1、Designation: B348 13Standard Specification forTitanium and Titanium Alloy Bars and Billets1This standard is issued under the fixed designation B348; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe
2、r in parentheses 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 specification2covers annealed titanium and tita-nium
3、alloy bars and billets as follows:1.1.1 Grade 1UNS R50250. Unalloyed titanium,1.1.2 Grade 2UNS R50400. Unalloyed titanium,1.1.2.1 Grade 2HUNS R50400. Unalloyed titanium(Grade 2 with 58 ksi (400 MPa) minimum UTS),1.1.3 Grade 3UNS R50550. Unalloyed titanium,1.1.4 Grade 4UNS R50700. Unalloyed titanium,
4、1.1.5 Grade 5UNS R56400. Titanium alloy (6 %aluminum, 4 % vanadium),1.1.6 Grade 6UNS R54520. Titanium alloy (5 %aluminum, 2.5 % tin),1.1.7 Grade 7UNS R52400. Unalloyed titanium plus 0.12to 0.25 % palladium,1.1.7.1 Grade 7HUNS R52400. Unalloyed titanium plus0.12 to 0.25 % palladium (Grade 7 with 58 k
5、si (400 MPa)minimum UTS),1.1.8 Grade 9UNS R56320. Titanium alloy (3 %aluminum, 2.5 % vanadium),1.1.9 Grade 11UNS R52250. Unalloyed titanium plus0.12 to 0.25 % palladium,1.1.10 Grade 12UNS R53400. Titanium alloy (0.3 %molybdenum, 0.8 % nickel),1.1.11 Grade 13UNS R53413. Titanium alloy (0.5 %nickel, 0
6、.05 % ruthenium),1.1.12 Grade 14UNS R53414. Titanium alloy (0.5 %nickel, 0.05 % ruthenium),1.1.13 Grade 15UNS R53415. Titanium alloy (0.5 %nickel, 0.05 % ruthenium),1.1.14 Grade 16UNS R52402. Unalloyed titanium plus0.04 to 0.08 % palladium,1.1.14.1 Grade 16HUNS R52402. Unalloyed titaniumplus 0.04 to
7、 0.08 % palladiumm (Grade 16 with 58 (400 MPa)ksi minimum UTS),1.1.15 Grade 17UNS R52252. Unalloyed titanium plus0.04 to 0.08 % palladium,1.1.16 Grade 18UNS R56322. Titanium alloy (3 %aluminum, 2.5 % vanadium) plus 0.04 to 0.08 % palladium,1.1.17 Grade 19UNS R58640. Titanium alloy (3 %aluminum, 8 %
8、vanadium, 6 % chromium, 4 % zirconium, 4 %molybdenum),1.1.18 Grade 20UNS R58645. Titanium alloy (3 %aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 %molybdenum) plus 0.04 %0.08 % palladium,1.1.19 Grade 21UNS R58210. Titanium alloy (15 %molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon),
9、1.1.20 Grade 23UNS R56407. Titanium alloy (6 %aluminum, 4 % vanadium with extra low interstitial elements,ELI),1.1.21 Grade 24UNS R56405. Titanium alloy (6 %aluminum, 4 % vanadium) plus 0.04 % to 0.08 % palladium,1.1.22 Grade 25UNS R56403. Titanium alloy (6 %aluminum, 4 % vanadium) plus 0.3 % to 0.8
10、 % nickel and0.04 % to 0.08 % palladium,1.1.23 Grade 26UNS R52404. Unalloyed titanium plus0.08 to 0.14 % ruthenium,1.1.23.1 Grade 26HUNS R52404. Unalloyed titaniumplus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi (400MPa) minimum UTS),1.1.24 Grade 27UNS R52254. Unalloyed titanium plus0.08 to 0.14
11、% ruthenium,1.1.25 Grade 28UNS R56323. Titanium alloy (3 %aluminum, 2.5 % vanadium plus 0.080.14 % ruthenium),1.1.26 Grade 29UNS R56404. Titanium alloy (6 %aluminum, 4 % vanadium, extra low interstitial, ELI plus 0.08to 0.14 % ruthenium),1.1.27 Grade 30UNS R53530. Titanium alloy (0.3 %cobalt, 0.05 %
12、 palladium),1.1.28 Grade 31UNS R53532. Titanium alloy (0.3 %cobalt, 0.05 % palladium),1.1.29 Grade 32UNS R55111. Titanium alloy (5 %aluminum, 1 % tin, 1 % zirconium, 1 % vanadium, 0.8 %molybdenum),1.1.30 Grade 33UNS R53442. Titanium alloy (0.4 %nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 %chr
13、omium),1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.01 on Titanium.Current edition approved July 1, 2013. Published August 2013. Originallyapproved in 1959. Last previous edition ap
14、proved in 2011 as B348 11. DOI:10.1520/B0348-13.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-348 in Section II of that Code.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
15、Conshohocken, PA 19428-2959. United States11.1.31 Grade 34UNS R53445. Titanium alloy (0.4 %nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 %chromium),1.1.32 Grade 35UNS R56340. Titanium alloy (4.5 %aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron,0.3 % silicon),1.1.33 Grade 36UNS R58450. Tita
16、nium alloy (45 %niobium),1.1.34 Grade 37UNS R52815. Titanium alloy (1.5 %aluminum), and1.1.35 Grade 38UNS R54250. Titanium alloy (4 %aluminum, 2.5 % vanadium, 1.5 % iron).NOTE 1H grade material is identical to the corresponding numericgrade (that is, Grade 2H = Grade 2) except for the higher guarant
17、eedminimum UTS, and may always be certified as meeting the requirementsof its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H areintended primarily for pressure vessel use.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematic
18、alconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:3E8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE539 T
19、est Method forAnalysis of TitaniumAlloys by X-RayFluorescence SpectrometryE1409 Test Method for Determination of Oxygen and Nitro-gen in Titanium and Titanium Alloys by the Inert GasFusion TechniqueE1447 Test Method for Determination of Hydrogen in Tita-nium and Titanium Alloys by Inert Gas Fusion T
20、hermalConductivity/Infrared Detection MethodE1941 Test Method for Determination of Carbon in Refrac-tory and Reactive Metals and TheirAlloys by CombustionAnalysisE2371 Test Method for Analysis of Titanium and TitaniumAlloys by Direct Current Plasma and Inductively CoupledPlasma Atomic Emission Spect
21、rometry (Performance-Based Test Methodology)E2626 Guide for Spectrometric Analysis of Reactive andRefractory Metals3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bar, na hot rolled, forged, extruded or cold workedsemifinished solid section product whose cross sectional area i
22、sequal to or less than 16 in.2(10 323 mm2); rectangular bar mustbe less than or equal to 10 in. (254 mm) in width and greaterthan 0.1875 in. (4.8 mm) in thickness.3.1.1.1 DiscussionExtruded bar has been approved for useon unalloyed titanium grades 1, 2, 3 and 4 only. Other gradesmay be produced via
23、the extrusion process with agreementbetween the producer and the purchaser.3.1.2 billet, na solid semifinished section hot worked orforged from an ingot, with a cross sectional area greater than 16in.2(10 323 mm2) whose width is less than five times itsthickness.4. Ordering Information4.1 Orders for
24、 material under this specification shall includethe following information as applicable:4.1.1 Grade number (Section 1),4.1.2 Product classification (Section 3),4.1.3 Chemistry (Table 1),4.1.4 Mechanical properties (Table 2),4.1.5 Marking (Section 16),4.1.6 Finish (Section 8),4.1.7 Packaging (Section
25、 16),4.1.8 Required reports (Section 15), and4.1.9 Disposition of rejected material (Section 14).5. Chemical Composition5.1 The grades of titanium and titanium alloy metal coveredby this specification shall conform to the requirements as tochemical composition prescribed in Table 1.5.1.1 The element
26、s listed in Table 1 are intentional alloyadditions or elements which are inherent to the manufacture oftitanium sponge, ingot or mill product.5.1.1.1 Elements other than those listed in Table 1 aredeemed to be capable of occurring in the grades listed in Table1 by and only by way of unregulated or u
27、nanalyzed scrapadditions to the ingot melt. Therefore, product analysis forelements not listed in Table 1 shall not be required unlessspecified and shall be considered to be in excess of the intentof this specification.5.1.2 Elements intentionally added to the melt must beidentified, analyzed and re
28、ported in the chemical analysis.5.2 When agreed upon by the producer and purchaser andrequested by the purchaser in his written purchase order,chemical analysis shall be completed for specific residualelements not listed in this specification.5.3 Product AnalysisProduct analysis tolerances do notbro
29、aden the specified heat analysis requirements, but covervariations between laboratories in the measurement of chemi-cal content. The manufacturer shall not ship material which isoutside the limits specified in Table 1 for the applicable grade.Product analysis limits shall be as specified in Table 3.
30、6. Mechanical Properties6.1 Material supplied under this specification shall conformto the mechanical property requirements given in Table 2,asapplicable.6.2 Tension testing specimens are to be machined and testedin accordance with Test Methods E8. Tensile properties shallbe determined using a strai
31、n rate of 0.003 to 0.007 in./in./minthrough the specified yield strength, and then increasing therate so as to produce failure in approximately one additionalminute.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Bo
32、ok of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.B348 132TABLE1ChemicalRequirementsComposition,WeightPercentA,B,C,D,EGradeUNSNumberCarbon,max.Oxygenrangeormax.Nitrogen,max.Hydrogen,max.Ironrangeormax.AluminumVanadiumPalladiumRutheniumNickelMolyb
33、denumChromiumCobaltZirconiumNiobiumTinSiliconOtherElements,max. eachOtherElements,max.total1R502500.080.180.030.0150.20-0.10.42/2HR504000.080.250.030.0150.30-0.10.43R505500.080.350.050.0150.30-0.10.44R507000.080.400.050.0150.50-0.10.45R564000.080.200.050.0150.405.5- 6.753.5-4.5-0.10.46R545200.080.20
34、0.030.0150.504.0-6.0-2.0-3.0-0.10.47/7HR524000.080.250.030.0150.30-0.12-0.25-0.10.49R563200.080.150.030.0150.252.5-3.52.0-3.0-0.10.411R522500.080.180.030.0150.20-0.12-0.25-0.10.412R534000.080.250.030.0150.30-0.6-0.90.2-0.4-0.10.413R534130.080.100.030.0150.20-0.04-0.060.4-0.6-0.10.414R534140.080.150.
35、030.0150.30-0.04-0.060.4-0.6-0.10.415R534150.080.250.050.0150.30-0.04-0.060.4-0.6-0.10.416/16HR524020.080.250.030.0150.30-0.04-0.08-0.10.417R522520.080.180.030.0150.20-0.04-0.08-0.10.418R563220.080.150.030.0150.252.5-3.52.0-3.00.04-0.08-0.10.419R586400.050.120.030.020.303.0-4.07.5-8.5-3.5-4.55.5-6.5
36、-3.5-4.5-0.150.420R586450.050.120.030.020.303.0-4.07.5-8.50.04-0.08-3.5-4.55.5-6.5-3.5-4.5-0.150.421R582100.050.170.030.0150.402.5-3.5-14.0-16.0-2.2-3.2-0.15-0.250.10.423R564070.080.130.030.01250.255.5-6.53.5-4.5-0.10.424R564050.080.200.050.0150.405.5- 6.753.5-4.50.04-0.08-0.10.425R564030.080.200.05
37、0.0150.405.5- 6.753.5-4.50.04-0.08-0.3-0.8-0.10.426/26HR524040.080.250.030.0150.30-0.08-0.14-0.10.427R522540.080.180.030.0150.20-0.08-0.14-0.10.428R563230.080.150.030.0150.252.5-3.52.0-3.0-0.08-0.14-0.10.429R564040.080.130.030.01250.255.5-6.53.5-4.5-0.08-0.14-0.10.430R535300.080.250.030.0150.30-0.04
38、-0.08-0.20-0.80-0.10.431R535320.080.350.050.0150.30-0.04-0.08-0.20-0.80-0.10.4B348 133TABLE1ContinuedComposition,WeightPercentA,B,C,D,EGradeUNSNumberCarbon,max.Oxygenrangeormax.Nitrogen,max.Hydrogen,max.Ironrangeormax.AluminumVanadiumPalladiumRutheniumNickelMolybdenumChromiumCobaltZirconiumNiobiumTi
39、nSiliconOtherElements,max. eachOtherElements,max.total32R551110.080.110.030.0150.254.5-5.50.6-1.4-0.6-1.2-0.6-1.4-0.6-1.40.06-0.140.1.0.433R534420.080.250.030.0150.30-0.01-0.020.02-0.040.35-0.55-0.1-0.2-0.10.434R534450.080.350.050.0150.30-0.01-0.020.02-0.040.35-0.55-0.1-0.2-0.10.435R563400.080.250.0
40、50.0150.20-0.804.0-5.01.1-2.1-1.5-2.5-0.20-0.400.10.436R584500.040.160.030.0150.03-42.0-47.0-0.10.437R528150.080.250.030.0150.301.0-2.0-0.10.438R542500.080.20-0.300.030.0151.2-1.83.5-4.52.0-3.0-0.10.4AAtminimum,theanalysisofsamplesfromthetopandbottomoftheingotshallbecompletedandreportedforallelement
41、slistedfortherespectivegradeinthistable.BFinalproducthydrogenshallbereported.Ingothydrogenneednotbereported.Lowerhydrogenmaybeobtainedbynegotiationwiththemanufacturer.CSinglevaluesaremaximum.Thepercentageoftitaniumisdeterminedbydifference.DOtherelementsneednotbereportedunlesstheconcentrationlevelisg
42、reaterthan0.1%each,or0.4%total.Otherelementsmaynotbeaddedintentionally.Otherelementsmaybepresentintitaniumortitaniumalloysinsmallquantitiesandareinherenttothemanufacturingprocess.Intitaniumtheseelementstypicallyincludealuminum,vanadium,tin,chromium,molybdenum,niobium,zirconium,hafnium,bismuth,ruthen
43、ium,palladium,yttrium,copper,silicon,cobalt,tantalum,nickel,boron,manganese,andtungsten.EThepurchasermay,inthewrittenpurchaseorder,requestanalysisforspecificelementsnotlistedinthisspecification.B348 1347. Dimensions, Weight, and Permissible Variations7.1 SizeTolerances on titanium and titanium alloy
44、 mate-rial covered by this specification shall be as specified in Tables4-11, as applicable.7.2 WeightQuantity extras are applicable to individualitems of a grade, thickness, width, and length ordered at onetime for shipment at one time to one destination. Differentlengths of the same size and grade
45、 may be combined forTABLE 2 Tensile RequirementsAGradeTensile Strength, min Yield Strength (0.2 % Offset) min or range Elongation in 4D,min, %Reduction of Area,min %ksi MPa ksi MPa1 35 240 20 138 24 302 50 345 40 275 20 302HB,C58 400 40 275 20 303 65 450 55 380 18 304 80 550 70 483 15 255 130 895 12
46、0 828 10 256 120 828 115 795 10 257 50 345 40 275 20 307HB,C58 400 40 275 20 309 90 620 70 483 15 259D90 620 70 483 12 2511 35 240 20 138 24 3012 70 483 50 345 18 2513 40 275 25 170 24 3014 60 410 40 275 20 3015 70 483 55 380 18 2516 50 345 40 275 20 3016HB,C58 400 40 275 20 3017 35 240 20 138 24 30
47、18 90 620 70 483 15 2518D90 620 70 483 12 2019E115 793 110 759 15 2519F135 930 130 to 159 897 to 1096 10 2019G165 1138 160 to 185 1104 to 1276 5 2020E115 793 110 759 15 2520F135 930 130 to 159 897 to 1096 10 2020G165 1138 160 to 185 1104 to 1276 5 2021E115 793 110 759 15 3521F140 966 130 to 159 897 to 1096 10 3021G170 1172 160 to 185 1104 to 1276 8 2023 120 828 110 759 10 1523D120 828 110 759 7.5H,6.0I2524 130 895 120 828 10 2525 130 895 120 828 10 2526 50 345 40 275 20 3026HB,C58 400 40 275 20 3027 35 240 20 138 24
