter, use Specifica-tion A6lA61Vi

11. Finish

I 1.1 The bals shall be free of detrimental surface imoerfec_tions.

1L2 Rust, seiims, surface in.egulzuities, or mill scale shallnot be cause for rejection, provicled the weight, dimensions,cross-sectional area, and tensile properties of a hand wirebrushed test specimen are not less than the requirements of thisspecification.

ll.3 Surface imperfections or flaws other than those sneci_fied in ll.2 shall be consjdered detrimental when specimeuscontaining such imperfections fail to conform to either tensileor bending requirements. Examples include, but are not limitedto, laps, seams, scabs, slivers, cooling or casling cracks, anclnill or guide marks.

Norri 4-Deformed reinforcing bars intencled for epoxy coating appli_cations sho'ld have surfaces with a nrinimurn of sharp edgcs to achicveproper coverage. Particular attentioll should be given to bal marks anddefonnations where coating difficulties are prone to occul..

Norn 5*Deformed reinfbrcing bars destined to be mechanicallv_spliced or butt-welded nray require a certain degree of roundness in orderfor the splices to adequately achieve strength requirernents.

12. Number of Tests and Retests

12.1 All mechanical tests shall be conducted in accorclancervith Test Metliods and Definitions A370 iricluding Annex ,{9.

12.2 Number of Tests-Otte tension test, one bend test, andone set of dimensional property tests including bar weightlnassl and spacing, height, and gap of defonnations shall bemade of each bar size rolled from a heat.

72.3 Retests:

12.3.I If the results of an original tension specimen fail tomeet the specified minimum requirements and are within 2000

$i It+ MPal of the required tensile strength, wirhin j000 psi[7 MPa] of the required yield strength, or within two percent-age units of the required elongation, a retest shall be pernrittedon two random specimens for each original tension specimenfailure from the lot. Both retest specimens shall meet therequirements of this specification.

12,3.2 If a bend test fails for reasons other than mechanicalreasons or flaws in the specimen as described in .l2.3.4.2 and12.3.4.3, a retest shall be permitted on two r.anciom specimensfrom the same lot. Both retest specimens shall irieet therequirements of this speciflcation. The retest shall be per_fgnned on tesf specimens that are at air temperature but not lessthan 60'F 116'Cl.

12.3.3 11 a weight [rnass] test fails for reasons other thanflaws in the specimen as described in 12.3.4,3, a retest shall bependtted on two random specimens from the same lot, Bothretest specimens shall meet the requirements of this specifica_non.

L2.3.4 If the original test or any of the random retests f'ailsbecause of any reasons listeci in t2.3.4.-l ,12.3.4.2,or 12.3.4.3,the test shall be consiclered an invalid test:

12.3.4.1 The elongation property of any tension test speci_men is less than that specified, and any part of the fracture isoutside the middle half of the gage length, as indicatecl byscdbe marks on the specimen before testing;

NorE_6*Marking specimens rvith muitiple scribe or.punch marks canreduce the occuffence of rracture outside ol near tl'lese lnalts and the needfor declaling the test invalid.

12.3.4.2 Mechanical r.easons such as failur.e of testinEec;uipment ol irnproper specimen preparation; and

)2.3.4.3 Flaws are detected in a test specimen, either beforeor during the performance of tlle test.

12.3.5 The original results from sections 12.3.4.1, 12,3.4.2,or 12.3.4.3 shall be discarded and the test shall be repeated ona new specimen from the sane lot.

13. Test Reports

- 13..1 The following infonlation shall be reported on a perheat basis. Report additional items as requested or desired.

13.1.1 Chemical analysis including carbon, tranganese,phosphorous, sulfur, silicon, copper, nickel, chromium, inolvb_denrrm, and vanadiurn.

13.1.2 Carbon equivalent in accordance with 6.4.13.1.3 Tensile properties.13.1.4 Bend test.13.2 A Material Test Report, Certificate of Inspection, or

similar document printed from or used in electronic form fi.oman eiectronic data interchange (EDI) transmission shall beregarded as having the same validity as a counteq)art printed inthe certifier's facility. The content of the EDI trinsrnirteddocument must meet the lequirements of the invoked ASTMstandard(s) and conform to any EDI agleement between thepurchaser and the supplier. Notwithstancling the absence of asignature, the organization submitting the EDI transrnission isresponsible for the contsnli of the report.

Nore 7-The industry definition invoked hete is: EDI is the coniputerto computer exchange of business infor:nation i' a standartl lbr.rnat suchas ANSI ASC Xl2.

14. Inspection

14.1 The inspector representing the purchaser shall havefree entry, at all times whiie work on the contract of thepurchaser is being perfor.med, to all parts of the manufactuler'sworks that conceln the manufacture of the material ordered,

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.{$fp nzoonzooM - oeb'he manufacturer shail afford the inspector ail reasonableacilities to satisfy the inspector that ihe naterial is beingurnished in accordance with this specification. All tesiexcept product (check) analysis) ancl inspection shall be madet the place of manuf'acture pdor to shipment, unless otherwisepecified, ar:d shall be so conducted so as not to interf.erennecessarily with the operation of the works.

74.2 For Govenunent procurement Onty_Except as other.vise specified in.the contract, the contractor shall be respon*ible for the perfonnance of all inspection and test ,"quir=-nents specified herein a'd shall be permitted to use one's owl'rr any other suitable facilities fbr the perfbrmance of thenspection and test requirenrents specified herein, unless cfis_pproved by the purchaser at the time of purchase, Therurchaser shall have the right to perform any of ihe inspections.nd tests at the sa're fiequency as set forth in this specificationvhere such inspections are deemecl necessary to assure thatnaterial conforms to prescribed requirements-

5. Rejection

15.1 Unless otherwise specified, any rejection based on testsnade in accordance with 6.5 shall be reported to the manufac_urer within five working days from the receipt of sarrples byhe purchaser.

16. Marking

16.1 Wren loaded for mill shipment, bars shall be properlyreparated and tagged with the manufacturer's heat oi t"stdentification number,

76.2 Each mannf'acturer shall identify the synrbols of hisnarking system.

16.3 All bars produced to this specification, except plain'ound bars, which shail be tagged for gracle, shall be ide'iineO

SUMMARY OF CHANGES

committee A01 has identified the location of selected changes to this standard since the(A'706/A706M -09a) that may irnpact the use of this stanclarcl. (Approved Nov. 15, 2009,)

1) Revised 9. 1 . l. I .

committee A01 has identifled the location of selectecl changes to this stanclard since the(A706/A706M - 09) rhar may irnpacr the use ot this srandarcl, (Apiroveo oct. 1, 2009.)

by a distinguishing set of rnarks legibly rollecl onto the surfaceof one side of the bar to denote in tne fottowing order:

16.3.I Point of Origin-Letter 01. syrnbol established as themanufacturer's mill designation.

. 16:3.2 Size Designation*Arabic number corresponding tobar designation nurnber of Tablqr l.

16.3.3 Tlpe of Steel-Letter W indicating that the bar wasprodrced to this specification, or letters t4z ari S jndicating thatlhe bT was produced to meet both this specification anclSpecification ,46 I 51461 5M

16.3,4 Mhdrnumyiel.rJ Strcngth Designatiort_For Grade 60[420] bars,.the marking shall be either ihe number 60 [4] or asingle contiruous longitudinal line through at least live spacesoffset from the center of the bar, For Gride g0 i5501 bars, themarking shall be either the number g0 [6] or three continuouslongitudinal lines through ar leasr Iive ipices.

-16.3.5 It shall be permissible to substitute a metdc size bar

of Grade 420 {or the conesponding inch_pound size bar ofGrade 60, and a mefiic size bar- of Giacle 550 for thecorresponding inch-pound size bar of Grade g0.

17. Packaging and package Marking

. 17.1 Packaging, marking, and loading for shipment shall bein accordance with practices 4700.

17 .2 When specified in the contract or order, and fbr directprocurement by or direct sliipment to the U.S. Government,marking for shipment, in addition to lequircments specified inthe contract or order., shall be in accordance with MIL_STD_129 tor rnilitary agencies ancl with Fecl. Srd. No. 123 for civilagencies.

18. Keywords

18.1 alloy steel; concrete reinforcement; cleformations (pro_trusions); steel bars

last issue

last issue

il)/)\Added Grade 80 [550] to rhe specificarion.Revised 1.2, 16.3,16.3.4,l(r.3.], and'Ihbles 2 and 3.

(3) Added t\'iots 1 and 4..j.4, andrenumbered subsequent notesand subsections.

committee A01 has identi{ied the location of selected changes to this standard since the last issue(A706/A706M-08a) that may irnpact the use of this sranclarct. (Approvecl May l, 2009.)

(1) Deleted Table Footnote A uncler ]'able I ancl relabeled (2) Revised"Iir6le Z.subsequent footnotes.

Page 6: astm a706-a706m-09b

{fp nzoo/A7o6M - oeb

Committee A01 has idenrified the location of(47061A706M- 08) that may irnpacr the use of this

Revised 9.1.1,1.

selected changes to this standardstandard. (Approved Ocr. 1, 2009.)

since the last ts$ue

fi\

committee A01 has identilied the location -of selected changes to this standard si,ce the last(4706/A706M - 06a) rhat may impacr the rise of this standard. ffirouro May r, 200g,)

lSSUC

(1) Revised 9,1.1.1, (2) Added 9.3.3,9.3,3,j, and Nore 3.

AsrM lnternational takes no.positio.n respecting the vatidity.of any patent ilghts assefted in connection with any *em montianedin this standad' lJserc of this stanaara are expresZy iaitii nut addrrinutioi, it nr-iiiiitv or any such patent rights, and the riskof infringement of such rights, aro entirely tnii, o*i ,""poiiioitity. *'- '-"s".1

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